Guide to identification of Lumbrineridae - NMBAQC
Guide to identification of Lumbrineridae - NMBAQC
Guide to identification of Lumbrineridae - NMBAQC
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<strong>Guide</strong> <strong>to</strong> <strong>identification</strong> <strong>of</strong> <strong>Lumbrineridae</strong> (Polychaeta) in north<br />
east Atlantic waters<br />
Eivind Oug<br />
Norwegian Institute for Water Research (NIVA),<br />
Regional Office Sorlandet,<br />
Jon Lilletuns vei 3,<br />
NO-4879 Grimstad, Norway<br />
eivind.oug@niva.no<br />
________________________________________________________________________________<br />
Version 3.2, February 2012<br />
Prepared for <strong>NMBAQC</strong> workshop 2010<br />
Dove Marine Labora<strong>to</strong>ry, Cullercoats, Tynemouth, UK
2<br />
Table <strong>of</strong> contents<br />
Introduction 3<br />
Morphology 3<br />
Identification 4<br />
Geographical area 5<br />
Status <strong>of</strong> the taxonomy 5<br />
Explanation <strong>of</strong> terms 6<br />
Key <strong>to</strong> genera in north east Atlantic waters 7<br />
Abyssoninoe Orensanz, 1990 10<br />
Augeneria Monro, 1930 12<br />
Cenogenus Chamberlin, 1919 14<br />
Eranno Kinberg, 1865 16<br />
Helmutneris Carrera-Parra, 2006 17<br />
Hilbigneris Carrera-Parra, 2006 18<br />
Lumbricalus Frame, 1992 19<br />
Lumbrinerides Orensanz, 1973 20<br />
Lumbrineriopsis Orensanz, 1973 21<br />
Lumbrineris Blainville, 1828 23<br />
Ninoe Kinberg, 1865 26<br />
Scole<strong>to</strong>ma Blainville, 1828 27<br />
Species <strong>of</strong> uncertain status 29<br />
References 30<br />
Acknowledgements<br />
The present guide has been prepared for the <strong>NMBAQC</strong> taxonomic workshop 2010. It is based on a<br />
previous version prepared for <strong>NMBAQC</strong> 2003. I am indebted <strong>to</strong> David Hall and Tim Worsfold at<br />
Thomson Unicomarine Ltd for organising the workshop and for practical help. The guide and previous<br />
versions have been developed during studies <strong>of</strong> polychaetes collected in environmental moni<strong>to</strong>ring in<br />
Norwegian coastal and <strong>of</strong>fshore waters, and taxonomic studies in North East Atlantic and Arctic areas<br />
(projects BIOFAR, BIOICE, COBICE, Swedish Kattegat surveys, NDP). I am grateful <strong>to</strong> several users<br />
<strong>of</strong> previous guide versions for comments and suggestions <strong>to</strong> improvements. The work has received<br />
financial support from <strong>NMBAQC</strong> and from the Norwegian Academy <strong>of</strong> Science and Letters (DNVA)<br />
through the Norwegian Deepwater Programme (NDP).
Introduction<br />
<strong>Lumbrineridae</strong> from NE Atlantic waters<br />
The <strong>Lumbrineridae</strong> are generally long cylindrical bristle worms <strong>of</strong> small <strong>to</strong> medium size with rather<br />
simple external morphology. The largest species in European waters may reach a length <strong>of</strong> about 35<br />
cm, but most species are 2-10 cm in length. Lumbrinerids are mostly found in s<strong>of</strong>t-sediment<br />
environments where they burrow in<strong>to</strong> the substrate. They are largely considered <strong>to</strong> be carnivores, but<br />
some species have been reported <strong>to</strong> feed on plant fragments or detritus (Fauchald & Jumars 1979).<br />
The lumbrinerids belong in the ‘eunicid’ group <strong>of</strong> polychaetes which is characterised by the<br />
presence <strong>of</strong> a complicated jaw apparatus in the phaynx. The jaw apparatus is <strong>of</strong> the ‘labidognath’ type<br />
(Orensanz 1990) and is basically similar <strong>to</strong> the jaws found in Eunicidae and Onuphidae. In traditional<br />
faunal works the eunicid group has been treated as an order (e.g. Fauchald 1977, Hartmann-Schröder<br />
1996), whereas in newer taxonomy the group has been placed without particular rank within the main<br />
division Aciculata (Rouse & Pleijel 2001).<br />
The most important taxonomic characters are found in jaw structures, types and shapes <strong>of</strong><br />
chaetae, colour <strong>of</strong> aciculae and shape <strong>of</strong> parapodial lobes. Jaw characters have been extensively used<br />
for definition <strong>of</strong> genera in recent years, which has lead <strong>to</strong> a more stable and consistent system for<br />
species classification in the family. As a consequence, several new genera have been erected whereas<br />
extant genera have been redefined (see Orensanz 1973, 1990; Frame 1992; Carrera-Parra 2006a).<br />
Orensanz (1990), Frame (1992) and Hilbig (1995) have accounted for the taxonomic his<strong>to</strong>ry <strong>of</strong> the<br />
family and have discussed the importance <strong>of</strong> the diagnostic characters.<br />
A remarkably large number <strong>of</strong> species <strong>of</strong> lumbrinerids have been described worldwide (i.e.,<br />
more than 200). Many <strong>of</strong> the descriptions, however, especially in the older literature, are rather general<br />
and do not mention characters which presently are known <strong>to</strong> be vital for species discrimination. This<br />
has led <strong>to</strong> much confusion about species identities and synonymies. Whereas several species problems<br />
have been clarified over the years, many species are still insufficiently characterised and <strong>of</strong> uncertain<br />
status.<br />
Morphology<br />
Lumbrinerids have a long cylindrical body with generally similar segments (Figure 1). In most species<br />
the width gradually decreases <strong>to</strong>wards the pygidium. The pros<strong>to</strong>mium is well-developed and is usually<br />
without eyes or appendages, but in some genera small occipital antennae may be found in the fold<br />
between pros<strong>to</strong>mium and peris<strong>to</strong>mium. The peris<strong>to</strong>mium consists <strong>of</strong> two rings (not true segments)<br />
without parapodia or chaetae. Tentacular cirri are absent. The following chaetigers carry parapodia<br />
which are mostly uniramous, but <strong>of</strong>ten a bundle <strong>of</strong> thin no<strong>to</strong>aciculae and a short knoblike no<strong>to</strong>podium<br />
are present. Ventral cirri are absent. Chaetae include simple limbate chaetae, composite spinigers, and<br />
simple and composite hooded hooks (Figure 1).<br />
Figure 1. Features <strong>of</strong> <strong>Lumbrineridae</strong>: anterior body (Lumbrineris), parapod from anterior body (Lumbrineris),<br />
chaetae (limbate chaeta, composite spiniger (Lumbricalus), long-bladed simple hook, multidentate composite<br />
hook, bidentate hook (<strong>to</strong>p, Lumbrinerides), simple multidentate hook)<br />
3
4<br />
The jaw apparatus is comprised <strong>of</strong> dorsal maxillae and ventral mandibles (Figure 2). The maxillae<br />
consist <strong>of</strong> a pair <strong>of</strong> posterior carriers and four or five pairs <strong>of</strong> maxillary plates. The carriers are broad,<br />
mostly short, and are attached <strong>to</strong> the most posterior pair <strong>of</strong> maxillae (mx I) by a firm ’click-joint’<br />
connection (labidognath arrangement). The maxillary plates are usually referred <strong>to</strong> by numbers (roman<br />
numerals) from I <strong>to</strong> V (note that in older literature different numbering systems were <strong>of</strong>ten used). In<br />
addition <strong>to</strong> the numbered plates other more or less well-developed structures may be found, variously<br />
referred <strong>to</strong> as ligaments, bridles or attachment lamellae. The mandibles are generally <strong>of</strong> simple<br />
structure and formed as rods with flared anterior ends (Figure 2). Morphological variation <strong>of</strong> maxillae<br />
among genera found in North Atlantic waters is shown in Figure 3.<br />
