ZooKeys 642: 1–52 (2017)
doi: 10.3897/zookeys.642.10443
feminine Hydroides
A peer-reviewed open-access journal
1
CHECKLIST
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Launched to accelerate biodiversity research
Hydroides Gunnerus, 1768 (Annelida, Serpulidae) is
feminine: a nomenclatural checklist of updated names
Geoffrey B. Read1, Harry A. ten Hove2, Yanan Sun3,4, Elena K. Kupriyanova3,4
1 National Institute of Water and Atmospheric Research (NIWA), 301 Evans Bay Parade, Hataitai, Wellington 6021, New Zealand 2 Naturalis Biodiversity Center, Darwinweg 2, 2333 CR Leiden, the Netherlands
3 Australian Museum, 1 William Street, Sydney, NSW, 2010, Australia 4 Department of Biological Science,
Macquarie University, Sydney, NSW, Australia
Corresponding author: Geoffrey B. Read (Geoffrey.Read@niwa.co.nz)
Academic editor: G. Rouse | Received 8 September 2016 | Accepted 29 November 2016 | Published 3 January 2017
http://zoobank.org/DE6CF77A-547B-4259-B41E-D1D79A0E5CFF
Citation: Read GB, ten Hove HA, Yanan Sun Y, Kupriyanova EK (2017) Hydroides Gunnerus, 1768 (Annelida,
Serpulidae) is feminine: a nomenclatural checklist of updated names. ZooKeys 642: 1–52. https://doi.org/10.3897/
zookeys.642.10443
Abstract
As a service to taxonomists and ecologists using names in the well-known and species-rich ship-fouling
serpulid genus Hydroides we present an update of all 107 non-synonymised scientific names, with additional
information on Hydroides nomenclature, original names, etymologies, and type localities derived from
original literature, and in accord with the World Register of Marine Species (WoRMS) database. An update
is needed because the gender of genus Hydroides has from 1 January 2000 reverted to the original feminine,
due to a change in the wording of International Code of Zoological Nomenclature which was overlooked
at that time, and is contrary to the usage in practice of Hydroides as masculine which had started about
1992, although Code-required from the 1960s. We match 31 further original names of current WoRMS
subjective junior synonyms to each non-synonymised name, and also report on the world distribution of
the genus as illustrated by type localities of the valid names. We include notes on seven species inquirenda.
The correct rendering is given of six names that have been altered for gender agreement for the first time
herein. Hydroides gottfriedi nom. n. replaces junior homonym H. rostrata Pillai, 1971. Currently there are
41 non-synonymised species-group names in Hydroides which should be gender invariant, and 23 names
which would only change if moved to a neuter genus; the remaining 43 names are fully gender variable.
Place-names (23), and personal names (16) make up more than a third (36%) of the species names, with
most of the remainder (68) being descriptive of species character states, usually of operculum morphology
(54). All species, except H. norvegica (63°N), have type localities in shallow-water coastal locations in
temperate to tropical waters below latitude 44°, with the highest number of new species (54) from the
adjoining Western Pacific and Indian Ocean areas. The other concentration of new species (31) are those
first found on the Pacific and Atlantic coasts of North America and in the Caribbean.
Copyright Geoffrey B. Read et al.. This is an open access article distributed under the terms of the Creative Commons Attribution License (CC
BY 4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
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Geoffrey B. Read et al. / ZooKeys 642: 1–52 (2017)
Keywords
Etymology, gender agreement, geolocation, ICZN, type locality
Introduction
An unusual situation has arisen concerning the correct formulation and spelling of
historic species-group names in Hydroides Gunnerus, 1768 (Serpulidae) with respect
to the established requirement of the International Code of Zoological Nomenclature
(hereafter the Code) that the suffix spelling of a Latin or Latinized adjectival speciesgroup name must agree in gender with its genus (ICZN 1999: Article 31.2). The
stability of Hydroides names is important for tracking name usages as it is the largest
serpulid genus, currently with 107 non-synonymised names, and also a further 31
original names currently placed as subjective synonyms. Hydroides includes H. elegans
(Haswell, 1883), a model organism for settlement and genetic study (e.g., Hadfield
1998), and some other economically important species such as H. ezoensis Okuda,
1934, H. dianthus (Verrill, 1873), H. dirampha Mörch, 1863, and H. sanctaecrucis
Krøyer [in] Mörch, 1863, which are foulers of ship hulls, harbour structures, and
aquaculture equipment (Sun et al. 2015).
Hydroides species are easily recognisable by the morphology of the plug which closes
the mouth of their calcareous tubes. It is a two-tier operculum with a basal funnel and
a distal spinous structure called the verticil. The distinctive and varied structure of the
verticil spines has enabled many Hydroides species to be detected. Identification from tubes
alone is problematic, thus past diversity is difficult to determine from the fossil record in
the absence of the opercula. Hydroides has no current subgenera, but Eupomatus Philippi
1844, the most prominent junior synonym of Hydroides, and the little-used Eucarphus
Mörch, 1863, were both at times used as subgenera defined by verticil morphology. The
taxonomic history is reviewed in Bastida-Zavala and ten Hove (2002).
We recently realised that the gender agreement serpulid taxonomists had been
applying to adjectival Hydroides species-group names for the last 16 years was the opposite
of that required by the fourth edition of the Code (ICZN 1999, effective 1 January
2000), in that authors since that date had continued using or creating masculine instead
of feminine Latin forms. Additionally, taxonomists had not consistently observed the
different Code rule applicable prior to 1999, with one author producing new Hydroides
names seemingly of both genders in the same publication (Straughan 1967a). Therefore
we have compiled a checklist of Hydroides name spellings we believe are currently
correct, including also identifying the names not subject to gender agreement.
The derivation of Hydroides as an Annelida genus name is known. Stearn (1983:
266) explains that substantives derived from -oides were commonly used for new
genera before and during Linnæus’ era to indicate resemblance to a genus already
known, sometimes just as temporary names. The -oides suffix is originally adjectival,
transliterated from Greek οειδης. Gunnerus had at first used the cnidarian genus of
Hydra (named for the creature of Greek myth) as the genus name for his new tube-
feminine Hydroides
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dwelling worm in 1766 correspondence with Linnæus, but shortly thereafter changed
it to Hydroides for his new species H. norvegica as published in 1768, “until Mr. v.
Linné makes its genus known” (Gunnerus 1768, Moen 2006). The link to hydrozoans
was spurious, but the genus name persisted. Usage of the same spelling applied to
true hydrozoans persists in Romance language works, where “hydroïdes” (hydroids)
can substitute for the formal higher group name, Hydrozoa. The pair of usages are
not homonyms in the strict Code sense, but there is some false positive reporting of
the Hydroides annelid genus in bioinformatics search results (e.g., from some of the
Hydrozoa works of Billard, such as Billard 1907).
Hydroides was feminine because Gunnerus clearly treated it as feminine when
he used the feminine ‘norvegica’ as epithet for the worm instead of the masculine
‘norvegicus’ (likewise the calcareous tube was separately named Serpula norvegica by
Gunnerus). However, in recent years Gunnerus’s original feminine gender assignment
for Hydroides became not obvious to most. This is exemplified by Moen (2006), who
in the summary of her historical paper on Gunnerus reports without qualification that
“in 1768 J. E. Gunnerus first described the species Hydroides norvegicus”. Although
Moen was well aware Gunnerus did not use that spelling she perhaps believed the
‘correct’ masculine ending (although incorrect since 2000) was always to be used,
regardless of what was originally written.
The Code in its first edition indicated that genus names ending in -oides were to be
treated as masculine (ICZN 1961: 33, Article 30(a)(ii) Examples), whereas in botany
they were treated as feminine (Stearn 1983: 265). By the time of the Code third
edition (ICZN 1985: 30, Article 30(b) Examples) the article text was the same, with
the examples text explaining that these masculine genus names were substantivated
adjectives, thus for Hydroides the adjectival descriptive of ‘hydra-like’ was functioning
as a noun. Mandatory gender agreement, although much debated, was retained in the
Code fourth edition, but changes were made in order “to simplify the identification of
gender in genus-group names” (ICZN 1999: XXVI).
Unexpectedly one of the qualifying clauses now included in the Code fourth
edition (ICZN 1999) had a major effect on Hydroides Gunnerus by reverting it to
feminine status after almost 40 years as the opposite gender. The wording of Article
30.1.4.4 in full is “A compound genus-group name ending in the suffix -ites, -oides,
-ides, -odes, or -istes is to be treated as masculine unless its author, when establishing the
name, stated that it had another gender or treated it as such by combining it with an
adjectival species-group name in another gender form.” Why the Code editorial group
thought the refinement was necessary is unknown, but presumably it was regarded as
better matching contemporary practice with the original 18–19th century usages.
Hydroides began as feminine in 1768, and feminine adjectival endings matching
this were usual for over 220 years but not universal (e.g., H. bifurcatus Pixell, 1913).
Hartman (1965: 79) had maintained original feminine endings in her supplementary
world catalogue, although not long later she had used the masculine for H. pacificus
Hartman (Hartman 1969). Masculine endings, which the Code had required from
the early 1960s onwards, otherwise only became common around 1992 (Moen 2006:
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121), although H. bifidus Imajima, 1982 and H. bisectus Imajima & ten Hove, 1989
were newly described somewhat earlier. Ben-Eliahu and ten Hove (1992: 37) correctly
pointed out that the Code third edition (ICZN 1985) had Hydroides as masculine
(actually in place since the first edition). Serpulid taxonomists then adopted the use of
masculine endings and continued with this right up to August 2015, unaware of the
change back to feminine required from 1 January 2000 when the new Code came into
effect. The fourth edition Code was incorrectly cited as continuing masculine endings in
ten Hove and Ben-Eliahu (2005: 128). In summary, for nearly 40 years species names
in Hydroides were required to have masculine endings according to the ICZN Code,
although largely ignored for about 30 years, and now for the last 16 years they were
required to have the feminine ending as begun by Gunnerus, also ignored. The conflict
was first reported in WoRMS by one of us (GBR) in July 2015, after a misinterpretation
of the Code requirement for Hydroides names was published in Tovar-Hernández et al.
(2016, as first online July 2015, p.8). Gender-corrected names were subsequently used
in Sun et al. (2015), Kupriyanova et al. (2015), and Sun et al. (2016).
Code Article 31 (ICZN 1999) explains some of the requirements and exceptions
regarding species-group Latin name formation. In general, most species-group names
ending in the suffixes -us, -a, -um are declinable and likely to be adjectives. There are
some exceptions applicable here such as -spina, which is a noun in apposition and
should not change with gender, and most other name endings will not change. The
only possible endings of changeable adjectives are -a, -us (these two make up over
60% of all names), -is, -um, -e, -er, -ior, whereas nouns can have all endings (WelterSchultes 2013). Personal names as species-group names are usually (exceptions)
formed as genitive-case nouns (ICZN 1999, Article 31.1). Nouns with Latin adjectival
suffixes can become adjectives, notably non-Latin place-names with the suffixes -ensis
(masculine/feminine) or -ense (neuter), indicating of that place, or suffix ‘-anus -a’,
indicating belonging to. However, nouns compounded with dictionary Latin adjectives
are treated as noun phrases in apposition (ICZN 1999, glossary).
Here we present an update of all non-synonymised names, and additional
information on Hydroides nomenclature, as derived in conjunction with the World
Register of Marine Species (WoRMS) Polychaeta database (Read and Fauchald 2016),
where further details are available. Certain species inquirenda (seven names which
are otherwise valid but require taxonomic clarification due to inadequate original
descriptions) are included and examined in the checklist for analytic purposes, while
noting (as explained by ICZN 1999, Article 23.9.6) that the inclusion of these names
should not later be considered as new usages.
We have taken this opportunity to investigate type localities of all the species, and
to geolocate them to modern standards if possible. Prior to satellite-based navigation
only vessel-based collections were likely to provide type-locality geolocations, and the
descriptions used to pinpoint coastal sites could be vague or problematic. For instance
Treadwell (1939: 164) gave an update that the “precise position” of his Mayagüez Bay
station 6062 of 1902 could be relocated based on using a red buoy at the harbour
feminine Hydroides
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entrance as a reference point, but we are doubtful of the 100 year longevity of this
buoy. We have been able to suggest placements for at least three species for which only
a vague location was previously available. Type localities are mapped to show the world
distribution.
Methods
The checklist is based on a review of original literature for all Hydroides species-group
names, and a review of about 250 Hydroides-related name records at WoRMS (Read
and ten Hove 2016). Under Code Article 34.2 (ICZN 1999), prior usages in literature
are not required—here we simply formulate and present correct spellings. Gender
agreement is mandatory, which means that non-agreeing scientific names strictly do not
exist as valid spellings, and can be updated without explanation (to the bewilderment
of many in the past, so we strongly advise annotation of new gender-spelling variants
to avoid uncertainty). It is also worth noting that, while gender-agreement variants
obviously are minor spelling changes, the Code is worded so that these different
spellings are not treated as separate usages under prevailing usage rules.
All original literature for Hydroides names was examined. Names as given are our
derivations of correct endings for gender agreement, and are followed as necessary
with the original binominal combination and comments on current status. The
etymology (author’s and/or interpreted dictionary entries) is given, followed by our
evaluation of the type of name (adjective, invariant noun in apposition, etc.) from
available information. The derivation of names is unambiguous when authors give
full etymologies, but this is rare for old names, and often sketchy for modern ones.
Derivations are frequently only evident by matching likely character states mentioned,
and occasionally there seems no obvious basis for the name chosen. The sources we
have used to study derivations include online dictionaries and meta Greek/Latin
language resources (Harper’s Etymonline; Logeion; Lexilogos), the Lewis and Short
(1891) Latin dictionary (print, also online), as well as analytical dictionaries on the
classical languages in science (Brown 1956; Stearn 1983). We have included the current
subjective synonyms at WoRMS (if any) of each name (and their type localities), but
have not included the other superseded recombinations, nor any misspellings of the
valid name (these are fully listed at WoRMS and links to the current and original
name records at WoRMS are in the Suppl. material 1 which also summarises the name
analysis).
The type locality names have been investigated and their geolocations are included,
usually derived by retrospective georeferencing. They are mapped to place the original
discoveries in a geographic context and to locate where topotype material could be
sought. Current place-names were geolocated using several web-based gazetteers (e.g.,
GeoNames, GEOLocate, Marineregions (WoRMS), Wikipedia). Disused historic
names were sought via general web searches and Wikipedia. Holotype georeference
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Geoffrey B. Read et al. / ZooKeys 642: 1–52 (2017)
information in online collections databases and in subsequent publications was
evaluated if available (these data can be based on retrospective approximations,
rather than information supplied by authors on labels). Occasionally modern authors
have published geolocations that are obviously imprecise or displaced, and we have
pointed these out. The point-geolocations of the older taxa are our informed coastal
assignments (indicated as map estimates) if derived from place-names which are towns,
islands, or occasionally only known as strips of coast or other imprecise geographic
extents. Sometimes positioning was assisted by further information from or about
authors. A few times we were unable to narrow the collection site to any point and we
indicate when we have given a general geolocation instead. We are unable to calculate
the uncertainties (in extent) of our derived coordinates, and caution that each is
a precise point location of the possible site, the nearest logical coastal geolocation
at this time, as adjusted with satellite image overlay of terrain using the Wikipedia
GeoLocator mapping tool. A list of geolocations is in the Suppl. material 1.
Results
Checklist of Hydroides species original names
Family SERPULIDAE Rafinesque, 1815
Hydroides Gunnerus, 1768
Type species. Hydroides norvegica Gunnerus, 1768 (original binomen)
Includes Eupomatus Philippi, 1844, type species E. uncinatus Philippi, 1844 (by subsequent designation), Eucarphus Mörch, 1863 (as Hydroides (Eucarphus)), type species
uncertain (full synonymy in WoRMS)
Hydroides adamaformis Pillai, 2009 (original binomen)
Etymology: The author states the name for H. adamaformis is derived from Latin
adamas ‘diamond’ in reference to the diamond-shaped appearance of the verticil spines
“although their distal ends are curved inwards”. The suffix -formis ‘shaped’ is used to
form an adjective.
Evaluation: Masculine/feminine invariant adjective (formis, neuter forme) (Stearn
1983: 94).
Type locality: Lucas Island (south west corner), near Dampier Archipelago, Kimberley
region, Western Australia.
Geolocation: -15.2167°, 124.5167° (author, but is east of Lucas).
WoRMS: 555194
Synonyms: No subjective synonyms.
feminine Hydroides
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Hydroides affinis (Marion, 1875) (originally as Eupomatus affinis)
Status: Name now disused and representing a species inquirenda possibly senior to
Hydroides helmata (Iroso, 1921).
Etymology: Not stated, but E. affinis is named from the Latin adjective affinis ‘related to’.
Evaluation: Masculine/feminine invariant adjective (affinis -e) (Stearn 1983: 94).
Type locality: Golfe de Marseille, France, Mediterranean Sea. No further precision,
but likely to be coastal close to Marseille, possibly at or near Île Ratonneau, which the
author mentions frequently (Marion and Bobretzky 1875). However, a stone pier off
Arenc, Marseille is also mentioned (as Hydroides uncinata habitat).
Geolocation: 43.2872°, 5.3143° (map estimate, Île Ratonneau).
WoRMS: 383237
Synonyms: As species inquirenda has no synonyms although H. helmata has been suggested
(Zibrowius 1971: 713–714).
Hydroides alatalateralis (Jones, 1962) (originally as Eupomatus alatalateralis)
Etymology: The author states that E. alatalateralis is named for “limbations that are to
be found on the sides of the spines of the distal opercular circlet”, thus combining the
Latin adjectives alata ‘furnished with wings’ and lateralis ‘lateral’.
