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A new species of Cymbasoma (Copepoda: Monstrilloida) from Florida with a redescription of C. quadridens

Published online by Cambridge University Press:  14 May 2008

Eduardo Suárez-Morales  and
Dora Pilz
Eduardo Suárez-Morales*
Affiliation:
El Colegio de la Frontera Sur, Chetumal, Quintana Roo, Avenida Centenario, Km. 5.5. Chetumal, Quintana Roo, 77000, Mexico, Research Associate, National Museum of Natural History, Smithsonian Institution, Washington, DC, USA
Dora Pilz
Affiliation:
Research Associate II, Marine Biology and Fisheries, The Rosenstiel School of Marine and Atmospheric Sciences, University of Miami, Miami, Florida, USA
*
Correspondence should be addressed to: Eduardo Suárez-MoralesEl Colegio de la Frontera SurChetumal, Quintana Roo Avenida Centenario Km. 5.5. Chetumal Quintana Roo, 77000Mexico email: esuarez@ecosur.mx
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Abstract

Monstrilloid copepods from a series of zooplankton samples collected in the coastal area of Miami, Florida, were examined taxonomically. Several adult females were found to belong to an undescribed species of Cymbasoma within the C. rigidum species complex. It can be distinguished from its congeners by the body proportions, shape of head, cephalic ornamentation pattern, genital double somite with straight lateral margins, and structure of the fifth legs, which have a small, inner lobe arising from the distal 1/5 of segment. This species shows intraspecific variability in some characters (i.e. shape of head, cephalic and genital ornamentation patterns); hitherto, such variation has been reported only in another species of Cymbasoma. Our finding supports the idea of the nominal species C. rigidum comprising a taxonomic complex with several undescribed taxa. The other species recorded in the area was Cymbasoma quadridens Davis, 1947. This was first described from a single male specimen collected in 1947 in Biscayne Bay, Florida, and has not been recorded thereafter. The type specimen now being unusable, this species is redescribed herein based on another topotypic male specimen collected near the type locality. New data are added about the armature of its antennules and swimming legs, cuticular ornamentation, and structure of the genital complex.

Keywords

parasitic crustaceanszooplanktoncopepodsinvertebrate taxonomy
Type
Research Article
Information
Journal of the Marine Biological Association of the United Kingdom , Volume 88 , Issue 3 , May 2008 , pp. 527 - 533
Copyright
Copyright © Marine Biological Association of the United Kingdom 2008