Figure 2. Jaw apparatus <strong>of</strong> <strong>Lumbrineridae</strong>. Left: maxillae (from Lumbrineris). Right: mandibles (from<br />
Lumbrineris). Roman numerals indicate established numbering system for maxillary elements.<br />
Figure 3. Maxillae <strong>of</strong> <strong>Lumbrineridae</strong>. Left <strong>to</strong> right: Lumbrineris, Abyssoninoe, Augeneria, Eranno,<br />
Lumbrinerides, Lumbrineriopsis<br />
Identification<br />
Maxillary structures can most conveniently be examined by making a dorsal incision in the region <strong>of</strong><br />
chaetiger 1-2 <strong>to</strong> 5-6 (Figure 4). The most important structures, mx III and mx IV, are usually oriented<br />
more or less vertically with teeth projecting upwards just in front <strong>of</strong> the tip <strong>of</strong> mx I (Figure 4 right). In<br />
cases when the pharynx is partly protruded and the maxillae appear in the mouth opening, a ventral<br />
incision at the side <strong>of</strong> the midline may be made instead <strong>of</strong> a dorsal incision. However, it is then usually<br />
necessary <strong>to</strong> break <strong>of</strong>f the anterior part <strong>of</strong> the mandibles <strong>to</strong> examine mx III and IV.<br />
Important characters <strong>of</strong> parapodia and chaetae are mostly found in anterior part <strong>of</strong> the body, usually<br />
from chaetiger 1 <strong>to</strong> chaetiger 20-30. Chaetae should be examined using a compound microscope<br />
(400x). In small specimens, chaetae can be viewed directly from specimens placed with the ventral<br />
side uppermost under a cover-slip. In larger specimens it is usually necessary <strong>to</strong> remove a parapodium<br />
for examination. This also applies <strong>to</strong> examining the colour <strong>of</strong> the aciculae. In some cases parapodial<br />
lobes on posterior chaetigers should also be examined.
<strong>Lumbrineridae</strong> from NE Atlantic waters<br />
Figure 4. Left: Dorsal incision <strong>to</strong> expose maxillae, Lumbrineris near coccinea, western Greenland. Right:<br />
Lumbrineris latreilli, east <strong>of</strong> Iceland. Numbering <strong>of</strong> maxillae indicated. Pho<strong>to</strong>: Eivind Oug<br />
Geographical area<br />
The area covered by this guide encompasses European waters from the Bay <strong>of</strong> Biscay <strong>to</strong> western<br />
Norway and the Norwegian Sea. This covers coastal inshore waters, continental shelves and deep sea<br />
areas in the north-east North Atlantic and the Norwegian Sea. In addition, some species from nearby<br />
areas (Barents Sea and Arctic waters, north-west North Atlantic) which may be found in the area have<br />
been included.<br />
About 30 lumbrinerid species are known from the area. The highest number <strong>of</strong> species is reported<br />
from the English Channel, the North Sea and shelf areas <strong>of</strong> the Faroes and Iceland.<br />
General faunistic works treating lumbrinerids in North East Atlantic waters include Fauvel (1923),<br />
Hartmann-Schröder (1971, 1996), Miura (1980), Winsnes (1980), George & Hartmann-Scröder (1985)<br />
and Kirkegaard (1992). Several <strong>of</strong> the species found in the area are not included in the ‘standard’<br />
works used for species <strong>identification</strong>.<br />
Data for the distribution <strong>of</strong> the species have been assembled from i.a. Fauvel (1923), Hartman (1965),<br />
Hartman & Fauchald (1971), Miura (1980), Winsnes (1980), Frame (1992), Mackie & Erséus (1997),<br />
Hansson (1998), Brattegard & Holthe (2001), Dauvin et al. (2003), Oug (2005), Carrera-Parra (2006a,<br />
b), and Aguirrezabalaga & Carrera-Parra (2006). In addition, my own observations on material from<br />
the North Sea and Norwegian coastal waters have also been taken in<strong>to</strong> account.<br />
Status <strong>of</strong> the taxonomy<br />
Several <strong>of</strong> the species in the area are insufficiently characterised. In some cases, current descriptions in<br />
‘standard’ <strong>identification</strong> literature may seem <strong>to</strong> mix characters from several similar species making<br />
species <strong>identification</strong> problematical. In addition, specimens with specific characters that do not fit with<br />
the current species descriptions are regularly found. Whether such specimens represent intraspecific<br />
variants or separate species is not known. The genera with most problems are Abyssoninoe, Augeneria<br />
and Lumbrineris. The present guide mostly comprises named species with good diagnostic characters,<br />
but some regularly found forms <strong>of</strong> uncertain status also are included (referred <strong>to</strong> as ‘cf ‘or ‘near’<br />
related species). A few currently un-named forms are also included.<br />
V<br />
I<br />
IV<br />
III<br />
I<br />
I<br />
II<br />
I<br />
I<br />
I<br />
5
6<br />
Explanation <strong>of</strong> terms<br />
Acicula – supporting bristle embedded in the parapodium<br />
Attachment lamellae – additional pieces <strong>of</strong> the maxillary apparatus, usually situated lateral <strong>to</strong> or below<br />
the individual maxillae. Rod-shaped attachment lamellae situated lateral <strong>to</strong> mx I are by some authors<br />
referred <strong>to</strong> as “bridles”.<br />
Bidentate hook – hook with two strong distinctly separated teeth<br />
Branchial lobe – cylindrical <strong>to</strong> short digitiform process extending from the parapodium and equipped<br />
with capillary blood vessels for gas exchange. Present in some genera and species.<br />
Carrier – part <strong>of</strong> the maxillary apparatus situated posterior <strong>to</strong> the first maxillae (mx I) and connected<br />
<strong>to</strong> it by a ‘click-joint’<br />
Chaetiger – segment bearing chaetae<br />
Composite hooded hook – hook with a distinct subdistal joint separating the outer part (blade) from the<br />
shaft. Hood with a more or less distinct constriction at the position <strong>of</strong> the joint.<br />
Composite spiniger – simple gradually tapering chaeta provided with a joint<br />
Connecting ligament – additional piece placed between and connecting the bases <strong>of</strong> mx I and mx II.<br />
Also referred <strong>to</strong> as connecting lamella.<br />
Limbate chaeta – simple gradually tapering chaeta provided with a brim along most <strong>of</strong> the length,<br />
<strong>of</strong>ten gently curved. Found in anterior body <strong>of</strong> all species.<br />
Maxillae – paired and usually the most prominent elements <strong>of</strong> the maxillary apparatus. Maxillae are<br />
generally numbered from I <strong>to</strong> V from behind and forwards (different numbering systems may be found<br />
in older literature).<br />
Maxillary apparatus – dorsal part <strong>of</strong> the jaws consisting <strong>of</strong> several individual elements: four or five<br />
pairs <strong>of</strong> maxillae, carrier, connecting ligaments and attachment lamellae<br />
Maxillary teeth – well-defined projections on the maxillae directed inwards or upwards. In some<br />
genera knoblike projections or swellings may be found in addition <strong>to</strong> defined teeth, by some authors<br />
also referred <strong>to</strong> as teeth.<br />
Multidentate hooded hook – hook with a rounded apex with several small teeth encapsulated by a<br />
transparent hood. Only type <strong>of</strong> chaeta in posterior body <strong>of</strong> most species.<br />
Occipital antenna – small antenna placed posteriorly on the pros<strong>to</strong>mium; in lumbrinerids in the fold<br />
between pros<strong>to</strong>mium and peris<strong>to</strong>mium. May also be referred <strong>to</strong> as nuchal antenna or nuchal papilla.<br />
Pseudocomposite hooded hook – hook with an incomplete separation between the outer part (blade)<br />
and shaft. Usually with a constriction <strong>of</strong> the hood as in composite hooks.