Evaluation: Masculine/feminine invariant adjective (lateralis -e) (Stearn 1983: 94).
Type locality: Port Royal, Jamaica, Caribbean Sea.
Geolocation: 17.9369°, -76.8439° (map estimate).
WoRMS: 369228
Synonyms: No subjective synonyms.
Hydroides albiceps (Grube, 1870) (originally as Serpula (Eupomatus) albiceps)
Etymology: Not stated, but S. albiceps may be named for the operculum album mentioned by Grube (1870: 521) by combining the Latin adjective albus ‘white’ with -ceps
derived from Latin noun caput ‘head’.
Evaluation: Noun in apposition (cf. noun ‘quadriceps’), or if treated as adjectival -ceps
endings are invariant.
Type locality: ‘Tor’ (El Tor), Gulf of Suez, Red Sea.
Geolocation: 28.2365°, 33.6130° (map estimate).
WoRMS: 130997
Synonyms: Hydroides spiratubus Pillai, 2009 (Fenelon Island, Kimberley, Australia)
Serpula (Hydroides) multispinosa ternatensis Fischli, 1903 (Ternate, Indonesia)
Hydroides amri Sun, Wong, ten Hove, Hutchings, Williamson & Kupriyanova,
2015 (original binomen)
Etymology: The authors state the name for H. amri is in honour of the Australian
Museum Research Institute (AMRI).
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Geoffrey B. Read et al. / ZooKeys 642: 1–52 (2017)
Evaluation: Invariant non-Latinized noun in apposition ‘amri’ from an acronym, pronounced as a single word, not letter by letter as if an initialism (ICZN 1999, Article 11.3).
Type locality: Bass Point south, south of Wollongong, NSW, Australia.
Geolocation: -34.6033°, 150.8953° (authors).
WoRMS: 852781
Synonyms: No subjective synonyms.
Hydroides ancorispina Pillai, 1971 (original binomen)
Etymology: Not stated, but H. ancorispina may be named from Latin nouns ancora
‘anchor’, spina ‘thorn’, referring to the fact that both radii and verticil spines have
anchor shaped tips.
Evaluation: Invariant noun in apposition.
Type locality: Wellawate, Colombo, Sri Lanka.
Geolocation: 6.8746°, 79.8569° (map estimate).
WoRMS: 328434
Synonyms: No subjective synonyms.
Hydroides arnoldi Augener, 1918 (original binomen)
Etymology: Not stated, but H. arnoldi is evidently named after one of its collectors,
Arnold Schultze.
Evaluation: Invariant genitive noun arnoldi from modern personal name of Arnold.
Type locality: Reported as two worms from two collection sites, Lome, Togo and Isla
Annobón, Equatorial Guinea, both in Gulf of Guinea, West Africa. However, only
the Annobón occurrence remains in H. arnoldi (see WoRMS for further explanation).
Geolocation: -1.4063°, 5.6373° (Annobón, map estimate).
WoRMS: 338000
Synonyms: No subjective synonyms.
Hydroides augeneri Zibrowius, 1973 (original binomen)
Etymology: Not stated, but H. augeneri is evidently named after Hermann Augener.
Evaluation: Invariant genitive noun augeneri from modern personal name of Augener.
Type locality: “Malembe” in Zaire (now Democratic Republic of Congo), but a coastal
instance of the name could not be found, either in DR Congo or its neighbours. Zaire
(DR Congo) has a very narrow access to the coast, and a coastal georeference was
derived from “Vista”, the only other named collection site.
Geolocation: -5.8763°, 12.283° (map estimate for Vista).
WoRMS: 328435
Synonyms: No subjective synonyms.
feminine Hydroides
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Hydroides azorica Zibrowius, 1972b (original binomen)
Etymology: Not stated, but evidently H. azorica is named after the Azores archipelago
where collected.
Evaluation: Latinized adjectival form azorica with correct feminine ending. H. ‘azoricus’
usages exist (e.g., Bellan 2001).
Type locality: On shipwreck “Doria” east of Ponta Delgada port, Ilha de Sao Miguel,
Açores (Azores).
Geolocation: 37.7410°, -25.6478° (map estimate).
WoRMS: 328436
Synonyms: No subjective synonyms.
Hydroides bandaensis Zibrowius, 1972a (original binomen)
Etymology: Not stated, but evidently H. bandaensis is named after the Banda Islands
where collected.
Evaluation: Masculine/feminine invariant ‘-ensis’ adjective created from non-Latin
geographic name Banda.
Type locality: Banda Islands (exact location unknown), Banda Sea, Indonesia.
Geolocation: -4.525°, 129.9089° (gazetteer, for Banda Islands).
WoRMS: 369229
Synonyms: No subjective synonyms.
Hydroides bannerorum Bailey-Brock, 1991 (original binomen)
Etymology: The author named H. bannerorum after biologists Albert H. (Hank) and
Dora May (Dee) Banner.
Evaluation: Invariant plural genitive adjective bannerorum from Banner family name.
Type locality: Near Banners Point (Kalaeloa) sewage outfall, near Pearl Harbour,
Oahu, Hawaii, Pacific Ocean.
Geolocation: 21.2719°, -158.1213° (map estimate).
WoRMS: 328437
Synonyms: No subjective synonyms.
Hydroides basispinosa Straughan, 1967a (originally as H. basispinosus)
Status: The synonymy of H. basispinosa and H. gradata Straughan, 1967a with
H. operculata Treadwell, 1929 was re-confirmed by Sun et al. (2015: 63), but is
being re-examined, and we provisionally include the H. basispinosus original name
analysis separately.
Etymology: Not stated, but the compound name for H. basispinosus means ‘spinypedestal’ as derived from Latin (originally Greek) feminine noun basis ‘pedestal’ and
adjective spinosus -a -um ‘spiny’. Basal internal spinules on opercular spines are mentioned (not figured).
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Geoffrey B. Read et al. / ZooKeys 642: 1–52 (2017)
Evaluation: Gender-variable adjective (in practice). Elsewhere in the article Straughan
used feminine adjectival new species names, and in relation to the basal spinules
Straughan probably intended another adjectival compound name. Her error in gender
ending can be corrected to ‘-spinosa’. However, she used the feminine Latin noun ‘basis’
(pedestal), not the adjectival ‘basalis’ (basal) which would have become ‘basalispinosa’.
If a noun phrase with a feminine noun then ‘basispinosus’ was incorrect Latin (it should
also have been ‘basispinosa’), and the original spelling must be maintained (ICZN
1999, Article 31.2.1). While this can be noted, Straughan is not the only author to
adopt ‘basis’ as if adjectival, and it seems best not to apply the strictest interpretation
here. Usage as ‘basispinosa’ already exists (e.g., Sun et al. 2015: 63).
Type locality: Mouth of Ross River, Townsville, Queensland, Australia.
Geolocation: -19.2569°, 146.8494° (map estimate).
WoRMS: 881640
Synonyms: See H. operculata comments.
Hydroides bifurcata Pixell, 1913 (originally as H. bifurcatus)
Etymology: Not stated, but the name for H. bifurcata is adjectival from Latin furcatus
‘forked’, likely referring to the bifid verticil spines.
Evaluation: Gender-variable adjective. The original incorrect masculine ending as
H. bifurcatus, repeated in Day (1951: 64), was silently corrected to ‘bifurcata’ in Day
(1967: 808).
Type locality: Minicoy/Maliku (as Minikoi), south Lakshadweep archipelago, north of
the Maldive Islands.
Geolocation: 8.2854°, 73.0673° (map estimate).
WoRMS: 873900
Synonyms: No subjective synonyms.
Hydroides bisecta Imajima & ten Hove, 1989 (originally as H. bisectus)
Etymology: Not stated, but H. bisecta is likely named based on bisectus ‘bisected’, a
New Latin past participle used as an adjective, derived from Latin bis ‘two’, secare ‘to
cut’, and referring to the bifid tips of verticil spines.
Evaluation: Gender-variable adjective, corrected herein to ‘bisecta’.
Type locality: off Sesoko Marine Station, Sesoko Island, Okinawa Islands, Japan.
Geolocation: 26.6365°, 127.8661° (map estimate).
WoRMS: 880526
Synonyms: No subjective synonyms.
Hydroides bispinosa Bush, 1910 (original binomen)
Etymology: Not stated, but the name for H. bispinosa is likely referring to the pair of
lateral spinules on the verticil spines described by Bush, based on Latin bis ‘two’ with
adjective spinosus ‘spined’. Bush compared H. bispinosa with H. multispinosa.
feminine Hydroides
11
Evaluation: Gender-variable adjective with correct original feminine ending. Usage as
‘bispinosus’ exists (e.g., Bastida-Zavala and ten Hove 2002: 125).
Type locality: Bermuda. The Yale Peabody Museum type (syntype? YPM IZ 001367.AN)
from the Verrill Bermuda Expedition in 1898, evidently has no further location data, but
Castle Harbour is a collection site mentioned by Bush (1910).
Geolocation: Imprecisely known (possible place of origin, Castle Harbour, 32.3472°,
-64.6872°, Bermuda).
WoRMS: 421083
Synonyms: No subjective synonyms.
Hydroides brachyacantha Rioja, 1941a (original binomen)
Etymology: Not stated, and the description of H. brachyacantha does not indicate
why the name derives from Greek βραχυ (brachy) ‘short’, ακανθα (akantha) ‘spine’,
feminine noun, thus short-spine. In New Latin acantha has frequently been used
as part of feminine compound names in both genera and species-group names. An
identical spelling might be expected to be a noun form in both, but species-group
names ending as -acantha -acanthus have regularly been treated as Latinized Greek
adjectives, and that may have been the intention of the author.
Evaluation: Gender-variable adjective with correct feminine ending. Usages as ‘brachyacanthus’ exist (e.g., Bastida-Zavala and ten Hove 2003: 73).
Type locality: Marina Mazatlán, Mazatlán, Sinaloa, Gulf of California, Mexico.
Geolocation: 23.2797°, -106.4611° (original author, with neotype of Sun et al. (2016:
49) from the same geolocation).
WoRMS: 328441
Synonyms: No subjective synonyms.
Hydroides bulbosa ten Hove, 1990 (originally as H. bulbosus)
Etymology: Not stated, but H. bulbosa is evidently named for the bulbous (Latin
bulbosus -a -um) dorsal verticil spine.
Evaluation: Gender-variable adjective, corrected herein to ‘bulbosa’.
Type locality: Khor Ghubb ’Ali, Musandam Peninsula, Oman, Strait of Hormuz, in a
sheltered bay at 18 m.
Geolocation: 26.2633°, 56.3572° (map estimate).
WoRMS: 882354
Synonyms: No subjective synonyms.
Hydroides calopoma Zibrowius, 1973 (original binomen)
Etymology: Not stated, but the name for H. calopoma is a compound noun which may
be referring to the operculum, from Greek καλος (kalos) ‘beautiful’, πωμα (poma) ‘lid’.
Evaluation: Invariant noun in apposition (indeclinable because ending in a transliterated Greek word).
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Geoffrey B. Read et al. / ZooKeys 642: 1–52 (2017)
Type locality: Isla Tortuga, off Isla Annobón, Equatorial Guinea, Gulf of Guinea.
Geolocation: -1.4055°, 5.6562° (map estimate).
WoRMS: 369230
Synonyms: No subjective synonyms.
Hydroides capensis Zibrowius, 1972b (original binomen)
Etymology: Not stated, but H. capensis is evidently named after the Cape Provinces of
South Africa.
Evaluation: Masculine/feminine invariant ‘-ensis’ adjective created from non-Latin
geographic name.
Type locality: Offshore from Lambert’s Bay, north of Cape Town, western coast of
South Africa.
Geolocation: -32.0833°, 17.9333° (author).
WoRMS: 338003
Synonyms: No subjective synonyms.
Hydroides chilensis Hartmann-Schröder, 1962 (original binomen)
Etymology: Not stated, but H. chilensis is evidently named after the country of collection.
Evaluation: Masculine/feminine invariant ‘-ensis’ adjective created from non-Latin
geographic name.
Type locality: Arica (coastal port city), Chile.
Geolocation: -18.4815°, -70.3333° (map estimate).
WoRMS: 328444
Synonyms: No subjective synonyms.
Hydroides crucigera Mörch, 1863 (originally as Hydroides (Eucarphus) crucigera)
Etymology: Not stated, but the name for H. crucigera is likely referring to the verticil
spines, which are cross-bearing, from feminine Latin noun crux, crucis ‘cross’, with
Latin suffix ger, gera ‘to bear’.
Evaluation: Gender-variable adjective with correct original feminine ending. Usages
as incorrect suffix ‘crucigerus’ and as masculine ‘cruciger’ exist (e.g., de León González
1990: 336, Bastida-Zavala and ten Hove 2003: 78). Names ending in -ger may be
nouns or masculine adjectives (ICZN 1999, Article 31.2.2). The usage of Mörch was
adjectival as he used feminine -gera.
Type locality: Puntarenas, Gulf of Nicoya, Costa Rica Pacific coast (Mörch, 1863 as
“oceano pacifico, juxta Puntarenas”).
Geolocation: 9.9739°, -84.8330° (map estimate).
WoRMS: 333637
Synonyms: Hydroides californicus [sic] Treadwell, 1929 (“Lower California” (Baja
California) Mexico)
feminine Hydroides
13
Hydroides dafnii (Amoureux, Rullier & Fishelson, 1978) (originally as Eupomatus
dafnii)
Etymology: Not stated, but Eupomatus dafnii as “trouvé par Mr. Dafni” is evidently
named after the collector, Yaacob Dafni (Amoureux et al. 1978: 60, 148).
Evaluation: Invariant genitive form dafnii of the modern personal name Dafni.
Type locality: Eilat, Gulf of Aqaba (of Eilat), Israel, Red Sea, on reef coral. The site is
mapped by the authors, but not georeferenced.
Geolocation: 29.5266°, 34.9377° (map estimate).
WoRMS: 369231
Synonyms: No subjective synonyms.
Hydroides deleoni Bastida-Zavala & ten Hove, 2003 (original binomen)
Etymology: The authors state H. deleoni is named after Jesús A. de León-González.
Evaluation: Invariant genitive form deleoni constructed from the personal name
de Leon.
Type locality: Punta San Juanico, Western coast of Baja California Sur, Mexico.
Authors’ georeference (26°13'N, 112°13'W, inland, ~26 km off target) is herein
corrected to 26°15'9"N, 112°28'33"W).
Geolocation: 26.2524°, -112.4757° (San Juanico, map estimate).
WoRMS: 328445
Synonyms: No subjective synonyms.
Hydroides dianthus (Verrill, 1873) (originally as Serpula dianthus)
Etymology: Verrill (1873: 28) states for S. dianthus that the name alludes to the resemblance to Dianthus flowers as the colours of its branchiae “recalls the varied hues and
forms of different kinds of pinks, (Dianthus.)”. The botanical generic name Dianthus
(flower of Zeus) is New Latin (Linnæus and earlier) from Greek Δηοσ (Dios), genitive
of Zeus, and ανθος (anthos) ‘flower’. As Serpula is feminine and dianthus is masculine
it seems Verrill intended the name as a noun (Actinia dianthus Ellis, 1768 is an earlier
similar pairing).
Evaluation: Invariant noun in apposition.
Type locality: Great Egg Harbor to New Haven and Cape Cod, Atlantic coast USA.
Geolocation: Unknown (New Haven, 41.2520°, -72.9086°, as a central possible place
of origin on Atlantic coast USA).
WoRMS: 131000
Synonyms: Possibly Hydroides hexagonus sensu Pratt, 1916 and others [non Bosc, 1802]
Serpula dianthus citrina Verrill, 1873 (for Verrill’s colour variant specimens)
Hydroides (Eupomatus) dianthoides Augener, 1922 [partim, fide Bastida-Zavala and ten
Hove 2002: 143) (Haiti, Caribbean Sea)
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Geoffrey B. Read et al. / ZooKeys 642: 1–52 (2017)
Hydroides diplochone (Grube, 1878a) (originally as Serpula (Hydroides) diplochone)
Status: Name now disused and representing a species inquirenda. A single subsequent
valid usage of the name was later identified as an occurrence of Hydroides ezoensis (a
junior name), but it is uncertain that Grube’s original serpulid (type missing) was the
same (fide Zibrowius 1978: 144; Sun et al. 2015: 37).
Etymology: Not stated, but the name for Serpula diplochone derives from Greek
Latinized as diplos ‘two-fold’ and feminine Greek noun χοάνη (choani) ‘funnel’, thus
double funnel, evidently in reference to the two-tier operculum that Grube describes
(a generic character). There are no other names based on chone in Serpulidae, but it is
part of several generic names in Sabellidae.
Evaluation: Invariant noun in apposition.
Type locality: Askold Island, outer Peter the Great Gulf, North Japan Sea. We infer
this to be the type locality. Grube does not present location information beyond that
the material was from “nordjapanischen Meeres”, but it is also mentioned that the
collector was the Siberian-based Polish naturalist Dybowski, whose travels in the region
are documented. In 1874 Benedykt Dybowski collected fauna at Askold Island, near
Vladivostok, Primorsky Krai (fide Zoological Museum, University of Lliv [no date]).
Geolocation: 42.7333°, 132.3333° (map estimate, Askold Island).
WoRMS: 333639
Synonyms: As species inquirenda has no synonyms, although H. ezoensis has been suggested.
Hydroides dipoma (Schmarda, 1861) (originally as Eupomatus dipoma)
Etymology: Not stated, but in the description for Eupomatus dipoma Schmarda (1861:
29) describes in Latin “Operculum duplex infundibuliforme” (double funnel lid) and
in German “Das Thier hat zwei Deckel” (has two lids), evidently referring to the two
opercula figured in his plate, and based on Greek δις (dis) ‘twice’, and πωμα (poma)
‘cap’ (see ten Hove and Ben-Eliahu (2005) for an analysis of records of bi-operculate
specimens in Hydroides).
Evaluation: Invariant compound noun in apposition (indeclinable because ending in
a transliterated Greek word).
Type locality: Cape of Good Hope, South Africa (“Vorgebirge der Guten Hoffnung”).
Geolocation: -34.3583°, 18.4725° (Cape of Good Hope (gazetteer), although
Schmarda more likely was indicating a general coastal area).
WoRMS: 369232
Synonyms: Eupomatus spinosus Pixell, 1913 (Gulf of Suez)
Hydroides uncinatus macronyx Ehlers, 1913 (Simonstown, False Bay, South Africa)
Hydroides dirampha Mörch, 1863 (originally as H. (Eucarphus) dirampha)
Etymology: Not stated, but for H. dirampha Mörch describes “utrinque inflexione obsoleta, unde lateraliter adunco-rostrato” (rudimentary bend both sides, hence laterallycurved beak), with the Latinization dirampha evidently referring to the twin sharp lateral points of the blunt tip of the verticil spines, ultimately from Greek δις (dis) ‘twice’,
feminine Hydroides
15
and ραμφος (rampos) ‘beak’, the latter modified through New Latin masculine noun
forms rhamphus and the lesser-used ramphus (both with a number of usages as part of
compound genus names) to rampha, a usage seemingly unique to Mörch.
Evaluation: Treated here as an invariant noun in apposition, because an incorrect Latinization. While Mörch consistently modified his Hydroides names as feminine, and
the name seems intended as feminine adjectival rather than a noun, it looks like a misspelled Latinization which should be left unaltered. Usages in Hydroides as ‘diramphus’
exist (e.g., Bastida-Zavala and ten Hove 2002: 161).
Type locality: Saint (St.) Thomas Island, United States Virgin Islands, Lesser Antilles
(“in portu urbis St. Thomae Antillarum”), most likely the Saint Thomas port town of
Charlotte Amalie.
Geolocation: Imprecisely known (near to 18.34°, -64.92° if harbour at Charlotte Amalie,
St Thomas Island).
WoRMS: 131001
Synonyms: Eucarphus serratus Bush, 1910 (Bermuda, western Atlantic)
Eupomatus lunulifer Claparède, 1870a (Gulf of Naples, Italy, Tyrrhenian Sea)
Hydroides (Eucarphus) benzoni Mörch, 1863 (Bahia coast, Brazil)
Hydroides (Eucarphus) cumingii Mörch, 1863 (Philippines unspecified)
Hydroides (Eucarphus) cumingii navalis Mörch, 1863 (New Zealand unspecified)
Hydroides malleophorus [sic] Rioja, 1942 (Mazatlán, Gulf of California, Mexico Pacific coast)
Hydroides dolabrus Tovar-Hernández, Villalobos-Guerrero, Kupriyanova &
Sun, 2016 (original binomen)
Etymology: The authors state for H. dolabrus that “dolabrus is from the Latin dolabra,
a sort of pickaxe that resembles the shape of the verticil spines”.
Evaluation: Invariant noun in apposition. The Latin dolabra is a feminine noun, and
cannot become a masculinised adjective as ‘dolabrus’ to match a masculine Hydroides.
This is not a word as listed in classical Latin dictionaries, and should be considered as
an invariant combination of letters. A suitable adjectival equivalent would have been
dolabratus -ata.
Type locality: Mazatlan Marina, Mazatlan, Gulf of California, Mexico Pacific coast.
Geolocation: 23.2798°, -106.4611° (authors).
WoRMS: 851651
Synonyms: No subjective synonyms.
Hydroides elegans (Haswell, 1883) (originally as Eupomatus elegans)
Status: The much-used name H. elegans is nomen protectum with respect to nomen
oblitum H. abbreviata Krøyer [in] Mörch, 1863 (Bastida-Zavala and ten Hove, 2002).
Etymology: Not stated, but the Eupomatus elegans name is likely derived from the
Latin adjective elegans -antis (genitive) ‘elegant’.
Evaluation: Invariant adjective (masculine/feminine/neuter ‘-ans’).
Type locality: Port Jackson, NSW, Australia (not further specified).
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Geoffrey B. Read et al. / ZooKeys 642: 1–52 (2017)
Geolocation: -33.8456°, 151.2622° (gazetteer).
WoRMS: 131002
Synonyms: Hydroides abbreviata Krøyer [in] Mörch, 1863 [nomen oblitum] (Saint
Croix island, Virgin Islands, Caribbean Sea)
Hydroides incrustans Monro, 1938 (Shoreham Harbour Canal, Sussex, England)
Hydroides pacificus Hartman, 1969 (Velero station 1452-42, Ship hull & pier, Long
Beach, California)
Hydroides spinalateralis Straughan, 1967a (Shoal Point, Mackay, Queensland, Australia)
Hydroides elegantula (Bush, 1910) (originally as Eupomatus elegantulus)
Etymology: Not stated, but the E. elegantulus name is likely derived from Latin
adjective elegans -antis ‘elegant’, combined with the Latin suffix -ulus, a male diminutive
adjectival form.
Evaluation: Gender-variable adjective, corrected in Hydroides to feminine ‘elegantula’
by Zibrowius (1971: 695).
Type locality: Bermuda. The Yale Peabody Museum holotype YPM IZ 001323.AN
from the Verrill Bermuda Expedition in 1898, evidently has no further location data,
but Castle Harbour is a collection site mentioned by Bush (1910).
Geolocation: Imprecisely known (possible place of origin, Castle Harbour, 32.3472°,
-64.6872°, Bermuda).
WoRMS: 873929
Synonyms: No subjective synonyms.
Hydroides euplaeana (Delle Chiaje, 1828) (originally as Sabella euplaeana)
Status: Name now disused and representing a species inquirenda that has been
compared to H. pseudouncinata Zibrowius, 1968. It is not a candidate nomen oblitum
(used as valid by Zibrowius, 1972c: 116–117). If suppression is desirable prevailing
usage of H. pseudouncinata would be maintained (ICZN 1999, Recommendation
23A).
Etymology: Not stated, but Sabella euplaeana was evidently named after the Latin
name for Caiola Island, Naples, where Delle Chiaje states it was collected. Caiola is
modern day Gaiola, in Roman times known as Euplaea. The name as combined with
feminine adjectival suffix -ana indicates from Euplaea.
Evaluation: Gender-variable geographical Latin adjective (-anus, -ana) from placename, with correct original feminine ending.
Type locality: Caiola (Gaiola/Euplaea) Island, Naples, Italy, Tyrrhenian Sea,
Mediterranean.
Geolocation: 40.7917°, 14.1869° (map estimate).
WoRMS: 381073
Synonyms: As species inquirenda has no synonyms, although H. pseudouncinata has
been suggested.
feminine Hydroides
17
Hydroides exaltata (Marenzeller, 1885) (originally as Eupomatus exaltatus)
Etymology: Not stated, but Marenzeller (1885: 217) described the character of the opercular
verticil spines for E. exaltatus as being elevated on a central column (“einer centralen
Säule”). The Latin exaltatus ‘(up) lifted’ species-group name is perhaps in reference to this.
Evaluation: Gender-variable adjective, corrected to feminine ‘exaltata’ as recombined
(e.g., Imajima 1976b: 232). Usages in Hydroides as ‘exaltatus’ exist (e.g., Dew 1959: 27).
Type locality: East coast of Enoshima Island (“Ostküste der Insel Eno-sima”), Sagami
Bay, Honshu, Japan. There is an Enoshima-rettō Island, also off Honshu, but the
Sagami Bay Enoshima Island (only ~0.5 km long) is the most likely visited.
Geolocation: 35.3008°, 139.4839° (map estimate).
WoRMS: 873938
Synonyms: No subjective synonyms.
Hydroides exaltata vesiculosa Fauvel, 1919 (originally as H. exaltatus var. vesiculosus)
Status: Name now disused and representing a species inquirenda. Similarities of the original
description to Hydroides albiceps have been noted, but the name is yet to be synonymised.
Etymology: Not stated, but H. exaltata vesiculosa was evidently named for its vesicular
dorsal verticil spine.
Evaluation: Gender-variable adjective with incorrect original ending, corrected to feminine (e.g., Monro 1937: 316).
Type locality: Gatavaké (Baie de Gatavaké), Mangareva Island, Mangareva/Gambier
Islands, French Polynesia, South Pacific.
Geolocation: -23.1188°, -134.9798° (map estimate).
WoRMS: 875068
Synonyms: As species inquirenda has no synonyms.
Hydroides externispina Straughan, 1967b (original binomen)
Etymology: Not stated, but for H. externispina it is likely the Latin spina ‘thorn’ refers
to the external (curved outwards) spines of the verticil.
Evaluation: Invariant noun in apposition.
Type locality: Heron Island, Queensland, Australia, collected close to the marine station
by Dew (map in Straughan 1967b).
Geolocation: -23.4430°, 151.9110° (map estimate).
WoRMS: 328446
Synonyms: No subjective synonyms.
Hydroides ezoensis Okuda, 1934 (original binomen)
Etymology: Not stated, but H. ezoensis is evidently named after its area of collection,
as Ezo (also as Yezo) is a former name for the island of Hokkaido, Japan. The speciesgroup name ‘ezoensis’ has often been used for Japanese taxa, along with ‘yezoensis’.
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Geoffrey B. Read et al. / ZooKeys 642: 1–52 (2017)
Evaluation: Masculine/feminine invariant ‘-ensis’ adjective created from non-Latin
geographic name.
Type locality: Not fixed by author. Original records are from “Akkeshi, Muroran, and
Oshoro”, which are widely separated places around the coast of Hokkaido Island, with
the first two having marine stations.
Geolocation: Imprecisely known (possibly as 43.0209°, 144.8368° for Akkeshi Marine
Station).
WoRMS: 131003
Synonyms: See comments for H. diplochone.
Hydroides floridana (Bush, 1910) (originally Eupomatus floridanus, new name
for Eupomatus uncinatus non Philippi sensu Ehlers, 1887)
Etymology: Not stated, but E. floridanus is evidently named after its purported region
of collection. ‘Florida’ is Spanish for flowery land and is here combined with the Latin
adjectival suffix -anus -a -um, indicating from Florida.
Evaluation: Gender-variable adjective based on a non-Latin geographic name, corrected to feminine herein. Usages in Hydroides as ‘floridanus’ exist (e.g., Bastida-Zavala
and ten Hove 2002: 118) but not previously as ‘floridana’.
Type locality: Unknown, not certain to be off namesake Florida. When Ehlers (1887:
286) described the Polychaeta collected from voyages of Coast Survey Steamer “Blake”
he wrote in his native German but recorded the two locations for the Eupomatus
specimens literally in English as “inside fishing ground Cape Rear” and also “off
W. down Cape Dear Rio” (both at 7 fathoms). However, these place-names seem
to be misreadings as they could not be found in the Caribbean or Florida, nor do
the “Blake” voyage reports include the names. The similarity of names suggests the
location is possibly off Cape Fear, North Carolina, with its associated Cape Fear (Rio)
River, disregarding that Ehlers’ monograph title appears to exclude Atlantic coast
voyages the “Blake” also made. As the types are believed lost the original label cannot
be checked. No specimens are currently listed in the Yale Peabody Museum online
catalogue although Bush (1910: 498) earlier saw a mass of several hundred tubes,
indicating an aggregation.
Geolocation: Unknown (if off Cape Fear, North Carolina then that place-name is at
(gazetteer) 33.84°, -77.96°).
WoRMS: 369234
Synonyms: Eupomatus decorus Treadwell, 1931 (Grand Isle, Louisiana, Gulf of Mexico)
Hydroides rostrata Iroso, 1921 [junior objective synonym (same specimen)]
Hydroides furcifera (Grube, 1878b) (originally as Serpula furcifera)
Etymology: Not stated but Grube described for S. furcifera forked spines in the opercular funnel as well as the verticil, thus Latin furca ‘fork’, combined with adjectival
feminine Hydroides
19
suffix -fer -a -um ‘bear’. Lewis and Short (1891: 795) include furcifera as a feminine
noun meaning phallus, but it is unlikely this was Grube’s intention. A more common
adjectival form would be furcillata ‘forked’.
Evaluation: Gender-variable adjective with correct original feminine ending. Names
ending in -fer may be nouns or masculine adjectives (ICZN 1999, Article 31.2.2
example). The usage of Grube was adjectival as he used feminine -fera. A listing-only
usage in Hydroides as ‘furcifer’ exists (ten Hove and Kupriyanova 2009: 53).
Type locality: “Ubay, Pandanon”, Philippines. Ubay (10.0606°, 124.4707°) is a small
port on Bohol Island, and Pandanon Island (10.1779°, 124.0839°) is a small reef
~45 km to the west of Ubay.
Geolocation: 10.0606°, 124.4707° (map estimate, Ubay).
WoRMS: 369235
Synonyms: Hydroides bifidus [sic] Imajima, 1982 (off Arumonogui, Palau Islands,
Micronesia)
Hydroides fusca Imajima, 1976a (original binomen)
Etymology: Not stated, but the species-group name for H. fusca from Latin fuscus
‘dark’ is evidently in reference to the “glossy black” verticil spines.
Evaluation: Gender-variable adjective with correct original feminine ending. A listingonly usage in Hydroides as ‘fuscus’ exists (ten Hove and Kupriyanova 2009: 53).
Type locality: Offshore east off northern tip of Tanegashima (island), Southern Japan,
80 m.
Geolocation: 30.8225°, 131.1335° (map estimate from author’s map).
WoRMS: 369236
Synonyms: No subjective synonyms.
Hydroides fusicola Mörch, 1863 (as H. (Eupomatus) fusicola)
Etymology: Not stated, but H. fusicola is evidently named after the gastropod genus
Fusus (now Fusinus) combined with -cola ‘dweller’, as it was found attached to a
‘Fuso’ sp.
Evaluation: Invariant compound noun in apposition with -cola as a substantival suffix. The Code has a stipulation (ICZN 1999, Article 30.1.4.2) that genera with -cola
endings be treated as masculine compound nouns (or mostly so treated, similar to the
-oides situation). It has no advice for species-group names with -cola suffixes, but they
are recommended to be treated similarly (David and Gosselin 2002: 34), not declined
to agree with the first noun or the genus.
Type locality: Japan (not further specified). Mörch only knew the specimen was from
the collection of Wessel in Hamburg.
Geolocation: Unknown (gazetteer Japan central point as 37°, 138°).
WoRMS: 369237
20
Geoffrey B. Read et al. / ZooKeys 642: 1–52 (2017)
Synonyms: Hydroides okudai Pillai, 1972 [nom. n. for “H. uncinata (sensu Okuda et
Uschakov)”] (location not fixed by author, but the Okuda (1937: 63) usage was for
Ishihama, Japan, a name for at least four possible Honshu coastal locations)
Hydroides gairacensis Augener, 1934 (originally as H. (Eupomatus) gairacensis)
Status: Candidate nomen protectum against senior name Hydroides (Eupomatus) dunkeri
Mörch, 1863 (fide Bastida-Zavala and ten Hove, 2002: 132). Prevailing usage maintained pending proof of sufficient usage of H. gairacensis, but H. dunkeri is a nomen
oblitum, not used as a valid name after 1899 (listings are excluded as usages under
ICZN 1999, Article 23.9.6).
Etymology: Not stated, but H. gairacensis is evidently named after its place of collection, Gairaca.
Evaluation: Masculine/feminine invariant ‘-ensis’ adjective created from a non-Latin
place-name.
Type locality: Gairaca, near Santa Marta, Caribbean Sea coast of Colombia.
Geolocation: 11.3184°, -74.1084° (map estimate).
WoRMS: 369238
Synonyms: Hydroides (Eupomatus) dunkeri Mörch, 1863 [nomen oblitum] (La Guayra,
Panama, Caribbean Sea)
Hydroides glandifera Rioja, 1941a (originally as H. glandiferum)
Status: Type taxon by monotypy of Olgaharmania Rioja 1941b, a synonym of Hydroides.
Etymology: Not stated, but as Rioja (1941a: 174) writes of “una robusta protuberancia
. . .en forma de glande” for H. glandifera, it is likely to be a functional name for
the bulbous dorsal verticil spine from Latin glans ‘acorn’ combined with adjectival
suffix -fer -a -um ‘bear’. It is unclear why Rioja (incorrectly) used the neuter form
‘glandiferum’ at first, but he later (Rioja 1941b: 733) modified the spelling for his
feminine Olgaharmania glandifera combination.
Evaluation: Gender-variable adjective with corrected feminine ending. Usages in Hydroides
as ‘glandifer’ and ‘glandiferum’ exist (e.g., Bastida-Zavala and ten Hove 2003: 89).
Type locality: Caleta (Playa Caleta), Acapulco, Mexico.
Geolocation: 16.8313°, -99.9031° (map estimate).
WoRMS: 338016
Synonyms: No subjective synonyms.
Hydroides glasbyi Sun, Wong, ten Hove, Hutchings, Williamson & Kupriyanova,
2015 (original binomen)
Etymology: The authors dedicated H. glasbyi to Christopher J. Glasby.
Evaluation: Invariant genitive form glasbyi of the personal name Glasby.