Key <strong>to</strong> genera in north east Atlantic waters<br />
<strong>Lumbrineridae</strong> from NE Atlantic waters<br />
1. Composite or pseudocomposite hooded hooks present in anterior part <strong>of</strong> body …………….. 2<br />
- All hooded hooks simple, anterior body may have limbate chaetae only ……………………. 5<br />
2. Chaetae include composite spinigers in addition <strong>to</strong> composite and simple hooded hooks ….<br />
……………….…………………………………………………………………… Lumbricalus<br />
- No composite spinigers …………….…………………………………………........................ 3<br />
3. Mx IV forming a squarish plate with whitish central area and black margins. Mx V absent.<br />
Occipital antennae may be present at posterior border <strong>of</strong> pros<strong>to</strong>mium …….............. Augeneria<br />
- Mx IV a triangular <strong>to</strong> oblong evenly black or brown plate with a marked <strong>to</strong>oth. Mx V present,<br />
rounded ………………………………………………………………………………………. 4<br />
4. Mx II almost as long as mx I (about 2/3 or 3/4 <strong>of</strong> the length), connected <strong>to</strong> mx I with narrow <strong>to</strong><br />
moderately wide connecting ligament. Aciculae pale, brown or black .................. Lumbrineris<br />
7
8<br />
- Mx II about half as long as mx I, connected <strong>to</strong> mx I by wide connecting ligament. Aciculae<br />
yellow …………………………………………………………………………..…. Hilbigneris<br />
5. Anterior chaetigers with one or more postchaetal branchial lobes …………………………… 6<br />
Ninoe Cenogenus<br />
- No branchial lobes in anterior chaetigers ………….…............................................................. 7<br />
6. Branchiae with multiple lobes. Number <strong>of</strong> lobes increasing from one at chaetiger 5-6 <strong>to</strong> four <strong>to</strong><br />
six at chaetiger 20-30, then rapidly decreasing ................................................................. Ninoe<br />
- One short digitiform branchia present at each chaetiger in anterior body, gradually<br />
diminishing posteriorly. Anterior parapodia usually with long slender hooded hooks. Aciculae<br />
black. ......................................................................................................................... Cenogenus<br />
7. Anterior <strong>of</strong> body with limbate chaetae and modified long hooded hooks. Most anterior hooks<br />
extremely slender, resembling limbate chaetae in outline, gradually becoming shorter through<br />
following chaetigers and developing in<strong>to</strong> regular hooded hooks at chaetiger 15-25. Aciculae<br />
yellow. Mx IV and V fused forming a hemisphaerical structure, with a strong dorsal <strong>to</strong>oth at<br />
posterior border……................................................................................................ Abyssoninoe<br />
chaet 5-10 chaet 15-25<br />
- Anterior <strong>of</strong> body with limbate chaetae and regular hooded hooks or with limbate chaetae only<br />
………………………………………………………………………………………………… 8
<strong>Lumbrineridae</strong> from NE Atlantic waters<br />
8. Hooded hooks bidentate ............................................................................................................ 9<br />
- Hooded hooks multidentate ..................................................................................................... 10<br />
9. Hooded hooks with a subdistal <strong>to</strong>oth or spur. Mx IV with a fringe <strong>of</strong> denticles on inner<br />
margin. Carriers long and slim, with narrow anterior part ……………........... Lumbrineriopsis<br />
- Hooded hooks without subdistal <strong>to</strong>oth. Mx IV without teeth or denticles. Carriers wide, with<br />
arcuate anterior border. ........................................................................................Lumbrinerides<br />
10. Maxillary apparatus with five pairs <strong>of</strong> maxillae …………………………………………….. 11<br />
- Maxillary apparatus with four pairs <strong>of</strong> maxillae, mx III and mx IV with whitish central area<br />
…………………………………………………………………………………...... Helmutneris<br />
11. Mx II short, about half the length <strong>of</strong> mx I, with distinct rather narrow connecting ligament<br />
from the base <strong>of</strong> mx II <strong>to</strong> posterior part <strong>of</strong> mx I …..….................................................. Eranno<br />
- Mx II almost as long as mx I, with short connecting ligament from mx II <strong>to</strong> posterior part <strong>of</strong><br />
mx I ………………………………………………………………………….……… Scole<strong>to</strong>ma<br />
9
10<br />
Abyssoninoe Orensanz, 1990<br />
Characteristics. Pros<strong>to</strong>mium conical. Parapodia uniramous, with simple limbate chaetae and simple,<br />
multidentate hooded hooks. Anterior hooks extremely long, tapering, resembling limbate chaetae,<br />
becoming gradually shorter from chaetiger 10-15, for 5 <strong>to</strong> 15 chaetigers, after which they appear as<br />
clearly defined hooks. Aciculae yellow. Mx III unidentate. Mx IV and V fused, mx IV with a <strong>to</strong>oth<br />
protruding from posterior border.<br />
Taxonomy. The genus is rather well-defined by the modified hooded hooks in anterior chaetigers and<br />
the fusion <strong>of</strong> mx IV and V. Species discrimination is problematical, however. Characters which have<br />
been used for species separation include the most anterior position <strong>of</strong> ’normal-shaped’ hooded hooks<br />
and the development <strong>of</strong> prolonged digitiform vascularised lobes in far posterior segments. Abyssoninoe<br />
hibernica was redescribed by Parapar et al. (1994). Abyssoninoe scopa was synonymised with<br />
A. hibernica by Parapar et al. (1994), but is here considered <strong>to</strong> be a separate species. The number <strong>of</strong><br />
species in the region is uncertain.<br />
1. Anterior body with prolonged tapering hooks at least <strong>to</strong> chaetiger 15, posterior parapodia with<br />
prolonged digitiform lobes …………………………………………………………………. 2<br />
- Anterior body with prolonged tapering hooks <strong>to</strong> chaetiger 10-15, posterior parapodia with<br />
short rounded prechaetal and short conical postchaetal lobes ………………………………<br />
……………….………………………………. Abyssoninoe cf abyssorum (McIn<strong>to</strong>sh, 1885)<br />
Length 30-50 mm, width 1-1.5 mm<br />
Atlantic deep water, Norwegian Sea,<br />
?Norwegian fjords, 500-1100 m<br />
Figs from left: Anterior end; limbate<br />
chaeta; modified hooded hooks<br />
chaetiger 3,7,8,10; posterior hooded<br />
hook; carrier and right mx I-IV. From<br />
Orensanz (1990)<br />
2. Clearly defined hooded hooks appear at chaetiger 15-20, far posterior parapodia with<br />
prolonged digitiform prechaetal and postchaetal lobes……………………………………..<br />