Type locality: Fort Hill Wharf, Darwin, Northern Territory, Australia.
feminine Hydroides
21
Geolocation: -12.4714°, 130.8467° (authors, 12°28'17"S, 130°50'48"E).
WoRMS: 852813
Synonyms: No subjective synonyms.
Hydroides gracilis (Bush, 1905) (originally as Eupomatus gracilis)
Etymology: Not stated, but the Latin gracilis ‘slender’ name for H. gracilis is likely
referring to the simple verticil spines.
Evaluation: Invariant adjective (masculine/feminine ‘gracilis’).
Type locality: Pacific Grove, California, Pacific coast USA.
Geolocation: 36.6236°, -121.9119° (map estimate).
WoRMS: 333640
Synonyms: Eupomatus intereans Chamberlin, 1919 (Laguna Beach, California coast)
Hydroides gradata Straughan, 1967a (original binomen)
Status: The synonymy of H. basispinosa and H. gradata Straughan, 1967a with H. operculata
Treadwell, 1929 was followed by Sun et al. (2015: 63), but is being re-examined, and we
provisionally include the H. gradata record separately.
Etymology: Not stated, but for H. gradata the Latin gradata ‘gradual’ is evidently
describing the gradual size change of the ring of opercular spines.
Evaluation: Gender-variable adjective with correct original feminine ending.
Type locality: Pretty Beach, 40 km north of Cairns, Queensland, Australia
Geolocation: -16.6111°, 145.5318° (map estimate).
WoRMS: 384604
Synonyms: See H. operculata comments.
Hydroides helmata (Iroso, 1921) (originally as Eupomatus helmatus)
Status: Zibrowius (1971: 713–714) synonymised an older name, Eupomatus affinis
Marion, 1875, under H. helmata. This is not possible on priority, nor does H. affinis
qualify as a nomen oblitum as it was used as valid (Zibrowius 1968: 115) post 1899. We
include both names (see entry for H. affinis as species inquirenda).
Etymology: Not stated, but E. helmatus is likely named after the larger helmet-like
dorsal verticil spine as Iroso (1921: 54) describes “che ricade sugli altri ad elmo” (which
falls on others [spines] helmet-like). Helm and helmet are not from Latin, though the
author’s construction appears to be intended as adjectival, with adjectival suffix -atus
added to mean helm-like.
Evaluation: Gender-variable adjective corrected to feminine in Hydroides in Zibrowius
(1971: 713).
Type locality: Unspecified Gulf of Naples (Golfo di Napoli), Italy.
Geolocation: Imprecisely known (a Golfo di Napoli mid-point (gazetteer) is 40.8°, 14.2°).
WoRMS: 131004
Synonyms: No subjective synonyms, but has been linked to H. affinis (see above).
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Hydroides heterocera (Grube, 1868) (originally as Serpula (Eupomatus) heterocerus)
Etymology: Not stated but the name for S. heterocerus is likely describing the dimorphism in verticil spines, from Greek hετεροσ (heteros) ‘different’ and κερασ (keras)
‘horn’. The Latinized heterocerus is an adjectival form to be declined.
Evaluation: Gender-variable adjective corrected to feminine in Zibrowius (1971: 715).
Grube (1868: 639) originally incorrectly created a masculine ‘heterocerus’ in agreeing
with the masculine subgenus Eupomatus rather than the feminine genus Serpula. Usages exist in Hydroides as ‘heterocerus’ (e.g., Ben Eliahu and ten Hove 2011: 26), and as
the misspelling ‘heteroceros’ (e.g., Day 1967: 807).
Type locality: Unspecified Red Sea. Grube’s report title refers to Red Sea worms collected by Georg Ritter von Frauenfeld. Grube states in his opening sentence that the
worms were handed to him without any other information, and it seems he did not
investigate this further. In the narrative of his visit von Frauenfeld (1855) mentions
Suez, the Sinai Peninsula, and seeing countless annelids on the Red Sea shore, but he
does not match observation to locality.
Geolocation: Imprecisely known, but perhaps northern Red Sea (a gazetteer Red Sea
mid-point is 20.3°, 38.6°).
WoRMS: 851900
Synonyms: No subjective synonyms. However, the misidentification Serpula (Hydroides)
uncinata non Philippi, sensu Gravier, 1906, has been assigned to H. heterocera (e.g.,
Pixell 1913: 75).
Hydroides heterofurcata Pillai, 1971 (original binomen)
Etymology: Not stated, but evidently H. heterofurcata is named because there are two
types of furcate verticil spines of the operculum (Pillai 1971: 114).
Evaluation: Gender-variable adjective with correct original feminine ending. Usages as
‘heterofurcatus’ exist (e.g., ten Hove and Kupriyanova 2009: 53).
Type locality: near Talaimannar Pier, Sri Lanka, 4 m depth.
Geolocation: 9.1079°, 79.7292° (map estimate from author map).
WoRMS: 328449
Synonyms: No subjective synonyms.
Hydroides hexagona (Bosc, 1802) (originally Serpula hexagona)
Status: A name disused by taxonomists and representing a species inquirenda. The original description and figure are rudimentary and the species Bosc saw will remain indeterminable unless original specimens are found (unlikely). However, the name cannot
be a nomen oblitum as it was revived as H. hexagonus [sic] in three widely used manuals
on invertebrates of the United States eastern coast (Pratt 1916, Grave 1937, Costello et
al. 1957). These instances should be considered misidentifications, and might be referable either to the junior name H. dianthus (fide Zibrowius 1971: 697, Bastida-Zavala
and ten Hove 2002: 108), or to other similar species. Nevertheless, there are multiple
feminine Hydroides
23
modern citations of the research on Hydroides sperm (e.g., Colwin and Colwin 1961)
in which the name appeared.
Etymology: Bosc described the tube of Serpula hexagona as “montrant la moitié d’un
prisme hexagone …”, and the name is a New Latin adjectival form for six-sided, modified from Greek. Bosc’s figure shows two ridges so the tube cross-section would be
trapezoidal, not literally hexagonal as named, but half (la moitié) of that.
Evaluation: Gender-variable adjective with correct feminine ending herein. Usages in
Hydroides as ‘hexagonus’ and ‘hexagonis’ exist (e.g., Pratt 1916: 302, Grave and Oliphant
1930: 234) but not previously as ‘hexagona’.
Type locality: Charleston Harbour, Charleston, South Carolina, Atlantic coast USA.
Geolocation: 32.8186°, -79.9279° (gazetteer).
WoRMS: 384606
Synonyms: As species inquirenda has no synonyms.
Hydroides homoceros Pixell, 1913 (original binomen)
Etymology: Not stated, but for H. homoceros it is likely that the Greek hομοσ (homos)
‘uniform’ and κερασ (keras) ‘horn’, refers to the opercular verticil spines. Pixell appears
to have named ‘homoceros’ as the opposite to ‘heteroceros’ (her error for the existing
‘heterocerus’) which she mentions.
Evaluation: Incorrect Latinization treated here as an unchanging noun in apposition.
Usages exist as ‘homocera’ (e.g., Ben-Eliahu and ten Hove 1992: 35) and ‘homocerus’
(e.g., Bellan 2001: 226).
Type locality: Multiple Indian Ocean localities as the syntypes (aggregated as only
one NHM specimen lot 1924.6.13.147 received from the Cyril Crossland Collection)
came both from the Maldive area (specified as Miladhunmadulu Atoll and Minikoi),
and from off Zanzibar.
Geolocation: Unknown (map estimate 6.02°, 73.19° for Noonu, the southern Miladhunmadulu Atoll).
WoRMS: 238212
Synonyms: No subjective synonyms.
Hydroides huanghaiensis Sun & Yang, 2000 (original binomen)
Etymology: Not stated, but H. huanghaiensis is evidently named after the sea in which
the worm was collected as “Huanghai” means Yellow Sea in Chinese.
Evaluation: Masculine/feminine invariant ‘-ensis’ adjective created from a non-Latin
geographic name, Huanghai.
Type locality: Northern Yellow Sea, off the Chinese coast near Dalian.
Geolocation: 39.00°, 122.1167° (as authors, 39°00'N, 122°70'E [? error for 7']).
WoRMS: 328450
Synonyms: No subjective synonyms.
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Hydroides humilis (Bush, 1905) (originally as Eupomatus humilis)
Etymology: Not stated, but for E. humilis possibly the name, from Latin humilis ‘humble’
(or ‘low’), is referring to the small size of the single specimen collected.
Evaluation: Masculine/feminine invariant adjective (humilis -e) (Stearn 1983: 94).
Type locality: Guaymas, Gulf of California coast, Sonora state, Mexico. Bush provides
no other details other than the name Guaymas (Mexico).
Geolocation: 27.9087°, -110.8931° (map estimate).
WoRMS: 369239
Synonyms: No subjective synonyms.
Hydroides inermis Monro, 1933 (original binomen)
Etymology: Not stated, but for H. inermis it is likely that the Latin inermis ‘unarmed’,
is referring to the verticil spines without spinules. Monro stated the operculum “lacks
spines both on the lower and the upper calix”.
Evaluation: Masculine/feminine invariant adjective (inermis -e).
Type locality: James Bay, Isla Santiago (was James Island), Galapagos, Ecuador.
Geolocation: -0.1959°, -90.8424° (map estimate).
WoRMS: 338017
Synonyms: No subjective synonyms.
Hydroides inornata Pillai, 1960 (original binomen)
Status: The current synonymy of H. inornata with H. operculata is being re-evaluated,
and meantime it is included separately here.
Etymology: Not stated, but for H. inornata it is likely that the Latin inornatus
‘unadorned’ is referring to the verticil spines without side spinules.
Evaluation: Gender-variable adjective with correct original feminine ending. Usages as
‘inornatus’ exist (e.g., Amoureux et al.: 57).
Type locality: Maha Alamba (not found, perhaps disused), “about a mile” from the
Negombo Lagoon entrance (an aquatic research institute is nearby), north of Colombo,
west coast of Sri Lanka.
Geolocation: 7.1945°, 79.8392° (map estimate).
WoRMS: 338018
Synonyms: No subjective synonyms, and has been regarded as junior to H. operculata
(e.g., Sun et al. 2015: 62).
Hydroides kimberleyensis Pillai, 2009 (original binomen)
Etymology: The author named H. kimberleyensis after the Kimberley region of Western
Australia.
Evaluation: Masculine/feminine invariant ‘-ensis’ adjective created from a non-Latin
geographic name.
feminine Hydroides
25
Type locality: Off east side of Fenelon Island (main island of Institut Islands) at 6 m,
Kimberley, Western Australia.
Geolocation: -14.1167°, 125.7167° (author).
WoRMS: 555195
Synonyms: No subjective synonyms.
Hydroides lambecki Bastida-Zavala & ten Hove, 2002 (original binomen)
Etymology: The authors named H. lambecki after Hugh J.P. Lambeck (entomologist,
deceased, one time assistant to ten Hove), who first noted this as a species different
from H. mongeslopezi.
Evaluation: Invariant genitive form lambecki of the personal name Lambeck.
Type locality: Vaarsenbaai (cove), Boca Sami, Curaçao, Netherlands Antilles.
Geolocation: 12.15°, -69.00° (gazetteer).
WoRMS: 328452
Synonyms: No subjective synonyms.
Hydroides lirs Kupriyanova, Sun, ten Hove, Wong & Rouse, 2015 (original binomen)
Etymology: The authors named H. lirs after the Australian Museum’s Lizard Island
Research Station (LIRS).
Evaluation: Invariant non-Latinized noun in apposition ‘lirs’ from an acronym, pronounced as a single word.
Type locality: Front of reef between Bird and South Islands, Lizard Island, Queensland,
Australia, -14.6978°, 145.4639° (station MI QLD 2354 in Ribas and Hutchings, 2015).
Geolocation: -14.6978°, 145.4639° (station list).
WoRMS: 877990
Synonyms: No subjective synonyms.
Hydroides longispinosa Imajima, 1976b (original binomen)
Etymology: Not stated, but H. longispinosa evidently is named after the “conspicuous,
long central spine” (long in comparison with H. elegans), based on Latin adjectives
longus ‘long’ with spinosus ‘spined’.
Evaluation: Gender-variable adjective with correct original feminine ending. Usages as
‘longispinosus’ exist (e.g., Bailey-Brock 1987: 282).
Type locality: Koniya, Amami-Oshima, Amami Islands, Southern Japan.
Geolocation: 28.1472°, 129.3078° (map estimate).
WoRMS: 328453
Synonyms: Hydroides centrospina Wu & Chen, 1981 (Yulin Harbour, Hainan Island,
South China Sea)
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Hydroides longistylaris Chen & Wu, 1980 (original binomen)
Etymology: Not stated, but for H. longistylaris evidently the Latin longus ‘long’ and adjectival Latinization of Greek στυλος (stylos) ‘pillar’ refers to the long, elongated basis
of the opercular funnel, thus ‘pillar-like’.
Evaluation: Masculine/feminine invariant adjective (-stylaris -e).
Type locality: Shellfish farms, Zhangpu (Zhangzhou), Fujian Province, China.
Geolocation: 24.4379°, 117.9762° (map estimate).
WoRMS: 328454
Synonyms: No subjective synonyms.
Hydroides malleolaspina Straughan, 1967a (original binomen)
Etymology: Not stated, but the name for H. malleolaspina is evidently a compound
noun from Latin malleolus ‘small hammer’, referring to the dorsal hammer-shaped
verticil spine, and spina ‘thorn’.
Evaluation: Invariant noun in apposition. Usages as ‘malleolaspinus’ exist (e.g., Murray
et al. 2010: 393).
Type locality: Pialba, Hervey Bay, Queensland, Australia.
Geolocation: -25.2747°, 152.8345° (map estimate).
WoRMS: 369240
Synonyms: “Hydroides trihamulatus” [sic] Pillai, 2009 [unavailable name (no typedesignation), assignment by Murray et al. 2010] (Australia)
Hydroides microtis Mörch, 1863 (originally as H. (Eucarphus) microtis)
Etymology: Not stated, but for H. microtis the ‘micro’ derives from Greek μικρος
(micros) ‘small’, and perhaps is combined with Greek neuter noun genitive οτοσ
(otos) ‘ear’. The Latinizations ‘microtis’ and ‘microtus’ are in use as both genus and
species-group names for small-eared biota. Whether the same derivation applies for
H. microtis is unclear, as the verticil spines are knob-tipped and not notably small
or ear-like.
Evaluation: Invariant whether a noun in apposition or (masculine/feminine) intended
as adjectival.
Type locality: North America (unspecified) as “ad Americam borealem” on Argopecten
irradians (was as Pecten), collected by A. B. Mayer, presumably on the Atlantic coast as
A. irradians is the bay scallop of that region.
Geolocation: Unknown (unspecified Atlantic coast of North America, with 44°, -68°
the mid point of the coastal extent).
WoRMS: 333641
Synonyms: No subjective synonyms.
feminine Hydroides
27
Hydroides minax (Grube, 1878b) (originally as Serpula minax)
Etymology: Not stated, but for S. minax the Latin adjective minax -acis meaning ‘jutting out’ is likely referring to the enormous dorsal verticil spine.
Evaluation: Invariant adjective (masculine/feminine ‘minax’).
Type locality: Philippines (unspecified).
Geolocation: Unknown (12°, 122° (gazetteer) is central to the Philippines Islands).
WoRMS: 131007
Synonyms: Serpula (Hydroides) monoceros Gravier, 1906 (Bonhoure Recif, Djibouti,
Gulf of Aden)
Hydroides mongeslopezi Rioja, 1958 (original binomen)
Etymology: The author named H. mongeslopezi after Ricardo Monges López of Veracruz.
Evaluation: Invariant genitive noun mongeslopezi from modern personal name of
Monges López.
Type locality: On floating pumice, Playa Norte, Isla Santiaguillo, Veracruz, Gulf of
Mexico.
Geolocation: 19.1634°, -95.8502° (map estimate).
WoRMS: 328456
Synonyms: No subjective synonyms.
Hydroides monroi Zibrowius, 1973 (original binomen)
Etymology: Not stated, but the species H. monroi is evidently named after C. C. A.
(Charles Carmichael Arthur) Monro, who had studied the specimens earlier.
Evaluation: Invariant genitive noun monroi from modern personal name of Monro.
Type locality: Pointe Noire, Congo, West Africa.
Geolocation: -4.7858°, 11.8361° (map estimate).
WoRMS: 328457
Synonyms: No subjective synonyms.
Hydroides mucronata Rioja, 1958 (original binomen)
Etymology: Not stated, but the name for H. mucronata is evidently referring to the pointed
(Latin mucronatus) side spines of the verticil spines “que tienen forma de mucron” (Rioja
1958: 256).
Evaluation: Correct original adjectival feminine ending. Usages as ‘mucronatus’ exist
(e.g., Bastida-Zavala and ten Hove 2002: 141).
Type locality: Isla de Sacrificios, Veracruz, Gulf of Mexico.
Geolocation: 19.1749°, -96.0929° (map estimate).
WoRMS: 328458
Synonyms: No subjective synonyms.
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Hydroides multispinosa Marenzeller, 1885 (original binomen)
Etymology: Not stated, but the name for H. multispinosa evidently refers adjectivally
to multiple lateral spinules on the verticil spines.
Evaluation: Correct original adjectival feminine ending. Usages as masculine ‘multispinosus’
exist (e.g., ten Hove and Kupriyanova 2009: 54).
Type locality: Shore at Eno-sima (Enoshima), Sagami Bay, Honshu, Japan. There is
an Enoshima-rettō Island, also off Honshu, but the Sagami Bay Enoshima is the most
likely visited.