…………………………………………………….. Abyssoninoe hibernica (McIn<strong>to</strong>sh, 1903)<br />
[=A. scopa aequilobata (Winsnes, 1981)]<br />
Length 40-60 mm, width 1-1.4 mm<br />
North Sea, British Isles, France, Norwegian<br />
coast, moderate depths<br />
Figs from left: Anterior end; maxillae<br />
(left mx III and right mx I, II omitted);<br />
limbate chaeta; slender hooded hook<br />
chaetiger 8; detail <strong>of</strong> same; hooded<br />
hook chaetiger 25; posterior hooded<br />
hook; parapodium 15; far posterior<br />
parapodium. From Winsnes (1980,<br />
1981) and Parapar et al. (1994)
<strong>Lumbrineridae</strong> from NE Atlantic waters<br />
- Clearly defined hooded hooks appear at about chaetiger 25 or further back, far posterior<br />
parapodia with digitiform postchaetal lobe, prechaetal lobe small ……………………….……<br />
.......................................................................................... Abyssoninoe scopa (Fauchald, 1974)<br />
[ = A. pseud<strong>of</strong>ragilis (Amoureux, 1977)]<br />
Length 30-60 mm, width 1-2 mm<br />
Fjords in western and northern<br />
Norway, NE Atlantic deep water,<br />
Bay <strong>of</strong> Biscay, 200-1200 m.<br />
Figs from left: Anterior end;<br />
maxillae; parapodium 2; parapodium<br />
15; far posterior parapodium. From<br />
Fauchald (1974) and Winsnes (1980)<br />
11
12<br />
Augeneria Monro, 1930<br />
Characteristic. Pros<strong>to</strong>mium conical or broadly rounded, with or without small occipital antennae<br />
dorsally at border <strong>to</strong> peris<strong>to</strong>mium. Parapodia with simple and composite multidentate hooded hooks.<br />
Mx IV squarish, with whitish central and dark peripheral areas. Mx V absent.<br />
Taxonomy. The genus is characterised by the shape <strong>of</strong> mx IV. The number <strong>of</strong> species in the area is<br />
uncertain. Only two species, A. algida and A. riojai, are well diagnosed. Most specimens from shelf<br />
and inshore waters agree reasonably well with Augeneria tentaculata from southern Atlantic and<br />
Antarctic waters (Monro 1930). Augeneria algida was redescribed by Winsnes (1987).<br />
1. Pros<strong>to</strong>mium with eight small occipital antennae. Anterior parapodia with small prechaetal and<br />
rounded postchaetal lobes, parapodia from about chaetiger 15 with distinctly outdrawn<br />
prechaetal and postchaetal lobes. Aciculae dark ………………………..………………………<br />
…………………………………….. Augeneria riojai Aguirrezabalaga & Carrera-Parra, 2006<br />
Length > 100 (?) mm, width 4.5 mm<br />
Bay <strong>of</strong> Biscay, 400-600 m<br />
Figs from left: Parapodium 26;<br />
composite hooded hook; simple<br />
hooded hook; maxillae. From<br />
Aguirrezabalaga & Carrera-Parra<br />
(2006).<br />
- Pros<strong>to</strong>mium with three occipital antennae or without antennae. Parapodia with small<br />
prechaetal and conical postchaetal lobes. Aciculae light yellow……………………………2<br />
2. Anterior parapodia with long pseudocomposite <strong>to</strong> composite more or less twisted hooded<br />
hooks. Simple hooks present from about chaetiger 20 .…….. Augeneria algida (Wirén, 1901)<br />
Length > 60 mm, width 2.5-3.5 mm<br />
Norwegian Sea, Arctic, in deep<br />
water with temperatures < 0 °C;<br />
?Bay <strong>of</strong> Biscay<br />
Figs from left: Anterior end;<br />
pseudocomposite hooks;<br />
parapodium 15; maxillae. From<br />
Winsnes (1987).<br />
- Anterior parapodia with straight distinctly composite hooded hooks ……………………… 3
<strong>Lumbrineridae</strong> from NE Atlantic waters<br />
3. Composite hooded hooks with short blades (length: width = about 5:1). Simple hooded hooks<br />
present from about chaetiger 15 ……………….…… Augeneria cf tentaculata Monro, 1930<br />
Length 30-60 mm, width 1.5-2 mm<br />
N Atlantic, North Sea, Norwegian<br />
coast<br />
Figs from left: Anterior end;<br />
composite hooded hook chaetiger 5;<br />
posterior hooded hook; maxillae.<br />
From Orensanz (1990).<br />
- Composite hooded hooks with long blades (length: width = about 8:1). Simple hooded hooks<br />
from chaetiger 15-20 ………………………………………….……………… Augeneria sp.<br />
Length > 50 mm, width 1.5-2 mm<br />
Norwegian Sea, in deep water<br />
(1000-2000 m) with temperatures<br />
< 0 °C.<br />
Figure: Composite hooded hooks<br />
from anterior chaetiger (original)<br />
Remarks: This form may represent the same species as Augeneria sadko<br />
(Annenkova, 1952) from deep water in the Greenland Sea. Winsnes (1987)<br />
indicated that A. sadko could be synonymous with A. algida. They are here<br />
considered <strong>to</strong> be separate species. The taxonomy <strong>of</strong> Augeneria in northern and<br />
Arctic waters is unclear and needs <strong>to</strong> be further studied.<br />
13
14<br />
Cenogenus Chamberlin, 1919 (= Paraninoe Levenstein, 1977)<br />
Characteristics. Pros<strong>to</strong>mium conical, with a short occipital antenna. Chaetae include simple limbate<br />
chaetae and simple multidentate hooded hooks. Anterior parapodia with a knoblike <strong>to</strong> digitiform<br />
postchaetal branchial lobe, extending back over a variable number <strong>of</strong> median segments. Aciculae<br />
black. Mx III and IV unidentate. Mx V lacking.<br />
Taxonomy. The genus is characterised by the presence <strong>of</strong> a postchaetal branchial lobe in anterior and<br />
mid body segments, black aciculae and the lack <strong>of</strong> mx V. Most species are found in deep water. The<br />
species in North Atlantic waters were treated by Miura (1980). The genus Cenogenus was reinstated<br />
and emended by Carrera-Parra (2001). Paraninoe Levenstein is regarded as a junior synonym <strong>of</strong><br />
Cenogenus.<br />
1. Anterior parapodia with simple limbate chaetae and long-bladed slender hooks ………….. 2<br />
- Anterior parapodia with simple limbate chaetae only, mx II with 2 teeth ……………………<br />
…………........................... ……………………………….… Cenogenus fusca (Moore, 1911)<br />
Length > 60 mm, width up <strong>to</strong> 4 mm<br />
N Atlantic, north <strong>of</strong> Ireland, deep<br />
water <strong>to</strong> abyssal<br />
Figs from left: Anterior end ventral;<br />
middle parapodium; maxillae. From<br />
Miura (1980).<br />
2. Parapodia with a short digitiform branchial lobe, mx II with 3 teeth ………………..………..<br />
…………….................................................................... Cenogenus brevipes (McIn<strong>to</strong>sh, 1903)<br />
Length > 60 mm, width 1.5-2.3 mm<br />
N Atlantic, north <strong>of</strong> Ireland, deep<br />
water <strong>to</strong> abyssal<br />
Figs from left: Anterior end ventral;<br />
parapodium 5 (<strong>to</strong>p) and parapodium<br />
40 (bot<strong>to</strong>m); maxillae. From Miura<br />
(1980) and Frame (1992).
<strong>Lumbrineridae</strong> from NE Atlantic waters<br />
- Parapodia with a small rudimentary branchial lobe, mx II with 4 teeth ………………..………<br />
…………….……………………........Cenogenus sp. (= Paraninoe minuta sensu Miura 1980)<br />
Length 20 (?) mm, width 1.2 mm<br />
N Atlantic, north <strong>of</strong> Ireland, Bay <strong>of</strong><br />
Biscay, deep water <strong>to</strong> abyssal<br />
Figs from left: Anterior body;<br />
pros<strong>to</strong>mium ventral; anterior hooded<br />
hook; posterior hooded hook;<br />
maxillae. From Miura (1980).<br />
Remarks: This species may possibly belong in Abyssoninoe, but it is stated <strong>to</strong><br />
have black aciculae and postchaetal branchial lobes, which are characters <strong>of</strong><br />
Cenogenus<br />
15
16<br />
Eranno Kinberg, 1865<br />
Characteristics. Pros<strong>to</strong>mium conical, occipital antenna may be present. Parapodia uniramous, with<br />
simple limbate chaetae and simple multidentate hooded hooks. Mx II short, about half <strong>of</strong> length <strong>of</strong> mx<br />
I, connected <strong>to</strong> base <strong>of</strong> mx I by narrow connecting ligament. Mx V partially fused <strong>to</strong> mx IV or free.<br />
Taxonomy. The genus is characterised by the short mx II being connected <strong>to</strong> the base <strong>of</strong> mx I with a<br />
long narrow connecting ligament. Eranno was treated by Orensanz (1990) and Frame (1992). Only<br />
one species is known from the area. The species was redescribed by Hartman (1948).<br />
Anterior parapodia with simple limbate chaetae and long-bladed hooded hooks. Aciculae<br />
yellow. Mx II half the length <strong>of</strong> mx I, mx III unidentate …….. Eranno bifrons Kinberg, 1865<br />
[=E. ehlersii tenuisetis (McIn<strong>to</strong>sh, 1885); fide<br />
Miura 1980]<br />
Length > 60 mm, width 1.5-2 mm<br />
N Atlantic, deep water.<br />
Figs from left: parapodium 19; longbladed<br />
hooded hook from parapodium<br />
19; hooded hook from posterior<br />
chaetiger; right mx III-V; maxillae.<br />
Original drawing.<br />
Remarks: This species is very close <strong>to</strong> E. petersenae Frame, 1992 from NW<br />
Atlantic. E. petersenae is characterised by having elongated digitate<br />
parapodial lobes in posterior body.
Helmutneris Carrera-Parra, 2006<br />
<strong>Lumbrineridae</strong> from NE Atlantic waters<br />
Characteristics. Parapodia uniramous, with simple limbate chaetae and simple multidentate hooded<br />
hooks. Mx III and IV with whitish central area, unidentate, mx V absent.<br />
Taxonomy. The genus is characterised by the pigmentation <strong>of</strong> mx III and mx IV and the lack <strong>of</strong> mx V.<br />
The genus has been recently established <strong>to</strong> incorporate species previously included in Lumbrineris.<br />
Only one species is known from the area.<br />
Anterior parapodia with limbate chaetae (in chaetiger 1 – ca. 30) and simple hooded hooks.<br />
Most anterior hooks with up <strong>to</strong> 8 teeth <strong>of</strong> similar size, median and posterior hooks with large<br />
proximal <strong>to</strong>oth. Prechaetal lobes insignificant, postchaetal lobes well developed, digitiform <strong>to</strong><br />
<strong>to</strong>ngue-shaped. Aciculae yellow …………………...…. Helmutneris flabellicola (Fage, 1936)<br />
Length > 10 mm, width 0.2-0.5 mm<br />
Associated with deep water corals.<br />
West coast <strong>of</strong> Ireland, Bay <strong>of</strong> Biscay<br />
Figs from left: maxillae; hooded hook<br />
from chaetiger 4; hooded hook from<br />
chaetiger 30; parapodium 4;<br />
parapodium 20. From Carrera-Parra<br />
(2006a).<br />
17
18<br />
Hilbigneris Carrera-Parra, 2006<br />
Characteristics. Parapodia uniramous, with simple limbate chaetae and composite and simple<br />
multidentate hooded hooks. Mx II distinctly shorter than mx I, connected <strong>to</strong> mx I by wide connecting<br />
ligament. Mx V small, placed outside <strong>of</strong> mx III and IV.<br />
Taxonomy. The genus has been recently established <strong>to</strong> incorporate species previously included in<br />
Lumbrineris. Only one species is known from the area. The species is recently described (Carrera-<br />
Parra 2006a) from specimens previously identified as L. latreilli.<br />
Anterior parapodia with <strong>to</strong>ngue-shaped, obliquely conical postchaetael lobes. Composite<br />
multidentate hooded hooks in chaetiger 1- ca. 25, with long blades. Aciculae yellow. Mx III<br />
bidentate ………………...………………………….. Hilbigneris pleijeli Carrera-Parra, 2006<br />
Length 40-50 mm, width 1.6 mm<br />
NW France, English Channel,<br />
British Isles, shallow water<br />
Figs from left: maxillae;<br />
composite hooded hook; simple<br />
hooded hook; parapodium 16;<br />
parapodium 136. From Carrera-<br />
Parra (2006a).