Geolocation: 35.2977°, 139.4817° (map estimate).
WoRMS: 335316
Synonyms: No subjective synonyms.
Hydroides nanhaiensis Wu & Chen, 1981 (original binomen)
Etymology: Not stated, but H. nanhaiensis is evidently named broadly geographically
as “Nanhai” is the South China Sea in Chinese.
Evaluation: Masculine/feminine invariant ‘-ensis’ adjective created from a non-Latin
geographic area name.
Type locality: Xi River estuary, Pearl River Delta, Macao, Guangdong, China coast,
South China Sea, 58m, fixed on rock, stations 6016, 6044 (fide Sun and Yang 2014:
218 (map), 241; no locality in the original text).
Geolocation: 22.0602°, 113.4792° (map estimate, Xi River mouth).
WoRMS: 328459
Synonyms: No subjective synonyms.
Hydroides nigra Zibrowius, 1971 (original binomen)
Etymology: Not stated, but the name for H. nigra is evidently referring to the dark
colour of the operculum, especially of the opercular constriction (“un anneau noir à la
base de l‘opercule”) and the verticil spines, and derived from the Latin adjective niger,
nigra, nigrum ‘black’.
Evaluation: Gender-variable adjective with correct original feminine ending. Usages as
‘niger’ exist (e.g., Bellan 2001: 226)).
Type locality: Tabarka “au large de l’ile [Tabarka] et de la Pointe Meloula [4 km
west]”, Tunisia, Mediterranean Sea.
Geolocation: 36.9666°, 8.7588° (map estimate for north end of Tabarka).
WoRMS: 328460
Synonyms: No subjective synonyms.
Hydroides nikae Sun, Wong, Tovar-Hernández, Williamson & Kupriyanova, 2016
(original binomen)
Etymology: The authors named H. nikae after Nika Mikhin, daughter of Kupriyanova.
feminine Hydroides
29
Evaluation: Invariant feminine genitive form nikae of given name Nika.
Type locality: Edithburgh Jetty, Edithburgh, St Vincent Gulf, South Australia.
Geolocation: -35.0848°, 137.7488° (adjusted to jetty from authors’ inland 35°05'S,
137°44'(should be 45') E).
WoRMS: 871949
Synonyms: No subjective synonyms.
Hydroides nodosa Straughan, 1967a (original binomen)
Etymology: Not stated, but H. nodosa is likely named for the internal “rounded projection” at the base of each verticil spine, from the adjective nodosus -a -um ‘knotty’.
Evaluation: Gender-variable adjective with correct original feminine ending. Usages as
‘nodosus’ exist (e.g., ten Hove and Kupriyanova 2009: 54).
Type locality: Tannum Sands, Gladstone, Queensland, Australia.
Geolocation: -23.93°, 151.37° (map estimate fide Australian Museum holotype
W.4013 catalogue record).
WoRMS: 328461
Synonyms: No subjective synonyms.
Hydroides norvegica Gunnerus, 1768 (original binomen)
Status: The type species of the genus (by monotypy).
Etymology: Not stated, but the name for H. norvegica is evidently derived from the
country of collection, Norway (Latin Norvegia), from which the feminine-suffix adjective
‘norvegica’ is derived.
Evaluation: Gender-variable adjective based on a geographic name. H. norvegica was
given a species-group name with a feminine ending. Many usages as ‘norvegicus’ exist
(e.g., Moen 2006: 115).
Type locality: Trøndelag region, Norway. Trondheimsfjord off Statsbygd is one of
three locations mentioned by Gunnerus (see Moen, 2006: 118).
Geolocation: Imprecisely known (map estimate 63.4687°, 10.011° for off Statsbygd).
WoRMS: 131009
Synonyms: There is an extensive list by McIntosh (1923: 347) of early serpulid names and
usages in Eupomatus, Hydroides, Serpula, and Vermilia that are suggested to be Hydroides
norvegica synonyms. Nine of the placements were repeated later in a world catalogue
(Hartman 1959), but only two can be confirmed here (see Read and Fauchald 2016 for
status of the remainder). Also Mörch, 1863 named a subspecies H. norvegica gronlandica,
based on a Fabricius MS, but it is a nomen dubium unlikely to be a Hydroides.
Eupomatus trypanon Claparède, 1870b (Gulf of Naples, Italy, Tyrrhenian Sea)
Serpula solitaria Bean, 1844 (Scarborough, North Yorkshire, England)
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Geoffrey B. Read et al. / ZooKeys 642: 1–52 (2017)
Hydroides novaepommeraniae Augener, 1925 (originally as Hydroides (Eupomatus)
novae-pommeraniae)
Etymology: Not stated, but the name for H. novaepommeraniae is evidently a Latinized
form of the former name of the island of collection, New Britain, Bismarck Archipelago, now part of Papua New Guinea, once a German colony named Neupommern,
after the Baltic (Ostsee) coastal lands besides Pommersche Bucht.
Evaluation: Invariant noun in the genitive case created from a non-Latin geographic
name Latinized as ‘novaepommeran’.
Type locality: “Hanam-Hafen” (Hannan or Garua Harbour), north coast of New Britain,
Papua New Guinea.
Geolocation: -5.2833°, 150.0333° (map estimate).
WoRMS: 131010
Synonyms: Hydroides grubei Pillai, 1965 (Binakayan, Cavite, Manila Bay, Philippines)
Hydroides ochotereana Rioja, 1941a
Etymology: Rioja (1941a: 167) stated the name for H. ochotereana was “dedicar esta
especie al Maestro D. Isaac Ochoterena”, but he used the spelling ‘ochotereana’ for the
species-group name.
Evaluation: Incorrect Latinization to be treated as a noun in apposition. The use of
H. ochotereana has been regarded as an accidental incorrect original spelling by BastidaZavala and ten Hove (2003), who cited Article 32.5 (ICZN 1999) as justification for
using ‘ochoterena’, although that would be an unchanged noun in apposition, rather
than a genitive. Instead, we cannot reject the likelihood that Rioja had intentionally
used the altered ‘-eana’ ending (after all he used it consistently five times but correctly
spelled the name of dedicatee Ochotorena) aiming to create an adjectival form
of Ochotorena. His adaptation could be intended as a rendering using the suffix
‘-anus’ -ana’ (belonging to), frequently used for adjectival Latinization of nouns
based on personal and geographic names. As it was the author who was responsible
for an incorrect Latinization (ICZN 1999, Article 32.5.1) his original spelling is not
corrected (also see Welter-Schultes, 2013: 77). This also avoids the name looking like
an authorship (ICZN 1999, recommendation 31A).
Type locality: La Aguada and La Quebrada beaches, Acapulco, Mexico.
Geolocation: 16.8461°, -99.9156° (La Quebrada, map estimate).
WoRMS: 328462
Synonyms: No subjective synonyms.
Hydroides operculata (Treadwell, 1929) (originally as Eupomatus operculata [sic])
Etymology: Not stated, but the name for E. operculata derives from the Latin verb
operculo -avi -atum ‘to cover’, and in New Latin operculata is used as an adjectival form.
It is unclear why Treadwell chose the name as all Hydroides have opercula. His specimen was endowed with two, but he didn’t name it ‘bioperculata’.
feminine Hydroides
31
Evaluation: Gender-variable adjective with incorrect original feminine ending for
Eupomatus. Usages in Hydroides as ‘operculatus’ exist (e.g., Bellan 2001: 226).
Type locality: Berbera, Somaliland, Gulf of Aden.
Geolocation: 10.441°, 45.0075° (map estimate).
WoRMS: 131011
Synonyms: Hydroides basispinosa Straughan, 1967a [re-evaluating, see listing herein]
Hydroides gradata Straughan, 1967a [re-evaluating, see listing herein]
Hydroides inornata Pillai, 1960 [re-evaluating, see listing herein]
Hydroides panamensis Bastida-Zavala & ten Hove, 2003 (original binomen)
Etymology: The authors state that H. panamensis is named “for its distribution, as far
as known yet restricted to the Pacific side of Panama (and adjacent areas).”
Evaluation: Masculine/feminine invariant ‘-ensis’ adjective created from a non-Latin
geographic name.
Type locality: Paitilla Beach (Punta Paitilla), Panama City, Western Panama.
Geolocation: 8.9733°, -79.5183° (map estimate).
WoRMS: 328464
Synonyms: No subjective synonyms.
Hydroides parva (Treadwell, 1902) (originally as Eupomatus parvus)
Etymology: Not stated, but Treadwell (1902: 210) stated the specimens of E. parvus
were “very small” (6 mm) thus Latin parvus ‘small’.
Evaluation: Gender-variable adjective recombined in Hydroides with correct feminine
ending (e.g., Zibrowius 1971: 712, 717). Usages in Hydroides as ‘parvus’ exist (e.g.,
Hartman 1956: 250).
Type locality: West coast of Puerto Rico, Caribbean Sea, at both Boqueron Bay and
nearby Mayagüez Harbour (station 6062, estimated 18.2°, -67.17°), as Treadwell
had specimens from both locations. No station geolocations appear to have been
available for the various Fish Hawk ‘Porto Rico’ stations (Treadwell 1939). Syntypes
(USNM 16173) in the Smithsonian National Museum of Natural History are recorded
as from Boqueron Bay (Bahia de Boqueron).
Geolocation: 18.0208°, -67.1987° (map estimate, Bahia de Boqueron).
WoRMS: 876557
Synonyms: No subjective synonyms.
Hydroides pectinata (Philippi, 1844) (originally as Eupomatus pectinatus)
Status: Name now disused and representing a species inquirenda. It is not eligible as
a candidate nomen oblitum (used in taxonomy by Iroso 1921: 49, Naples), but is
indeterminable unless original specimens are found. The operculum figured by Philippi
is similar to that of H. elegans (Haswell, 1883) (fide Zibrowius 1971: 718).
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Geoffrey B. Read et al. / ZooKeys 642: 1–52 (2017)
Etymology: Philippi’s brief Latin description of E. pectinatus describes the operculum
spines as ‘utrinque pectinatis’ (pectinate both sides) with three sharp teeth. The Latin
adjective pectinatus indicates comb-like divisions.
Evaluation: Gender-variable adjective recombined in Hydroides with correct feminine
ending (e.g., Mörch, 1863: 377).
Type locality: Unspecified Mediterranean, but can be narrowed to the Tyrrhenian Sea
coast of Italy as Philippi’s activities were in western Italy, and plausibly to Naples as he
was based there prior to 1844.
Geolocation: Unknown (Tyrrhenian Sea, with Naples shore (40.8327°, 14.2358° map
estimate) a possible point location).
WoRMS: 393822
Synonyms: As species inquirenda has no synonyms although H. elegans has been suggested.
Hydroides perezi Fauvel, 1918 (original binomen)
Etymology: Fauvel announces on the first page of his article that H. perezi is dedicated
to “M. Ch. Pérez”, who collected the worms off the Arabian coast.
Evaluation: Invariant genitive form perezi from personal name Pérez.
Type locality: Pearling banks (within 24°55'N–25°10'N, 54°40'E–55°10'E) dredged ~15
miles from the coast of Oman (currently near Dubai, UAE) (Fauvel 1918: 329).
Geolocation: 25.0417°, 54.9167° (map estimate, mid point of bounds given by
author).
WoRMS: 209947
Synonyms: No subjective synonyms.
Hydroides plateni (Kinberg, 1867) (originally as Eupomatus plateni)
Etymology: Not stated, but E. plateni is evidently named after its La Plata collection
station of the Swedish frigate Eugenie expedition.
Evaluation: Invariant genitive from Old Frankish ‘platen’, ultimately from Greek
πλατuσ (platus) ‘flat’, relating to the Spanish La Plata placename, which plausibly had
derived from a once widespread use of ‘plate’ to signify precious metals. Other ‘plateni’
species group names of the period may relate to the German zoological collector Carl
Platen (1843–1899) but clearly not this one.
Type locality: Offshore off the La Plata (“prope ostium fluvii La Plata”) embayment,
Argentina/Uruguay (the Eugenie berthed at Montevideo, Uruguay).
Geolocation: Imprecisely known (map estimate -35.3°, -56.3° for mid La Plata, offshore of Montevideo).
WoRMS: 369242
Synonyms: No subjective synonyms.
feminine Hydroides
33
Hydroides protulicola Benedict, 1887 (original binomen)
Etymology: Not stated, but H. protulicola is evidently named from Protula (serpulid
genus) combined with -cola ‘dweller’, because it was fastened on the tube of Protula
diomedeae Benedict, 1887.
Evaluation: Invariant compound noun in apposition with -cola as a substantival suffix.
Type locality: Northeast off Cape Hatteras, North Carolina, Atlantic coast USA, 86 m.
Geolocation: 35.7°, -74.9083° (from author as 35°42'00"N, 74°54'30"W).
WoRMS: 338020
Synonyms: No subjective synonyms.
Hydroides pseudexaltata Pillai, 2009 (originally as H. pseudexaltatus)
Etymology: The author states he named H. pseudexaltatus after the superficial similarity
of the operculum to that of H. exaltatus.
Evaluation: Gender variable adjective, with usage as corrected feminine ‘pseudexaltata’
in Sun et al. (2015: 65).
Type locality: Shoreline on “island off north east Heywood Island” Kimberley, Western
Australia. The author’s given geolocation (15°05'S, 124°25'E) is oceanic and clearly
incorrect. This is not a rounding error. The island north east of Heywood is the closely
adjacent and much larger Jungulu Island.
Geolocation: -15.3167°, 124.3493° (map estimate, Jungulu shore adjacent Heywood
Island).
WoRMS: 882697
Synonyms: No subjective synonyms.
Hydroides pseudouncinata Zibrowius, 1968 (original binomen)
Status: Currently valid but it is possibly the same as the disused H. euplaeana (see above).
Etymology: Not stated, but evidently H. pseudouncinata was named because it represents one of the taxa previously confounded under H. uncinata (see below), a name
regarded as of indeterminable identity from its original description (fide Zibrowius
1971: 709).
Evaluation: Gender-variable adjective with correct original feminine ending. Usages
as ‘pseudouncinatus’ species (or nominal subspecies) exist (e.g., ten Hove and Kupriyanova 2009: 54).
Type locality: East off Île Gaby (also Degaby), Marseille, France, Mediterranean Sea
(not in Zibrowius 1968, fide Zibrowius 1971: 708).
Geolocation: 43.2776°, 5.3449° (map estimate).
WoRMS: 131012
Synonyms: No subjective synonyms.
34
Geoffrey B. Read et al. / ZooKeys 642: 1–52 (2017)
Hydroides pseudouncinata africana Zibrowius, 1971 (original trinomen)
Etymology: The author named subspecies H. pseudouncinata africana after its continent
of collection, Africa.
Evaluation: Gender-variable adjective with correct original feminine ending. Usages as
‘africanus’ exist (e.g., ten Hove and Kupriyanova 2009: 54).
Type locality: Off Rio de Oro, Mauritania, Atlantic coast of Africa.
Geolocation: 21.0833°, -17.4° (author, 21°05'N, 17°24'W).
WoRMS: 335489
Synonyms: No subjective synonyms.
Hydroides qiui Sun, Wong, ten Hove, Hutchings, Williamson & Kupriyanova,
2015 (original binomen)
Etymology: The authors dedicated H. qiui to Jian-Wen Qiu.
Evaluation: Invariant genitive form qiui from personal name Qiu.
Type locality: East Arm Port, Darwin Harbour, Northern Territory, Australia.
Geolocation: -12.4917°, 130.8831° (authors, 12°29'30"S, 130°52'59"E).
WoRMS: 852783
Synonyms: No subjective synonyms.
Hydroides ralumiana Augener, 1927 (originally (incorrectly) as H. (Eupomatus)
ralumianus)
Etymology: Not stated, but H. ralumianus is named after Ralum plantation, near its
place of collection.
Evaluation: Gender-variable adjective, based on a non-Latin place-name, corrected
by Day (1967: 806) from the masculine. The suffix ‘-anus -a’ is frequently used for
Latinization of names based on localities and personal names.
Type locality: Ralum, Kokopo, Blanche Bay, New Britain (Neu-Pommern), Bismarck
Archipelago of Papua New Guinea. The plantation “Ralum” was briefly the base for
Friedrich Dahl, who collected the worms in 1896–97 (fide Augener 1927).
Geolocation: -4.3371°, 152.2674° (map estimate).
WoRMS: 209951
Synonyms: No subjective synonyms.
Hydroides recta Straughan, 1967a (original binomen)
Etymology: Not stated, but the name for H. recta is perhaps a reference to the 8th
enlarged dorsal verticil spine with its “pointed process perpendicular to it” from Latin
rectus ‘perpendicular’.
Evaluation: Gender-variable adjective with correct original feminine ending. Usages as
masculine ‘rectus’ exist (e.g., Pillai 2009: 132).
Type locality: Pretty Beach, north of Cairns, Queensland, Australia.
feminine Hydroides
35
Geolocation: -16.6111°, 145.5318° (map estimate, a beach 40 km north of Cairns).
WoRMS: 328466
Synonyms: No subjective synonyms.
Hydroides recurvispina Rioja, 1941a (original binomen)
Etymology: Not stated, but the name for H. recurvispina is likely referring to the verticil
spines which are sharply curving backwards on themselves. Thus the name is formed
from Latin recurvus ‘backward curved’ combined with spina ‘thorn’.
Evaluation: Invariant noun in apposition. Bastida-Zavala and ten Hove (2003: 99)
maintained the original spelling.
Type locality: La Aguada, Acapulco, Mexico.
Geolocation: 16.8398°, -99.9009° (map estimate).
WoRMS: 328467
Synonyms: No subjective synonyms.
Hydroides rhombobula Chen & Wu, 1980 (originally as H. rhombobulus)
Etymology: Not stated, but the name for H. rombobulus may be referring to the shape
of the verticil spines, derived from a combination of Greek ρομβος (rombos) ‘rhombus’,
which is a parallelogram with only opposite angles equal, and Latin -ulus, which is a
diminutive in masculine-form.
Evaluation: Clearly intended as an adjectival name, so it is corrected herein to feminine
rhombobula.
Type locality: Dongshan, Fujian Province, China
Geolocation: 23.6689°, 117.3969° (map estimate).
WoRMS: 882579
Synonyms: No subjective synonyms.
Hydroides rostrata Pillai, 1971 (original name, junior homonym, replacement
name Hydroides gottfriedi nomen novum)
Status: Previously unreplaced junior homonym preoccupied by the invalid Hydroides
rostrata Iroso, 1921, which was a n. nom. for the specimen of Eupomatus uncinatus
non Philippi, sensu Ehlers, 1887, but a junior objective synonym of Hydroides floridana (Bush, 1910) as Bush had already re-named it. Replaced by Hydroides gottfriedi
nom. n. here.
Etymology: Not stated, but H. rostrata is likely named after the large rostrum-like
verticil spine figured by the author. The adjective rostratus -a -um, means having a beak.
The genitive replacement name H. gottfriedi is in memory of Telesphore Gottfried
Pillai (1930–2013), the original-name author.
Evaluation: Gender-variable adjective with correct original feminine ending. Usages as
‘rostratus’ exist (e.g., ten Hove and Kupriyanova 2009: 54).
36
Geoffrey B. Read et al. / ZooKeys 642: 1–52 (2017)
Type locality: Hikkaduwa, Sri Lanka. Types were collected at both Hikkaduwa and
Wellawatte. These localities are separated by some considerable distance, but the holotype
at the Natural History Museum, London BM 1968–148, is from Hikkaduwa.
Geolocation: 6.1324°, 80.1000° (map estimate).
WoRMS: 328469
Synonyms: No subjective synonyms.
Hydroides salazarvallejoi Bastida-Zavala & ten Hove, 2002 (original binomen)
Etymology: The authors named H. salazarvallejoi as a dedication to Sergio SalazarVallejo.
Evaluation: Invariant genitive form salazarvallejoi from personal name Salazar-Vallejo.
Type locality: Cabo de la Aguja, Santa Marta region, Colombia, Caribbean Sea.
Geolocation: 11.3040°, -74.1937° (map estimate).
WoRMS: 328470
Synonyms: No subjective synonyms.
Hydroides sanctaecrucis Krøyer [in] Mörch, 1863 (originally Hydroides (Eucarphus)
sanctae crucis)
Etymology: Not stated, but H. sanctaecrucis is clearly named after its type locality,
Saint Croix Island, and the syntypes at the Zoological Museum, University of Copenhagen are labelled “Kr. St. Croix, legit Oerstedt”. The genitive of the feminine Latin
noun crux ‘cross’ is crucis.
Evaluation: Place-name translated into Latin. The genitive-case noun sanctaecrucis is
invariant.
Type locality: Saint Croix (unspecified further), Virgin Islands, Caribbean Sea.
Geolocation: 17.6949°, -64.7416° (map estimate for the port area).
WoRMS: 333645
Synonyms: Hydroides (Eupomatus) dianthoides Augener, 1922 [partim, fide BastidaZavala and ten Hove 2002: 147] (Haiti, Caribbean Sea)
Hydroides similis (Treadwell, 1929) (originally as Eupomatus similis)
Etymology: Not stated, but an instance of the Latin adjective similis ‘similar to’. Later
in the same work Treadwell (1929: 12) considered his H. californicus (now H. crucigera) as similar to his E. similis, which isn’t compared to any taxon, so the more logical
application of the names would have been in reverse.
Evaluation: Masculine/feminine invariant adjective (similis -e) (Stearn 1983: 94).
Type locality: Unspecified beyond a “Lower California” location on label (Baja
California, Mexico). The collector was Townsend, on the ‘Albatross’ voyage of 1911,
and the location is perhaps more likely the Gulf of California than off the Pacific coast.
Gulf coast sites mentioned by Treadwell where other polychaetes were collected include
feminine Hydroides
37
Isla Carmen and Isla San José, but there are many other possibilities (see Townsend
1916: 399, end map).
Geolocation: Unknown (30°, -115° (gazetteer) as Baja California general region, but
perhaps inner coast).
WoRMS: 369244
Synonyms: No subjective synonyms.
Hydroides similoides Bastida-Zavala & ten Hove, 2002 (original binomen)
Etymology: The authors state they named H. similoides for its resemblance to H. similis
(type locality Baja California) thus combining the Latin adjective similis ‘similar to’
with the suffix -oides, also ‘similar to’.
Evaluation: Invariant adjectival suffix -oides.
Type locality: La Parguera (jetty of marine institute), Isla Magueyes, Puerto Rico.
Geolocation: 17.9700°, -67.0463° (map estimate).
WoRMS: 328471
Synonyms: No subjective synonyms.
Hydroides simplidentata Pillai, 2009 (originally as Hydroides simplidentatus)
Etymology: The author states the name H. simplidentatus “refers to the simple
unmodified spines at the base of the enlarged coronal [verticil] spine”, combining
Latin adjectives simplus -a -um ‘simple’ and dentatus -a -um ‘toothed’.
Evaluation: Corrected to the feminine form simplidentata in Sun et al. (2015: 79) as
clearly an adjectival name.
Type locality: Unnamed reef north-west of Buffon Island (but cf. author’s supplied
geolocation which is non-reef and east of Buffon Island), Kimberley, Western Australia.
Geolocation: -14.9167°, 124.8° (author as stated, but likely displaced incorrectly by
~13 km to the East).
WoRMS: 882648
Synonyms: No subjective synonyms.
Hydroides sinensis Zibrowius, 1972a (original binomen)
Etymology: Not stated, but H. sinensis is evidently named for its occurrence on the
coast of China.
Evaluation: Masculine/feminine invariant Latin adjective (‘sinensis’) referring to China,
a non-Latin geographic name.
Type locality: Off Qingdao (Zibrowius as ‘Tsindao’), China coast, northern Yellow Sea.
Geolocation: 36.0565°, 120.38° (map estimate).
WoRMS: 328472
Synonyms: No subjective synonyms.
38
Geoffrey B. Read et al. / ZooKeys 642: 1–52 (2017)
Hydroides spongicola Benedict, 1887 (original binomen)
Etymology: Not stated but H. spongicola is evidently named from English ‘sponge’ as
stem spongi- combined with -cola ‘dweller’, because of its association as “frail calcareous tubes in living sponges”.
Evaluation: Invariant compound noun in apposition with -cola as a substantival suffix.
Type locality: West offshore from Venice, Florida, Gulf of Mexico, USA, 48 m.
Geolocation: 27.0667°, -83.3542° (as from author as 27°04'00"N, 83°21'15"W).
WoRMS: 338021
Synonyms: No subjective synonyms.
Hydroides steinitzi Ben-Eliahu, 1972 (original binomen)
Etymology: The species H. steinitzi is dedicated to Heinz Steinitz.
Evaluation: Invariant genitive form steinitzi from personal name Steinitz.
Type locality: Sinai bank of Little Bitter Lake, Suez Canal, opposite Al-Kabrit on
Egyptian bank.
Geolocation: 30.2662°, 32.5066° (opposite Al-Kabrit, map estimate).
WoRMS: 131014
Synonyms: No subjective synonyms.
Hydroides stoichadon Zibrowius, 1971(original binomen)
Etymology: Not stated, but H. stoichadon is from Greek Στοιχαδας (Stoichadas), an
old name for Îles d’Hyères, an archipelago of small islands near Toulon, Mediterranean coast of France (H. Zibrowius pers. comm.).
Evaluation: Invariant Latinization created from Greek place-name, having the form of
a noun in apposition.
Type locality: Cap du Merlan, the south west corner of Parc Nacional de Port Cros
(island), off the Mediterranean coast of France.
Geolocation: 42.9960°, 6.3718° (map estimate).
WoRMS: 131015
Synonyms: No subjective synonyms.
Hydroides tambalagamensis Pillai, 1961 (original binomen)
Etymology: Not stated but H. tambalagamensis is evidently named after its place of
collection, Tambalagam.
Evaluation: Masculine/feminine invariant ‘-ensis’ adjective created from a non-Latin
place-name.
Type locality: Nachchikuda, Tambalagam Lake (a bay), eastern Sri Lanka.
Geolocation: 8.5333°, 81.1667° (map estimate).
WoRMS: 328474
Synonyms: Hydroides spiculitubus [noun in apposition] Pillai, 2009 (Long Reef,
Kimberley, Western Australia)
feminine Hydroides
39
Hydroides tenhovei Bastida-Zavala & de León González, 2002 (original binomen)
Etymology: The authors dedicated the name H. tenhovei to Harry ten Hove.
Evaluation: Invariant genitive form tenhovei from personal name ten Hove.
Type locality: Cabo San Lazaro, western coast of Baja California Sur, Mexico.
Geolocation: 24.7813°, -112.2905° (authors 24°50'N, 112°15'W, adjusted to be coastal).
WoRMS: 328475
Synonyms: No subjective synonyms.
Hydroides trilobula Chen & Wu, 1978 (originally H. trilobulus)
Etymology: Not stated, but the name for H. trilobulus evidently refers to three vesicular
verticil spines (three lobes), which are small ones, hence the diminutive Latin suffix -ulus.
Evaluation: Clearly meant as an adjectival name, so it is corrected herein to trilobula.
Type locality: Xisha Islands (Paracel Islands, unspecified further), South China Sea, of
which Yongxing Island is the largest.
Geolocation: Imprecisely known (16.8833°, 112.2833° if Yongxing Island, map
estimate).
WoRMS: 882593
Synonyms: No subjective synonyms.
Hydroides trivesiculosa Straughan, 1967b (originally H. trivesiculosus)
Etymology: Not stated, but the name for H. trivesiculosus is evidently referring to the
three lobes of the enlarged dorsal spine of the verticil, thus tri with Latin adjective
vesiculosus -a um ‘full of blisters’.
Evaluation: Gender-variable adjective with ending feminine as in Sun et al. (2015: 85)
and Kupriyanova et al. (2015; 293), both mistakenly reporting the original name as
‘trivesiculosa’). Usages as ‘trivesiculosus’ (besides original) exist (e.g., ten Hove and Ben
Eliahu 2005: 134).
Type locality: Heron Island, Queensland coast, Australia, collected close to the marine
station by Dew (map in Straughan 1967b).
Geolocation: -23.4430°, 151.9110° (map estimate).
WoRMS: 882647
Synonyms: No subjective synonyms.
Hydroides trompi Bastida-Zavala & ten Hove, 2003 (original binomen)
Etymology: The authors named H. trompi dedicated to Jossy S. Tromp, a student of
ten Hove.
Evaluation: Invariant genitive form trompi from personal name Tromp.
Type locality: Lower chamber wall and floor, Miraflores Locks, Panama Canal, Panama.
Geolocation: 8.9967, -79.5964 (authors).
WoRMS: 328478
Synonyms: No subjective synonyms.
40
Geoffrey B. Read et al. / ZooKeys 642: 1–52 (2017)
Hydroides tuberculata Imajima, 1976a (original binomen)
Etymology: Not stated, but the name for H. tuberculata may refer to tubercles (knobs)
on each verticil spine as the Latin noun tuberculum refers to a swelling or lump.
Evaluation: Gender-variable adjectival form of tuberculum with correct original feminine ending. Usages as ‘tuberculatus’ exist (e.g., Bailey-Brock 1987: 282).
Type locality: Urata (beach), Tanegashima (island), Southern Japan. Imajima (1976a)
also gives records for Sumiyoshi, and off Nishinoomote Harbour, Tanegashima, but
a Urata specimen is the holotype (NSMT-Pol. H-120) at the National Museum of
Nature & Science, Tokyo.
Geolocation: 30.8233°, 131.0409° (map estimate, Urata).
WoRMS: 871950
Synonyms: No subjective synonyms.
Hydroides uncinata (Philippi, 1844) (originally as Eupomatus uncinatus)
Status: Name now disused and representing a species inquirenda which is the type
species of Eupomatus. It is not a candidate nomen oblitum (used in taxonomy as valid
by Zibrowius 1968: 109, Hartman 1969: 757, Gibbs 1971: 202, Pillai 1972: 15,
Day 1973: 132, and others), but the taxon it represents may be indeterminable unless
original specimens are found. Zibrowius (1968) named H. pseudouncinata to establish
a separation from H. uncinata, and Pillai (1972) did likewise with H. okudai. The
name does not obviously threaten the validity of subsequent names, but it is notable
that several H. uncinata usages have been assigned elsewhere, e.g., Serpula (Hydroides)
uncinata non Philippi, sensu Gravier, 1906 to H. heterocera.
Etymology: Not stated, but Philippi described the verticil spines as with “cornubus
octo, apice incurvo uncinatis” (eight horns, curved tip hooked), thus the name refers to
the hooked spines, from the Latin adjective uncinatus ‘hooked’.
Evaluation: Gender-variable adjective with correct feminine ending. Usages in Hydroides
as ‘uncinatus’ exist (e.g., Ehlers 1913: 582).
Type locality: Unspecified Mediterranean, but can be narrowed to the Tyrrhenian Sea
coast of Italy as Philippi’s activities were in western Italy, and plausibly to Naples as he
was based there prior to 1844.
Geolocation: Unknown (Tyrrhenian Sea, with Naples shore (40.8327°, 14.2358° map
estimate) a possible point location).
WoRMS: 156135
Synonyms: As species inquirenda has no synonyms.
Hydroides uniformis Imajima & ten Hove, 1986 (original binomen)
Etymology: Not stated, but the name H. uniformis evidently refers to the straight,
thick, unornamented spines of the verticil which are described as “uniform”.
Evaluation: Masculine/feminine invariant adjective (uniformis -e) (Stearn 1983: 94).
feminine Hydroides
41
Type locality: Kesao, Guadalcanal, Solomon Islands, Pacific Ocean.
Geolocation: -9.25°, 159.6667° (map estimate).
WoRMS: 369245
Synonyms: No subjective synonyms.
Hydroides vizagensis Lakshmana Rao, 1969 (original binomen)
Etymology: Not stated, but the name H. vizagensis likely derives from the collection
location, Visakhapatnam, which has the nickname Vizag.
Evaluation: Masculine/feminine invariant ‘-ensis’ adjective created from a non-Latin
place-name.
Type locality: Naval Base (collected off settlement panels), Visakhapatnam Harbour,
east coast of India, Bay of Bengal.
Geolocation: 17.6938°, 83.2739° (map estimate).
WoRMS: 870503
Synonyms: No subjective synonyms.
Hydroides xishaensis Chen & Wu, 1978 (original binomen)
Etymology: Not stated, but H. xishaensis is evidently named after its area of collection,
the Xisha Islands.
Evaluation: Masculine/feminine invariant ‘-ensis’ adjective created from a non-Latin
geographic name.
Type locality: Xisha Islands (Paracel Islands, unspecified further), South China Sea, of
which Yongxing Island is the largest.
Geolocation: Imprecisely known (16.8833°, 112.2833° if from Yongxing Island, map
estimate).
WoRMS: 328480
Synonyms: No subjective synonyms.
Discussion
Name characteristics and potential variation
Place-names (23), and personal names (16) make up more than a third (36%) of the
107 non-synonymised species-group names in Hydroides, with most of the remainder
(68) being descriptive of species character states, with a remarkable number relating
to operculum morphology (54). The (perhaps) ‘small-eared’ H. microtis was the only
species where the reason for the author’s choice was not obvious. Otherwise three
species were named for their attractive appearance (H. dianthus, H. elegans, H. elegantula), three were named for the animals they were found on (H. fusicola, H. protulicola,
42
Geoffrey B. Read et al. / ZooKeys 642: 1–52 (2017)
H. spongicola), four names are comparative (H. affinis, H. pseudouncinata, H. similis,
H. similoides), two species names probably relate to body size (H. humilis, H. parva),
and one species name relates to the tube form (H. hexagona).
Currently the 107 names include 41 which should be gender invariant (including
17 nouns in apposition, including two acronyms), and 23 with adjectival masculine/
feminine endings in -is, which would only change (to -e) if moved to a neuter genus
(13 of these are place-names). The remaining 43 names are fully gender variable. There
are 68 adjectival names in total (including 19 adjectival place-names), with only two
adjectival names completely invariant.
Type locality distribution
Type localities of the Hydroides serpulids listed are, with one exception, in shallow-water
coastal locations in temperate to tropical waters between 43.3°N and 35.3°S (Figs 1–2).
Hydroides norvegica is the exception from deeper water (but still inshore), and occurred
at the highest latitude at 63.4°N. It is the most cold tolerant based on type locality, with
a 20° latitudinal gap to all other species type localities, although its distribution extends
south into the Mediterranean (Zibrowius 1971). The western Pacific Ocean (Australia
! norvegica
pseudouncinata
affinis !
! helmata
stoichadon
! pectinata
euplaeana
! nigra uncinata
!! dafnii
!
fusca ! tuberculata
! longispinosa
! bisecta
longistylaris
!!rhombobula
perezi
!!
bulbosa
!nanhaiensis
! heterocera
! vizagensis
! operculata
! fusicola
exaltata
! multispinosa
! sinensis
steinitzi
albiceps
! ezoensis
diplochone !
huanghaiensis !
inornata heterofurcata
!! tambalagamensis
bifurcata !
rostrata
!
homoceros !