Lumbricalus Frame, 1992<br />
<strong>Lumbrineridae</strong> from NE Atlantic waters<br />
Diagnosis. Pros<strong>to</strong>mium conical. Parapodia uniramous, with simple limbate chaetae, composite<br />
spinigers, and composite and simple multidentate hooded hooks. Mx III with one <strong>to</strong> three teeth. Mx IV<br />
unidentate, mx V free, placed outside <strong>of</strong> mx IV.<br />
Taxonomy. The genus is characterised by the presence <strong>of</strong> composite spinigers in the anterior part <strong>of</strong><br />
the body. The spinigers are situated in the middle part <strong>of</strong> the bundle <strong>of</strong> chaetae. The genus was revised<br />
by Carrera-Parra (2004). Most species are found in warm and temperate waters. Only one species is<br />
known from the area.<br />
Anterior parapodia (1- ca. 30), with limbate chaetae, composite spinigers and composite<br />
hooded hooks with long blades. All chaetae reddish. Postchaetal lobe <strong>to</strong>ngue-shaped,<br />
obliquely conical. Aciculae black. Mx III unidentate with a subdistal swelling …………….<br />
……………………………… Lumbricalus campoyi Aguirrezabalaga & Carrera-Parra, 2006<br />
Length > 100 mm, width 4 mm<br />
Bay <strong>of</strong> Biscay, 900-1000 m<br />
Figs from left: parapodium 12;<br />
parapodium 140; composite spiniger;<br />
composite hooded hook; simple<br />
hooded hook; maxillae. From<br />
Aguirrezabalaga & Carrera-Parra<br />
(2006).<br />
19
20<br />
Lumbrinerides Orensanz, 1973<br />
Characteristics. Pros<strong>to</strong>mium long, distally pointed. Parapodia uniramous, with simple limbate chaetae<br />
and simple bidentate hooded hooks. Aciculae yellow or black. Mx I usually with 1-2 accessory teeth<br />
on inner margin. Mx III with two aliform expansions. Mx IV without teeth. Mandibles usually fused<br />
for entire length.<br />
Taxonomy. The genus is characterised by the presence <strong>of</strong> bidentate hooded hooks and the shape <strong>of</strong> the<br />
maxillae. The species may be separated on the presence and position <strong>of</strong> small accessory teeth at the<br />
inner rim <strong>of</strong> mx I and the position <strong>of</strong> bidentate hooks. The genus was revised by Miura (1980) who<br />
reported three species from NE Atlantic waters.<br />
1. Mx I without accessory teeth ................................................................................................. 2<br />
- Mx I with one accessory <strong>to</strong>oth on inner border. Pros<strong>to</strong>mium long. Simple hooded hooks from<br />
chaetiger 6 ...................................................... Lumbrinerides crassicephala (Hartman, 1965)<br />
Length 20-30 (?) mm, width 0.6 mm<br />
North Atlantic, Faroe Islands, deep<br />
water<br />
Figs from left: anterior end with<br />
pharynx slightly everted; bidentate<br />
hook; maxillae. From Hartman<br />
(1965)<br />
2. Pros<strong>to</strong>mium very long, about three times as long as wide, 3-5 anterior parapodia reduced,<br />
bidentate hooks from chaetiger 1 .....................................Lumbrinerides laubieri Miura, 1980<br />
Length 20 (?) mm, width 0.3 mm<br />
Bay <strong>of</strong> Biscay, deep water<br />
Figs: anterior part <strong>of</strong> body; maxillae.<br />
From Miura (1980).<br />
- Pros<strong>to</strong>mium about twice as long as wide, 7-9 anterior parapodia reduced, bidentate hooks<br />
from chaetiger 2-6 …………………………..…….... Lumbrinerides amoureuxi Miura, 1980<br />
Length ?, width 1 mm<br />
Bay <strong>of</strong> Biscay, shallow <strong>to</strong> deep water<br />
(1100 m).<br />
Figs from left: anterior end; bidentate<br />
hook; maxillae. From Miura (1980).
Lumbrineriopsis Orensanz, 1973<br />
<strong>Lumbrineridae</strong> from NE Atlantic waters<br />
Characteristics. Parapodia uniramous, with simple limbate chaetae and simple bidentate hooded<br />
hooks. Aciculae yellow or black. Mx III with two aliform expansions. Mx IV finely denticulate.<br />
Pygidium rounded.<br />
Taxonomy. The genus is characterised by the presence <strong>of</strong> bidentate hooded hooks and the shape <strong>of</strong> the<br />
maxillae. The genus was revised by Miura (1980). Four species are known from NE Atlantic waters.<br />
1. Yellow aciculae .................................................................................................................... 2<br />
- Black aciculae ....................................................................................................................... 3<br />
2. Pros<strong>to</strong>mium prolonged ………….............…. Lumbrineriopsis paradoxa (Saint-Joseph, 1888)<br />
Length ?, width 0.5 mm<br />
France, English Channel, shallow water.<br />
Deep water, NE Atlantic and <strong>of</strong>f<br />
Bermuda.<br />
Figs from left: anterior end; parapodium<br />
from middle body; bidentate hook;<br />
maxillae. From Miura (1980).<br />
- Pros<strong>to</strong>mium short, slightly longer than wide ...........................................................................<br />
............................................................. Lumbrineriopsis sp. (L. paradoxa sensu Fauvel 1923)<br />
Length ?, width 1 mm<br />
France, English Channel, shallow water<br />
Figs from left: anterior end; limbate<br />
chaeta; bidentate hook; maxillae. From<br />
Fauvel (1923).<br />
3. Hooded hooks with 2-5 needle-shaped denticles between the two main teeth ……………….<br />
……............................................... Lumbrineriopsis tsushimaensis Imajima & Higuchi, 1975<br />
Length 50 mm, width 1 mm<br />
North Sea, 50-200 m<br />
Figs from left: anterior end; bidentate<br />
hook chaetiger 8; bidentate hook<br />
posterior chaetiger. From Imajima &<br />
Higuchi (1975).<br />
21
22<br />
- Hooded hooks with an open space between the two main teeth …………...............................<br />
................................................................................Lumbrineriopsis gasconiensis Miura, 1980<br />
Length 10-20 (?) mm, width 0.9 mm<br />
Bay <strong>of</strong> Biscay, deep water<br />
Figs from left: anterior end; bidentate<br />
hook; maxillae. From Miura (1980).