! ancorispina
trilobula
!xishaensis
Pacific Ocean
! minax
! furcifera
Equator
calopoma
! arnoldi
!!monroi
augeneri
! ralumiana
!novaepommeraniae
! bandaensis
Indian Ocean
kimberleyensis
simplidentata !
!
adamaformis !
pseudexaltata
! uniformis
qiui
! glasbyi
! lirs
gradata ! recta
! basispinosa
trivesiculosa
! externispina
nodosa !
! malleolaspina
! capensis
! dipoma
nikae
!
elegans
! amri
!
Figure 1. Hydroides species type localities of the Eastern Hemisphere (Indian Ocean and Western Pacific).
Labels are current species-group names (except homonym H. rostrata renamed herein as H. gottfriedi nom. n.)
feminine Hydroides
43
to northern Japan) has the biggest group of new species at 39, with another 15 species
in the northern Indian Ocean and Red Sea (Fig. 1), a total of 54 for the greater IndoPacific. The Americas north of the equator have 13 new species on the East Pacific coast,
and 18 on the Western Atlantic coast and the Caribbean/Gulf of Mexico area (Fig. 2),
a total of 31 for North American and Caribbean coasts combined. Europe (including
Azores) has only 10 new species, mostly in the Mediterranean Sea (Fig. 1). This leaves
only 12 other species described from elsewhere. Notably, few new species (9) have been
reported from the major continental coasts of the South American coast south of the
equator, and the African coast (outside of the Red Sea and Mediterranean, and including Madagascar), but this may be partly a reflection of lesser sampling effort, and also
the consequence of other areas being examined first, given that Hydroides species are
readily translocated on the floating objects and vessel hulls they colonise.
Acknowledgements
We would like to thank the following colleagues for their contributions to our study:
Normand David (Québec, Canada) for valuable language and Code advice on some of
our name evaluations; Leslie Harris (Natural History Museum of Los Angeles County)
! microtis
! dianthus
gracilis
!
! protulicola
floridana
!!hexagona
! bispinosa
similis
humilis
!
!
deleoni !
tenhovei !
! bannerorum
elegantula
spongicola !
brachyacantha
! dolabrus
mongeslopezi
recurvispina !
ochotereana
glandifera
! azorica
pseudouncinata africana
! mucronata
dirampha
alatalateralis ! parva !!
! sanctaecrucis
similoides
gairacensis
crucigera !
! !
!
lambecki
! salazarvallejoi
trompi
panamensis
Equator
Pacific Ocean
inermis
!
Atlantic Ocean
chilensis
!
! exaltata vesiculosa
! plateni
Figure 2. Hydroides species type localities of the Western Hemisphere (Americas and Eastern Pacific).
Labels are current species-group names. Map grids 30° intervals.
44
Geoffrey B. Read et al. / ZooKeys 642: 1–52 (2017)
and Stephen Keable (Australian Museum) for help with some locality data; Sameer
Kumar Pati (Zoological Survey of India) for providing a little-known Lakshmana Rao
article; lastly Rolando Bastida-Zavala (Universidad del Mar, Mexico) for improvements suggested during review. The contributions to the study by EKK and YS were
supported by Australian Biological Resource Study grant RF213-19 to EKK.
References
Amoureux L, Rullier F, Fishelson, L (1978) Systématique et Écologie d’Annélides Polychètes
de la presqu’îl du Sinai. Israel Journal of Zoology 27(2–3): 57–163.
Augener H (1918) Polychaeta. Beiträge zur Kenntnis der Meeresfauna Westafrikas 2(2):
67–625. http://biodiversitylibrary.org/page/7172280
Augener H (1922) Über litorale polychaeten von Westindien. Sitzungsberichte der Naturforschender Freunde zu Berlin 1922(3–5): 38–53. http://biodiversitylibrary.org/page/43656381
Augener H (1925) Die Polychaeten der Südsee-Expedition der Hamburgischen wissenschaftliche Stiftung 1908–1909. Mitteilungen der Zoologisches Staatsinstitut und zoologisches
Museum, Hamburg 41: 53–70.
Augener H (1927) Polychaeten von Neu-Pommern. Sitzungsberichte der Gesellschaft der
naturforschende Freunde zu Berlin 1926: 119–152.
Augener H (1934) Polychaeten aus den Zoologischen Museen von Leiden und Amsterdam. IV
(Schluss). Zoölogische Mededeelingen Rijks Museum van Natuurlijke Historie Leiden 17:
67–160. http://www.repository.naturalis.nl/record/318471
Bailey-Brock JH (1987) The polychaetes of Fanga’uta Lagoon and coral reefs of Tongatapu,
Tonga, with discussion of the Serpulidae and Spirorbidae. Bulletin of the Biological Society
of Washington 7: 280–294.
Bailey-Brock JH (1991) Tubeworms (Serpulidae, Polychaeta) collected from sewage outfalls,
coral reefs and deep waters off the Hawaiian Islands, including a new Hydroides species.
Bulletin of Marine Science 48(2): 198–207. http://www.ingentaconnect.com/contentone/
umrsmas/bullmar/1991/00000048/00000002/art00006
Bastida-Zavala JR, ten Hove HA (2002) Revision of Hydroides Gunnerus, 1768 (Polychaeta:
Serpulidae) from the Western Atlantic Region. Beaufortia 52(9): 103–178.
Bastida-Zavala JR, ten Hove HA (2003) Revision of Hydroides Gunnerus, 1768 (Polychaeta:
Serpulidae) from the Eastern Pacific Region and Hawaii. Beaufortia 53(4): 67–110.
Bastida-Zavala JR, de León González JA (2002) A new species of Hydroides (Polychaeta:
Serpulidae) from western Mexico. Journal of the Marine Biological Association of the
United Kingdom 82(3): 389–393. doi: 10.1017/S0025315402005623
Bean W (1844) A supplement of new species. In: Thorpe C. British Marine Conchology, Edward
Lumley, London, 263–267. doi: 10.5962/bhl.title.11208
Bellan G (2001) Polychaeta. In: Costello MJ et al. (Eds) European register of marine species: a checklist of the marine species in Europe and a bibliography of guides to their identification. Collection
Patrimoines Naturels 50: 214–231. http://www.vliz.be/imisdocs/publications/77636.pdf
feminine Hydroides
45
Benedict JE (1887) Descriptions of ten species and one new genus of annelids from the dredgings of the U.S. Fish Commission Steamer Albatross. Proceedings of the United States
National Museum 9: 547–553. doi: 10.5479/si.00963801.9-594.547
Ben-Eliahu MN (1972) A description of Hydroides steinitzi n. sp. (Polychaeta: Serpulidae)
from the Suez Canal with remarks on the serpulid fauna of the Canal. Israel Journal of
Zoology 21(2): 77–81. http://www.tandfonline.com/doi/abs/10.1080/00212210.1972.
10688351
Ben-Eliahu MN, Hove HA ten (1992) Serpulids, Annelida: Polychaeta, along the Mediterranean
coast of Israel—New population build-ups of Lessepsian migrants. Israel Journal of Zoology
38(1): 35–53. http://www.tandfonline.com/doi/abs/10.1080/00212210.1992.10688664
Ben-Eliahu MN, Hove HA ten (2011) Serpulidae (Annelida: Polychaeta) from the Suez
Canal—From a Lessepsian Migration Perspective. Zootaxa 2848 (Monograph): 1–147.
http://www.mapress.com/zootaxa/list/2011/2848.html
Billard A (1907) Hydroïdes de la Collection Lamarck du Muséum de Paris. I Plumulariidae.
Annales des sciences naturelles. Zoologie (Series 9) 5: 319–335. http://biodiversitylibrary.
org/page/34908193
Bosc LAG (1802) Histoire naturelles des vers, contenant leur description et leurs moeurs; avec
figures dessinées d’après nature. Tome Premiere. De l’imprimerie de Guilleminet, chez
Deterville, Paris, 324 pp. doi: 10.5962/bhl.title.64025
Brown RW (1956) Composition of scientific words. Reprint edition. Smithsonian Institution
Press, Washington, 882 pp.
Bush KJ (1905) Tubicolous annelids of the tribes Sabellides and Serpulides from the Pacific
Ocean. Harriman Alaska Expedition 12: 169–346. doi: 10.5962/bhl.title.27846
Bush KJ (1910) Description of new serpulids from Bermuda with notes on known forms from
adjacent regions. Proceedings of the Academy of Natural Sciences, Philadelphia 62: 490–501.
http://biodiversitylibrary.org/page/26294605
Chamberlin RV (1919) New polychaetous annelids from Laguna Beach, California. Journal
of Entomology and Zoology. Pomona College 11(1): 1–23. http://biodiversitylibrary.org/
page/12263520
Chen M, Wu BL (1978) Two new species of the genus Hydroides (Polychaeta, Serpulidae) from
the Xisha Islands, Guandong Province, China. Studia Marina Sinica 12: 141–145.
Chen M, Wu BL (1980) Two new species of the genus Hydroides (Polychaeta, Serpulidae).
Oceanologia et Limnologia Sinica 11(3): 247–250.
Claparède E (1870a) Les Annélides Chétopodes du Golfe de Naples. Seconde partie. Ordre
IIme. Annélides Sédentaires. Mémoires de la Société de physique et d’histoire naturelle de
Geneve 20(1): 1–225. http://biodiversitylibrary.org/page/2071623
Claparède E (1870b) Les Annélides Chétopodes du Golfe de Naples. Supplement. Mémoires
de la Société de physique et d’histoire naturelle de Geneve 20(2): 365–542. http://biodiversitylibrary.org/page/2094031
Colwin AL, Colwin LH (1961) Fine structure of the spermatozoon of Hydroides hexagonus
(Annelida), with special reference to the acrosomal region. Journal of Biophysical and
Biochemical Cytology 10(2): 211–230. doi: 10.1083/jcb.10.2.211
46
Geoffrey B. Read et al. / ZooKeys 642: 1–52 (2017)
Costello DP, Davidson ME, Eggers A, Fox MH, Henley C (1957) Methods for Obtaining and
Handling Marine Eggs and Embryos. Marine Biological Laboratory & Lancaster Press,
Woods Hole, Massachusetts, 247 pp. doi: 10.5962/bhl.title.1023
David N, Gosselin, M (2002) Gender agreement of avian species names. Bulletin of the British
Ornithologists’ Club 122: 14–49.
Day JH (1951) The Polychaet [sic] Fauna of South Africa. Part I. The intertidal and estuarine Polychaeta of Natal and Mosambique. Annals of the Natal Museum 12(1): 1–67. http://content.
ajarchive.org/cdm4/document.php?CISOROOT=/03040798&CISOPTR=905&REC=12
Day JH (1967) A monograph on the Polychaeta of Southern Africa. Part 2. Sedentaria.
Trustees of the British Museum (Natural History) London, 459–878. doi: 10.5962/bhl.
title.8596
Day JH (1973) New Polychaeta from Beaufort, with a key to all species recorded from North
Carolina. National Oceanic and Atmospheric Administration Technical Report NMFS
CIRC-375: 1–140. doi: 10.5962/bhl.title.62852
Delle Chiaje S (1828) Memorie sulla storia e notomia degli animali senza vertebre del Regno
di Napoli. vol. 3. Stamperia della Societa' Tipografica, Napoli, 232 pp. [plates published
separately in 1830, dated “1822”] http://www.biodiversitylibrary.org/item/40491
Dew B (1959) Serpulidae (Polychaeta) from Australia. Records of the Australian Museum 25:
19–56. doi: 10.3853/j.0067-1975.25.1959.654
Ehlers E (1887) Reports on the results of dredging, under the direction of L. F. Pourtalès,
during the years 1868–1870, and of Alexander Agassiz, in the Gulf of Mexico (1877–78),
and in the Caribbean Sea (1878–79), in the U.S. Coast Survey steamer “Blake”, LieutCom. C. D. Sigsbee, U.S.N. and Commander J. R. Bartlett, U.S.N., commanding. XXXI.
Report on the Annelids. Memoirs of the Museum of Comparative Zoology, Harvard 15:
1–335. doi: 10.5962/bhl.title.65639
Ehlers E (1913) Die Polychaeten-Sammlungen der Deutschen Südpolar-Expedition 1901–
1903. Deutsche Südpolar-Expedition 13(Zoologie V): 397–598. http://biodiversitylibrary.
org/page/2139283
Fauvel P (1918) Annélides polychètes des côtes d’Arabie récoltées par M. Ch. Pérez. Bulletin
du Muséum d’Histoire Naturelle, Paris 24(5): 329–344. http://biodiversitylibrary.org/
page/5037658
Fauvel P (1919) Annélides polychètes des îles Gambier et Touamotou. Bulletin du Muséum
National d’Histoire Naturelle, Paris 25(5): 336–343. http://biodiversitylibrary.org/
page/5027005
Fischli H (1903) Polychäten von Ternate. Senckenbergische Naturforschende Gesellschaft
Abhandlungen 25(1): 90–136. http://biodiversitylibrary.org/page/25232322
Frauenfeld G von (1855) Naturhistorische Fragmente: gesammelt auf einer Reise am Rothen
Meere im Frühjahre 1855. Sitzungsberichte der Mathematisch-Naturwissenschaftlichen
Classe der Kaiserlichen Akademie der Wissenschaften (Wien) 18: 66–87. http://biodiversitylibrary.org/page/6441585
Gibbs PE (1971) The polychaete fauna of the Solomon Islands. Bulletin of the British Museum
(Natural History) Zoology 21(5): 101–211. doi: 10.5962/bhl.part.10154
feminine Hydroides
47
Grave BH (1937) Hydroides hexagonus. In: Galtsoff PS, Lutz FE, Welch PS, Needham JG (Eds)
Culture methods for invertebrate animals. Comstock Publishing Company, Ithaca, New
York, 185–187. doi: 10.5962/bhl.title.6012
Grave BH, Oliphant JF (1930) The longevity of unfertilized gametes. Biological Bulletin
(Woods Hole) 59(3): 233–239. doi: 10.2307/1536993
Gravier C (1906) Sur les Annélides Polychètes de la Mer Rouge (Serpulides). Bulletin du Muséum
d’Histoire Naturelle, Paris 12: 110–115. http://biodiversitylibrary.org/page/5021287
Grube AE (1868) Beschreibungen einiger von Georg Ritter von Frauenfeld gesammelter Anneliden
und Gephyreen des rothen Meeres. Verhandlungen der kaiserlich-königlichen zoologischbotanischen Gesellschaft in Wien 18: 629–650. http://biodiversitylibrary.org/page/25254604
Grube AE (1870) Beschreibungen neuer oder weniger bekannter von Hrn. Ehrenberg
gesammelter Anneliden des rothen Meeres. Monatsbericht der Koniglich Preussischer
Akademie der Wissenschaften zu Berlin 1869: 484–521. http://www.biodiversitylibrary.
org/page/36276705
Grube AE (1878a) Einige neue anneliden aus Japan. Jahres-Bericht der Schlesischen Gesellschaft
für Vaterländische Cultur 55 [1878 for 1877 year]: 104–106. http://biodiversitylibrary.
org/page/37206819
Grube AE (1878b) Annulata Semperiana. Beiträge zur Kenntniss der Annelidenfauna der Philippinen. Memoires de L’Académie Impériale.des Sciences de St.-Pétersbourg VII Série
25(8): 1–300. doi: 10.5962/bhl.title.85345
Gunnerus JE (1768) Om nogle Norske Coraller. Det Kongelige Norske Videnskabernes
Selskabs Skrifter 4: 38–73. http://gdz.sub.uni-goettingen.de/dms/load/img/?PPN=PPN481641912_0004&IDDOC=273812
Hadfield MG (1998) The D P Wilson lecture. Research on settlement and metamorphosis
of marine invertebrate larvae: past, present and future. Biofouling 12(1–3): 9–29. doi:
10.1080/08927019809378343
Harper D (2001–2016). Online Etymology Dictionary. http://www.etymonline.com/index.php
Hartman O (1956) Polychaetous annelids erected by Treadwell, 1891 to 1948, together with a
brief chronology. Bulletin of the American Museum of Natural History 109(2): 239–310.
http://hdl.handle.net/2246/1145
Hartman O (1959) Catalogue of the polychaetous annelids of the world. Parts 1 & 2. Allan
Hancock Foundation Occasional Paper 23: 1–628
Hartman O (1965) Supplement and index to the catalogue of the polychaetous annelids of
the World, including additions and emendations since 1959. Allan Hancock Foundation
Occasional Paper 23 Supplement and Index: 1–197. http://digitallibrary.usc.edu/cdm/ref/
collection/p15799coll82/id/19369
Hartman O (1969) Atlas of the sedentariate polychaetous annelids from California. Allan Hancock Foundation, University of Southern California, 812 pp.
Hartmann-Schröder G (1962) Die Polychaeten des Eulitorals. In: Hartmann-Schröder G and
Hartmann G. Zur Kenntnis des Eulitorals der chilenischen Pazifikküste und der argentinischen
Küste Südpatagoniens unter besonderer Berücksichtigung der Polychaeten und Ostracoden.
Mitteilungen aus dem Hamburgischen zoologischen Museum und Institut 60: 57–270.
48
Geoffrey B. Read et al. / ZooKeys 642: 1–52 (2017)
Haswell WA (1883) On some new Australian tubicolous annelids. Proceedings of the Linnean
Society of New South Wales 7: 633–638. http://biodiversitylibrary.org/page/6462370
Hove HA ten (1990) Description of Hydroides bulbosus sp. n. (Polychaeta, Serpulidae), from the
Iranian Gulf, with a terminology for opercula of Hydroides. Beaufortia 41(16): 115–120.