Lumbrineris Blainville, 1828, emended Carrera-Parra 2006b<br />
<strong>Lumbrineridae</strong> from NE Atlantic waters<br />
Characteristics. Pros<strong>to</strong>mium conical or globular. Parapodia uniramous, with limbate chaetae and<br />
simple and composite multidentate hooded hooks. Aciculae yellow or black. Maxillary apparatus with<br />
five pairs <strong>of</strong> maxillae, mx I and II <strong>of</strong> about equal size, mx III and IV with 1-2(4) teeth. Mx V freestanding,<br />
placed outside <strong>of</strong> mx IV.<br />
Taxonomy: The genus Lumbrineris was previously (e.g. Fauvel 1923) rather widely defined, but has<br />
gradually become more restricted as new genera have been erected for species with particular<br />
characteristics (Orensanz 1973, 1990; Frame 1992; Carrera-Parra 2006a, b). Several <strong>of</strong> the early<br />
described species have been imperfectly diagnosed and reported from world-wide areas (e.g. L.<br />
latreilli) due <strong>to</strong> confusion with similar species. The genus was revised by Carrera-Parra (2006b) who<br />
provided a new description <strong>of</strong> Lumbrineris latreilli based on type material. He also synonymised L.<br />
agas<strong>to</strong>s with L. futilis. The number <strong>of</strong> species in the region is uncertain. Small specimens with yellow<br />
aciculae and unidentate mx III may represent a species complex.<br />
1. Yellow or light brown aciculae ………………..…………................................................... 2<br />
- Black aciculae, mx III unidentate with a subdistal knob or swelling. Composite hooded hooks<br />
in chaetigers 1-20(23), with long blades .............……… Lumbrineris futilis (Kinberg, 1865)<br />
[= L. agas<strong>to</strong>s Fauchald, 1974; fide Carrera-<br />
Parra 2006b]<br />
Length > 100 mm, width 2.5-3 mm<br />
North Sea, British Isles, Norwegian<br />
coast, Faroe Islands, Bay <strong>of</strong> Biscay,<br />
moderate depths<br />
Figs from left: anterior end; parapodium<br />
6; composite hooded hook; simple<br />
hooded hook; maxillae. From Fauchald<br />
(1974; as L. agas<strong>to</strong>s) and Carrera-Parra<br />
(2006b).<br />
2. Mx III unidentate …………………………………………………………………………… 3<br />
- Mx III bidentate …………………………………………………………………………….. 5<br />
3. Composite hooded hooks with moderately long blade in anterior chaetigers (length: width =<br />
5.5-8:1) …..…………………………………… Lumbrineris cf. kerguelensis (Grube, 1878)<br />
Length > 60 mm, width 1.5-2.7 mm<br />
Central North Atlantic, north <strong>of</strong><br />
Ireland, depth > 2000 m.<br />
Figs from left: parapodium 15;<br />
parapodium 70; composite hooded<br />
hook, simple hooded hook; mx III-<br />
IV(from type specimen); composite<br />
hooded hook (specimen from<br />
Kerguelen). From Carrera-Parra<br />
(2006b) and McIn<strong>to</strong>sh (1885).<br />
- Composite hooded hooks with short blade in anterior chaetigers (length: width = 4-5:1)<br />
……………………………………………………………………………………………….. 4<br />
23
24<br />
4. Mx III with arcuate cutting edge leading <strong>to</strong> a ventral expansion approching the shape <strong>of</strong> a<br />
<strong>to</strong>oth (giving the impression <strong>of</strong> a plate with two widely separated teeth), middle and posterior<br />
simple hooded hooks with 4-8 small teeth ……... Lumbrineris near cingulata (Ehlers, 1897)<br />
(= Lumbrineris gracilis sensu Hartmann-Schröder<br />
1996, George & Hartmann-Schröder 1985; non<br />
Ehlers, 1868)<br />
Length 30-50 mm, width 0.8-1 mm<br />
France, British Isles, eastern and western<br />
North Atlantic, North Sea, shelf and coastal<br />
waters in southern and western Norway.<br />
Figs from left: Anterior end; mx III-IV;<br />
composite hooded hooks chaetiger 4;<br />
simple hook chaetiger 15; maxillae (from<br />
type <strong>of</strong> L. cingulata). From Winsnes (1980;<br />
as L. gracilis) and Carrera-Parra (2006b).<br />
- Mx III with slightly curved cutting edge, middle and posterior simple hooded hooks with 6-10<br />
small teeth ………..…………………….……………...... Lumbrineris aniara Fauchald, 1974<br />
Length 40-50 mm, width 0.9-1.3 mm<br />
North Sea, southern and western<br />
Norway, shelf and coastal waters,<br />
?Bay <strong>of</strong> Biscay<br />
Figs from left: anterior end; anterior<br />
parapodium; composite hooded hook;<br />
simple hooded hook; maxillae. From<br />
Fauchald (1974) and Carrera-Parra<br />
(2006b).<br />
Remarks: Specimens with characters in between L. aniara and L.near<br />
cingulata are regularly found in the area. In northern waters species with both<br />
composite and simple hooded hooks in anterior chaetigers occur (L.<br />
vanhoeffeni (Michaelsen, 1898): Greenland; L. mixochaeta Oug, 1998:<br />
northern Norway, Barents Sea)<br />
5. Pros<strong>to</strong>mium conical. Composite hooded hooks on chaetigers 1-20(24), with long blades in<br />
anterior setigers …………………......Lumbrineris latreilli Audouin & Milne-Edwards, 1834<br />
Length 100-200 mm, width 3-5 mm<br />
France, British Isles, North Atlantic <strong>to</strong><br />
Iceland, North Sea, Skagerrak, shallow<br />
<strong>to</strong> deep water.<br />
Figs from left: parapodium 18;<br />
parapodium 150; composite hooded<br />
hook from anterior chaetiger; simple<br />
hooded hook; maxillae. From Carrera-<br />
Parra (2006b).
<strong>Lumbrineridae</strong> from NE Atlantic waters<br />
- Pros<strong>to</strong>mium round, globular. Parapodia with well-developed postchaetal lobes. Blades <strong>of</strong><br />
composite hooded hooks short, <strong>of</strong> similar length throughout …...................................................<br />
………………………………………………..……… Lumbrineris cf coccinea (Renier, 1804)<br />
Length 50 mm, width 1.3 mm<br />
25<br />
W France, English channel, intertidal<br />
and shallow water<br />
Figs from left: Anterior end;<br />
parapodium 12; composite hooded<br />
hook; simple hooded hook; maxillae.<br />
From Fauvel (1923) and Carrera-<br />
Parra (2006b).
26<br />
Ninoe Kinberg, 1865<br />
Characteristics. Pros<strong>to</strong>mium conical, with a pair <strong>of</strong> dorsal slit-like organs. Parapodia uniramous, with<br />
simple limbate chaetae and simple multidentate hooded hooks. Anterior parapodia with a number <strong>of</strong><br />
digitiform postchaetal branchial lobes. Mx IV or mx III and IV with denticulate incisive edges.<br />
Taxonomy: The genus is characterised by the branched branchial lobes in the anterior part <strong>of</strong> the body<br />
and the dentition <strong>of</strong> mx III and IV. The genus is represented by a number <strong>of</strong> species in warm waters.<br />
One species is known from the area.<br />
Branchiae from chaetiger 5-6 <strong>to</strong> 31-39, up <strong>to</strong> five filaments from chaetiger 20, simple hooded<br />
hooks from chaetiger 7-15, mx III bidentate, mx IV with 7-8 fine teeth ……........…………<br />
............................................................................................ Ninoe armoricana Glemarec, 1968<br />
Length 30-40 mm, width 1.5 mm<br />
N Atlantic, Bay <strong>of</strong> Biscay,<br />
moderate depth<br />
Figs from left: anterior end;<br />
parapodium 24, anterior view;<br />
maxillae. From Glémarec (1968).
Scole<strong>to</strong>ma Blainville, 1828<br />
<strong>Lumbrineridae</strong> from NE Atlantic waters<br />
Characteristics. Pros<strong>to</strong>mium conical or globular, occasionally with a single occipital antenna.<br />
Parapodia uniramous, with simple limbate chaetae and simple multidentate hooded hooks. Aciculae<br />
yellow or black. Mx III unidentate or bidentate. Mx V free-standing, placed outside <strong>of</strong> mx IV.<br />
Taxonomy: Frame (1992) resurrected Scole<strong>to</strong>ma as a valid genus <strong>to</strong> encompass species with simple<br />
hooded hooks and simple limbate chaetae, which previously had been referred <strong>to</strong> Lumbrineris. As<br />
currently defined, Scole<strong>to</strong>ma and Lumbrineris are rather close, and are essentially distinguished only<br />
by the lack and presence <strong>of</strong> composite hooded hooks, respectively (Frame 1992, Carrera-Parra 2006a).<br />
Scole<strong>to</strong>ma impatiens (Claparède) has been synonymised with Lumbrineris tetraura (Schmarda) by<br />
various authors. Winsnes (1980) and Orensanz (1990), however, have clearly indicated that the two<br />
species are different. Scole<strong>to</strong>ma funchalensis (Kinberg) is poorly known and possibly confused.<br />
Note: Juvenile specimens <strong>of</strong> Lumbrineris and Hilbigneris may lack composite hooded hooks and key<br />
out as Scole<strong>to</strong>ma.<br />
1. Yellow or golden aciculae, mx III unidentate or bidentate …….............................................. 2<br />
- Dark brown or black aciculae, mx III unidentate or unidentate with subdistal swelling ......... 4<br />
2. Mx III unidentate, anterior chaetigers with limbate chaetae only, hooded hooks from chaetiger<br />
6-15 ...……………………………………………. Scole<strong>to</strong>ma atlantica sensu Hartman (1965)<br />
Length 25 mm, width ?<br />
Central and NW North Atlantic, deep<br />
water<br />
Figure: maxillae (mx V omitted)<br />
From Hartman (1965)<br />
- Mx III bidentate, anterior chaetigers with limbate chaetae and hooded hooks ……………… 3<br />
3. Capillary chaetae extending backwards <strong>to</strong> chaetiger 50-60 …………….……………………...<br />
..................................................................................... Scole<strong>to</strong>ma impatiens (Claparède, 1868)<br />
27<br />
[=Lumbrineris tetraura: Hartmann-Schröder<br />
1996, non Schmarda, 1861]<br />
Length > 100 mm, width 3-5 mm<br />
North Atlantic, widely distributed<br />
Figs from left: anterior end;<br />
parapodium 18; posterior hooded<br />
hook; maxillae. From Hartmann-<br />
Schröder (1996) (as L. tetraura).
28<br />
- Capillary chaetae limited <strong>to</strong> the first 10-20 chaetigers …………………………..……………<br />
... …………………………………………….... Scole<strong>to</strong>ma funchalensis sensu Fauvel (1923)<br />
Length 15-60 mm, width ?<br />
Bay <strong>of</strong> Biscay, English channel,<br />
British waters, shallow water<br />
Figs from left: limbate chaeta;<br />
hooded hook; anterior parapod:<br />
middle parapod. From Fauvel<br />
(1923).<br />
Remarks: This form could possibly represent juveniles <strong>of</strong> several species,<br />
also including species with composite hooks (Hilbigneris pleijeli)<br />
4. Mx III unidentate, anterior parapodia with short flap-like postchaetal lobes, occasionally with<br />
1-2 long hooded hooks, usually with limbate chaetae only …………………………………...<br />
………………………………………..……………… Scole<strong>to</strong>ma fragilis (O.F. Müller, 1776)<br />
Length 100-200 mm or more,<br />
width 4-12 mm<br />
North Sea, ?British Isles, Faroe<br />
Islands, Norwegian Sea, Arctic,<br />
shallow water <strong>to</strong> moderate depth<br />
Figs from left: anterior end<br />
ventral; parapodium 9; maxillae<br />
(left mx III-V omitted). From<br />
Winsnes (1980) and Frame<br />
(1992).<br />
- Mx III unidentate with a subdistal knob or swelling, anterior and middle parapodia with<br />
<strong>to</strong>ngue-shaped, obliquely conical postchaetael lobes, usually with one, occasionally with 2-6<br />
long hooded hooks ………….…........................ Scole<strong>to</strong>ma magnidentata (Winsnes, 1981)<br />
Mx VIV<br />
Mx II<br />
Mx III<br />
Length 100-200 mm, width 3-<br />
5 mm<br />
North Sea, British Isles, Faroe<br />
Islands, Norwegian coast <strong>to</strong><br />
L<strong>of</strong>oten islands, shallow water<br />
<strong>to</strong> moderate depth<br />
Figs from left: anterior end<br />
ventral; parapodium 25; mx<br />
II-IV. From Winsnes (1981).<br />
Remarks: Very close <strong>to</strong> S. acicularum (Webster & Benedict, 1887) from NW<br />
Atlantic
Species <strong>of</strong> uncertain status<br />
<strong>Lumbrineridae</strong> from NE Atlantic waters<br />
Lumbrineris minuta (Théel, 1879).<br />
The species was described from Novaya Zemlya. The original description is comprehensive and well<br />
illustrated (Théel 1879), but apparently mixes characters from several species. Oug (1998) examined<br />
parts <strong>of</strong> the original material and confirmed that it consists <strong>of</strong> two or more species. In faunal surveys<br />
the species name appears <strong>to</strong> have been used for several small species from Arctic and North Atlantic<br />
waters belonging in Abyssoninoe, Scole<strong>to</strong>ma and Lumbrineris. Oug (1998) concluded that the species<br />
is indeterminate and needs <strong>to</strong> be re-examined <strong>to</strong> assess its status.<br />
Lumbrineris labr<strong>of</strong>imbriata (Saint-Joseph, 1888)<br />
The species was described from Brittany, France. Comments <strong>to</strong> the species and description <strong>of</strong><br />
characters have been given by Laubier (1959) and Ramos (1976). The main characteristics are a<br />
denticulate inner margin <strong>of</strong> the mandibles and presence <strong>of</strong> both composite and simple hooded hooks in<br />
anterior chaetigers. Carrera-Parra (2006b), however, noted that these features occur during on<strong>to</strong>genetic<br />
development in Lumbrineris and considered the species as invalid.<br />
Lumbrineris cluthensis (Clark, 1953)<br />
The species was described from Firth <strong>of</strong> Clyde, west coast <strong>of</strong> Scotland. Several specimens have later<br />
been found in British coastal waters (O’Reilly & Mackie, pers. commn). It is characterised by having<br />
blunt spine-like hooks and limbate chaetae in all chaetigers. Hooded hooks are absent. The maxillary<br />
apparatus is supported by two pairs <strong>of</strong> carriers, <strong>of</strong> which the posterior is the largest (Clark 1953,<br />
George & Hartmann-Schröder 1985). The species does not comply with the definition <strong>of</strong> the<br />
<strong>Lumbrineridae</strong> due <strong>to</strong> its lack <strong>of</strong> hooded hooks and is possibly more closely affiliated <strong>to</strong> Oenonidae.<br />
Lumbrineris cluthensis<br />
Figs from left: Anterior end;<br />
mandibles; maxillae; parapodium 1;<br />
parapodium 85; chaetae. From Clark<br />
(1953)<br />
Scole<strong>to</strong>ma punctata (McIn<strong>to</strong>sh, 1885)<br />
The species was described from NW Atlantic deep water. According <strong>to</strong> the original description<br />
(McIn<strong>to</strong>sh 1885), it is characterised by a prolonged triangular pros<strong>to</strong>mium with six brown<br />
symmetrically arranged pigment spots at the posterior border. Hooded hooks are slender. Maxillae II<br />
are asymmetrical with two teeth on the left plate and several on the right, mx III and IV are unidentate.<br />
Mx V (‘accessory plates’) appear <strong>to</strong> be missing. Frame (1992) considered this species <strong>to</strong> belong in<br />
Scole<strong>to</strong>ma, but the shape <strong>of</strong> the pros<strong>to</strong>mium, the long hooks and the possible lack <strong>of</strong> mx V may<br />
suggest that it should be referred <strong>to</strong> Abyssoninoe or Cenogenus.<br />
29
30<br />
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31