Hove HA ten, Ben-Eliahu MN (2005) On the identity of Hydroides priscus Pillai 1971—Taxonomic confusion due to ontogeny in some serpulid genera (Annelida: Polychaeta: Serpulidae). Senckenbergiana Biologica 85(2): 127–145.
Hove HA ten, Kupriyanova, EK (2009) Taxonomy of Serpulidae (Annelida, Polychaeta): The
state of affairs. Zootaxa 2036: 1–125. http://www.mapress.com/j/zt/issue/view/2173
Imajima M (1976a) Serpulid polychaetes from Tanega-shima, southwest Japan. Memoirs of
the National Science Museum 9: 123–143. http://ci.nii.ac.jp/naid/110004313275
Imajima M (1976b) Serpulinae (Annelida, Polychaeta) from Japan I. the genus Hydroides.
Bulletin of the National Science Museum, Tokyo, Series A (Zoology) 2(4): 229–248.
http://ci.nii.ac.jp/naid/40005325183
Imajima M (1982) Serpulinae (Polychaetous Annelids) from the Palau and Yap Islands, Micronesia. Proceedings of the Japanese Society of Systematic Zoology 23: 37–55. http://ci.nii.
ac.jp/naid/110002339223
Imajima M, ten Hove HA (1986) Serpulinae (Annelida, Polychaeta) from Nauru, the Gilbert
Islands (Kiribati) and the Solomon Islands. Proceedings of the Japanese Society of
Systematic Zoology 32: 1–16. http://ci.nii.ac.jp/naid/110002339356
Imajima M, ten Hove HA (1989) Two new species of serpulids (Annelida, Polychaeta) from
Sesoko Island, Okinawa. Bulletin of the National Science Museum, Tokyo, Series A
(Zoology) 15(1): 11–17. http://ci.nii.ac.jp/naid/110004311713
International Commission on Zoological Nomenclature [ICZN] (1961) International Code
of Zoological Nomenclature, adopted by the XV International congress of Zoology. The
International Trust for Zoological Nomenclature, London, 176 pp. doi: 10.5962/bhl.
title.50303
ICZN (1985) International Code of Zoological Nomenclature Third Edition adopted by the XX
General Assembly of the International Union of Biological Sciences. The International Trust
for Zoological Nomenclature, London, 338 pp. doi: 10.5962/bhl.title.50611
ICZN (1999) International Code of Zoological Nomenclature Fourth edition adopted by
the International Union of Biological Sciences. The International Trust for Zoological
Nomenclature, London, 306 pp. doi: 10.5962/bhl.title.50608
Iroso I (1921) Revisione dei Serpulidi e Sabellidi del Golfo di Napoli. Pubblicazioni della
Stazione Zoologica di Napoli 3: 47–91.
Jones ML (1962) On some polychaetous annelids from Jamaica, the West Indies. Bulletin of the
American Museum of Natural History 124(5): 169–212. http://hdl.handle.net/2246/1213
Kinberg JGH (1867 (or late 1866)) Annulata nova. [Continuatio.]. Öfversigt af Kongl. [sic]
Vetenskapsakademiens förhandlingar, Stockholm 23(9): 337–357. http://biodiversitylibrary.org/page/32287795
Kupriyanova EK, Sun Y, Hove, HA ten, Wong E, Rouse GW (2015) Serpulidae (Annelida) of Lizard
Island, Australia. Zootaxa 4019(1): 275–353. doi: 10.11646/zootaxa.4019.1.13
Lakshmana Rao MV (1969) Fouling serpulids from some Indian harbours. Journal of the
Timber Development Association of India 15(2): 1–20.
feminine Hydroides
49
de León González JA (1990) Dos serpúlidos nuevos para el Pacifico Mexicano y duplicidad
opercular en Hydroides crucigerus [sic] (Polychaeta: Serpulidae). Revista de biologia tropical
38(2A): 335–338. http://revistas.ucr.ac.cr/index.php/rbt/article/view/25383
Lewis CT, Short C (1891) Harpers Latin dictionary. A new Latin dictionary: founded on
the translation of Freund’s Latin-German lexicon Harper, New York, 2019 pp. https://
archive.org/details/LewisAndShortANewLatinDictionary
Marenzeller E von (1885) Südjapanische Anneliden. II. Ampharetea, Terebellacea, Sabellacea, Serpulacea. Denkschriften der Akademie der Wissenschaften MathematischNaturwissenschaftliche Classe. Wien. 49(2): 197–224. http://biodiversitylibrary.org/
page/7102598
Marion AF (1875) Sur les Annélides de Marseille. Revue des sciences naturelle. Montpellier
4(1): 301–312. http://biodiversitylibrary.org/page/14526461
Marion AF, Bobretzky N (1875) Étude des Annélides du golfe de Marseille. Annales des Sciences Naturelles, Paris (series 6) 2: 1–106. http://biodiversitylibrary.org/page/33155516
McIntosh WC (1923) A monograph of the British marine annelids. Volume IV Part II. Polychaeta. Sabellidae to Serpulidae with additions to the British marine Polychaeta during the
publication of the monograph. Ray Society 4(2): 251–538.
Moen TL (2006) A translation of Bishop Gunnerus’ description of the species Hydroides norvegicus
with comments on his Serpula triqvetra. Scientia Marina 70 (Supplement 3): 115–123. doi:
10.3989/scimar.2006.70s3115
Monro CCA (1933) The Polychaeta Sedentaria collected by Dr. C. Crossland at Colón, in the
Panama Region, and the Galapagos Islands during the Expedition of the S.Y. ‘St. George’.
Proceedings of the Zoological Society of London 103(4): 1039–1092. doi: 10.1111/
j.1096-3642.1933.tb01640.x
Monro CCA (1937) Polychaeta. The John Murray Expedition 1933–1934 Scientific Reports.
4(8): 243–321. http://biodiversitylibrary.org/page/49518757
Monro CCA (1938) On a new species of serpulid polychate from the Shoreham Harbour
Canal, Sussex. Annals and Magazine of Natural History (Series 11) 1(1): 73–78. doi:
10.1080/00222933808526742
Mörch OAL (1863) Revisio critica Serpulidarum. Et Bidrag til Rørormenes Naturhistorie.
Naturhistorisk Tidsskrift, København, Ser. 3, 1: 347–470. http://www.archive.org/details/
naturhistoriskti01copeuoft
Murray A, Hutchings P, Pillai TG (2010) Note on Hydroides malleolaspinus from the Kimberleys of Western Australia (Polychaeta: Serpulidae). Records of the Australian Museum
62(3): 393–394. doi: 10.3853/j.0067-1975.62.2010.1564
Okuda S (1934) Some tubicolous annelids from Hokkaido. Journal of the Faculty of Science,
Hokkaido University, Series 6, Zoology 3(4): 233–246. http://hdl.handle.net/2115/26971
Okuda S (1937) Annelida polychaeta in Onagawa Bay and its vicinity. I. Polychaeta Sedentaria.
Science Reports of the Tohoku Imperial University. Fourth Series Biology 12(1): 45–69.
Philippi A (1844) Einige Bemerkungen über die Gattung Serpula, nebst Aufzählung der von
mir im Mittelmeer mit dem Thier beobachteten Arten. Archiv für Naturgeschichte Berlin
10(1): 186–198. doi: 10.5962/bhl.part.29558
Pillai TG (1960) Some marine and brackish water serpulid polychaeta from Ceylon, including
new genera and species. Ceylon Journal of Science (Biological Sciences) 3(1): 1–40.
50
Geoffrey B. Read et al. / ZooKeys 642: 1–52 (2017)
Pillai TG (1961) Annelida Polychaeta of Tambalagam Lake, Ceylon. Ceylon Journal of Science
(Biological Sciences) 4(1): 1–40. http://dl.nsf.ac.lk/handle/1/7600
Pillai, TG (1965) Annelida Polychaeta from the Philippines and Indonesia. Ceylon Journal of
Science (Biological Sciences) 5(2): 112–177. http://dl.nsf.ac.lk/handle/1/7733
Pillai TG (1971) Studies on a collection of marine and brackish-water polychaete annelids of the
family Serpulidae from Ceylon. Ceylon Journal of Science (Biological Sciences) 9(2): 88–130.
Pillai TG (1972) A review and revision of the systematics of the genera Hydroides and Eupomatus together with an account of their phylogeny and zoogeography. Ceylon Journal of
Science (Biological Sciences) 10(1): 7–31. http://dl.nsf.ac.lk/handle/1/7815
Pillai TG (2009) Descriptions of new serpulid polychaetes from the Kimberleys of Australia
and discussion of Australian and Indo-West Pacific species of Spirobranchus and superficially similar taxa. Records of the Australian Museum 61(2): 93–199. doi: 10.3853/j.00671975.61.2009.1489
Pixell HLM (1913) Polychaeta of the Indian Ocean, together with some species from the Cape
Verde Islands. The Serpulidae, with a classification of the genera Hydroides and Eupomatus.
Transactions of the Linnean Society of London, Series 2 16: 69–92. doi: 10.1111/j.10963642.1914.tb00125.x
Pratt HS (1916) A manual of the common invertebrate animals, excluding insects. A. C.
McClurg and Co., Chicago, 737 pp. doi: 10.5962/bhl.title.1245
Read GB, Fauchald K (Ed.) (2016) World Polychaeta database. http://www.marinespecies.
org/polychaeta
Read GB, Hove HA ten (2016) Hydroides Gunnerus, 1768. http://www.marinespecies.org/
polychaeta/aphia.php?p=taxdetails&id=129566
Ribas J, Hutchings PA (2015) Lizard Island Polychaete Workshop: sampling sites and a checklist of polychaetes. Zootaxa 4019(1): 7–34. doi: 10.11646/zootaxa.4019.1.4
Rioja E (1941a) Estudios Anelidologicos. II. Observaciones acerca de varias especies del genero
Hydroides Gunnerus (sensu Fauvel) de las costas Mexicanas del Pacifico. Anales del Instituto de Biologia (Mexico) 12(1): 161–175.
Rioja E (1941b) Estudios Anelidologicos. III. Datos para el conocimiento de la fauna de poliquetos
de las costas del pacifico de Mexico. Anales del Instituto de Biologia, Mexico 12(2): 669–746.
Rioja E (1942) Estudios Anelidologicos. IV. Observaciones sobre especies de serpulidos de las
costas del Pacifico de Mexico, con descripcion de una especie nueva del genero Hydroides.
Anales del Instituto de Biologia (Mexico) 13(1): 125–135.
Rioja E (1958) Estudios Anelidologicos. XXI. Observaciones acerca de algunas especies de
serpulidos de los generos Hydroides y Eupomatus de las costas Mexicanas del Golfo de
Mexico. Anales del Instituto de Biologia, Mexico 28(1/2): 247–266 [1957 issue]
Schmarda LK (1861) Neue wirbellose Thiere beobachtet und gesammelt auf einer Reise um die
Erdr [sic] 1853 bis 1857 von Ludwig K. Schmarda. Erster Band. Turbellarien, Rotatorien
und Anneliden. Zweite Hälfte. Wilhelm Engelmann, Leipzig, 164 pp. doi: 10.5962/bhl.
title.14426
Stearn WT (1983) Botanical Latin. 3rd edition revised. David & Charles, London, 566 pp.
Straughan D (1967a) Marine Serpulidae (Annelida: Polychaeta) of eastern Queensland and New
South Wales. Australian Journal of Zoology 15(1): 201–261. doi: 10.1071/ZO9670201
feminine Hydroides
51
Straughan D (1967b) Some Serpulidae (Annelida: Polychaeta) from Heron Island, Queensland. University of Queensland Papers [Great Barrier Reef Committee, Heron Island
Research Station] 1(2): 27–45.
Sun R, Yang D (2000) Study on Hydroides (Polychaeta: Serpulidae) from waters off China. I.
Studia Marina Sinica 42: 116–135. [Chinese with English summary]
Sun R, Yang D (2014) Annelida Polychaeta III Sabellida. Fauna Sinica Invertebrata 54: 1–493.
Sun Y, Wong, E, Hove HA ten, Hutchings PA, Williamson JE, Kupriyanova EK (2015) Revision of the genus Hydroides (Annelida: Serpulidae) from Australia. Zootaxa 4009(1): 1–99.
doi: 10.11646/zootaxa.4009.1.1
Sun Y, Wong E, Tovar-Hernández MA, Williamson JE, Kupriyanova EK (2016). Is Hydroides
brachyacantha (Serpulidae : Annelida) a widespread species? Invertebrate Systematics
30(1): 41–59. doi: 10.1071/IS15015
Tovar-Hernández MA, Villalobos-Guerrero TF, Kupriyanova EK, Sun Y (2016 [online 2015]).
A new fouling Hydroides (Annelida, Sabellida, Serpulidae) from southern Gulf of California. Journal of the Marine Biological Association of the United Kingdom 96(3): 693–705.
doi: 10.1017/S0025315415000764
Townsend CH (1916) Voyage of the ‘Albatross’ to the Gulf of California in 1911. Bulletin of the
American Museum of Natural History 35(24): 399–476. http://hdl.handle.net/2246/1019
Treadwell AL (1902) The polychaetous annelids of Porto Rico. Bulletin of the United States
Fish Commission. 20, 2: 181–210. http://www.marinespecies.org/polychaeta/aphia.
php?p=sourcedetails&id=126990
Treadwell AL (1929) New species of polychaetous annelids in the collections of the
American Museum of Natural History from Porto Rico, Florida, Lower California,
and British Somaliland. American Museum Novitates 392: 1–13. http://hdl.handle.
net/2246/3789
Treadwell AL (1931) Three new species of polychaetous annelids in the collections of the
United States National Museum. Proceedings of the U.S. National Museum 80(2902):
1–5. http://biodiversitylibrary.org/page/7614489
Treadwell AL (1939) Polychaetous Annelids of Porto Rico and Vicinity. New York Academy
of Sciences. Scientific Survey of Porto Rico and the Virgin Islands 16(2): 151–319. https://
archive.org/details/scientificsurvey160104newy
Verrill AE (1873) VIII. Report upon the invertebrate animals of Vineyard Sound and the adjacent waters, with an account of the physical characters of the region. Report of the United
States Commission of Fish and Fisheries, 757 pp. doi: 10.5962/bhl.title.11688
Welter-Schultes FW (2013) Guidelines for the Capture and Management of Digital Zoological
Names Information. Version 1.1, [Version 1.0 released 2012] 126 pp. http://www.gbif.
org/orc/?doc_id=2784
Wu BL, Chen M (1981) Two new species of Hydroides (Polychaeta: Serpulidae) from South
China Sea. Oceanologia et Limnologia Sinica 12(4): 354–357.
Zibrowius H (1968) Étude morphologique, systématique et écologique des Serpulidae
(Annelida Polychaeta) de la région de Marseille. Recueil des Travaux de la Station Marine
d’Endoume 43(59): 81–252.
52
Geoffrey B. Read et al. / ZooKeys 642: 1–52 (2017)
Zibrowius H (1971) Les espèces Méditerranéennes du genre Hydroides (Polychaeta Serpulidae).
Remarques sur le pretendu polymorphisme de Hydroides uncinata. Tethys 2: 691–746.
http://paleopolis.rediris.es/benthos/REF/som/T-pdf/1970_2-3-691.pdf
Zibrowius H (1972a) Deux espèces nouvelles du genre Hydroides (Polychaeta, Serpulidae) de
la Mer Jaune et des Iles Banda. Bulletin de la Société Zoologique de France 97(1): 89–93.
Zibrowius H (1972b) Hydroides norvegica Gunnerus, Hydroides azorica n.sp. et Hydroides capensis
n. sp. (Polychaeta Serpulidae) espèces vicariantes dans l’Atlantique. Bulletin du Muséum
d’Histoire Naturelle, Paris, Series 3, 33(39): 433–446.
Zibrowius H (1972c) Mise au point sur les espèces Méditeranéennes de Serpulidae (Annelida
Polychaeta) décrites par Stefano delle Chiaje (1822–1829, 1841–1844) et Oronzio Gabriele
Costa (1861). Tethys 4(1): 113–126. http://paleopolis.rediris.es/benthos/REF/som/Tpdf/1972_4-1-113.pdf
Zibrowius H (1973) Serpulidae (Annelida Polychaeta) des côtes ouest de l’Afrique et des archipels
voisins. Annales Musee Royal de l’Afrique Centrale, Ser. 8, Sciences Zoologique 207: 1–93.
Zibrowius H (1978) Introduction du polychète Serpulidae Japonais Hydroides ezoensis sur la côte
Atlantique Française et remarques sur la propagation d’autres espèces de Serpulidae. Tethys
8(2): 141–150. http://paleopolis.rediris.es/benthos/REF/som/T-pdf/1976_8-2-141.pdf
Zoological Museum, Ivan Franko National University of Lviv (undated) Benedykt Dybowski
(12.V.1833–31.I.1930). http://zoomus.lviv.ua/en/dybovsky/ [Accessed on 28 July 2016]
Supplementary material 1
Hydroides type-species data summary
Authors: Geoffrey B. Read, Harry A. ten Hove, Yanan Sun, Elena K. Kupriyanova
Data type: spreadsheet
Explanation note: Name categories, original-name WoRMS links, geolocations, locations, etc.
Copyright notice: This dataset is made available under the Open Database License
(http://opendatacommons.org/licenses/odbl/1.0/). The Open Database License
(ODbL) is a license agreement intended to allow users to freely share, modify, and
use this Dataset while maintaining this same freedom for others, provided that the
original source and author(s) are credited.