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References

REFERENCES

Bourne, G.C. (1890) Notes on the genus Monstrilla, Dana. Quarterly Journal of Microscopical Science, New Series 30, 565–578, pl. XXXVII.Google Scholar
Bernier, R., Klassen, G. and Locke, A. (2002) Occurrence of Cymbasoma rigidum Thompson, 1888 (Copepoda, Monstrilloida) in estuaries of the southern Gulf of St. Lawrence, Canada. Crustaceana 75, 649–661.CrossRefGoogle Scholar
Davis, C.C. (1947) Two monstrilloids from Biscayne Bay, Florida. Transactions of the American Microscopical Society 66, 390–395.CrossRefGoogle Scholar
Davis, C.C. (1984) Planktonic Copepoda (including Monstrilloida). In Steidinger, K.A. and Walker, L.M. (eds) Marine plankton life cycle strategies. Boca Raton, Florida: CRC Press, pp. 67–91.Google Scholar
Grygier, M.J. (1994a) (dated 1993). Idenity of Thaumatoessa (=Thaumaleus) typica Krøyer, the first described monstrilloid copepod. Sarsia 78, 235–242.CrossRefGoogle Scholar
Grygier, M.J. (1994b) Nomenclature, redescription, and new record from Okinawa of Cymbasoma morii Sekiguchi, 1982 (Monstrilloida). Hydrobiologia 292/293, 23–29.CrossRefGoogle Scholar
Grygier, M.J. and Ohtsuka, S. (1995) SEM observation of the nauplius of Monstrilla hamatapex, new species, from Japan and an example of upgraded descriptive standards for monstrilloid copepods. Journal of Crustacean Biology 15, 703–719.CrossRefGoogle Scholar
Huys, R. and Boxshall, G.A. (1991) Copepod evolution. London: The Ray Society.Google Scholar
Huys, R., Llewellyn-Hughes, J., Conroy-Dalton, S., Olson, P.D., Spinks, J.N. and Johnston, D.A. (2007) Extraordinary host switching in siphonostomatoid copepods and the demise of the Monstrilloida: integrating molecular data, ontogeny and antennulary morphology. Molecular Phylogenetics and Evolution 43, 368–378.CrossRefGoogle ScholarPubMed
Isaac, M.J. (1975) Copepoda, Suborder: Monstrilloida. Fiches d'Identification du Zooplancton 144/145, 1–10.Google Scholar
Sars, G.O. (1921) An account of the Crustacea of Norway with short descriptions and figures of all the species. Vol. VIII. Copepoda, Monstrilloida and Notodelphyoida. Bergen: The Bergen Museum.Google Scholar
Scott, T. (1904) Notes on some rare and interesting marine Crustacea. Twenty-second Annual Report of the Fishery Board for Scotland, being for the year 1903, Part III, 242–260, pl. XIII–XV.Google Scholar
Sekiguchi, H. (1982) Monstrilloid copepods from Ago Bay, central Japan. Proceedings of the Japanese Society of Systematic Zoology 22, 24–34.Google Scholar
Suárez-Morales, E. (2000) Redescription of two species of Cymbasoma from southwest Britain and from Indonesia (Copepoda: Monstrilloida), with notes on taxonomy. Beaufortia 50, 139–149.Google Scholar
Suárez-Morales, E. (2001a) Redescription of two Cymbasoma (Copepoda: Monstrilloida) collected during the Siboga Expedition (1899–1900). Bulletin de l'Institut Royal des Sciences Naturelles de Belgique, Biologie 71, 53–64.Google Scholar
Suárez-Morales, E. (2001b) An aggregation of monstrilloid copepods in a western Caribbean reef area: ecological and conceptual implications. Crustaceana 74, 689–696.CrossRefGoogle Scholar
Suárez-Morales, E. (2006) Validation and redescription of Cymbasoma germanicum (Timm) (Crustacea: Copepoda: Monstrilloida) from Helgoland with comments on Cymbasoma rigidum Thompson. Helgoland Marine Research 60, 171–179.CrossRefGoogle Scholar
Suárez-Morales, E., Bello-Smith, A. and Palma, S. (2006) A revision of the genus Monstrillopsis Sars (Crustacea: Copepoda: Monstrilloida) with description of a new species from Chile. Zoologischer Anzeiger 245, 95–107.CrossRefGoogle Scholar
Suárez-Morales, E. and Escamilla, J.B. (1997) An undescribed monstrilloid copepod (Copepoda: Monstrilloida) from the northern Yucatán Peninsula, Mexico. Bulletin of Marine Science 61, 539–547.Google Scholar
Suárez-Morales, E. and Gasca, R. (2004) On the invalidity of Strilloma Isaac (Copepoda: Monstrilloida): observations from the type species. Zoological Studies 43, 293–299.Google Scholar
Suárez-Morales, E. and Ivanenko, V.N. (2004) Two new species of Monstrillopsis Sars (Crustacea: Copepoda: Monstrilloida) from the White Sea and Norway, with comments on M. dubia Scott. Arctic 57, 37–46.CrossRefGoogle Scholar
Suárez-Morales, E. and Palomares, R. (1999) Cymbasoma californiense, a new monstrilloid (Crustacea: Copepoda: Monstrilloida) from Baja California, Mexico. Proceedings of the Biological Society of Washington 112, 189–198.Google Scholar
Timm, R. (1896) IV. Copepoden und Cladoceren. Wissenschaftliche Meeresuntersuchungen. Neue Folge 1, 363–402, af. V–VI.Google Scholar
Thompson, I.C. (1888) Copepoda of Madeira and the Canary Islands, with descriptions of new genera and species. Journal of the Linnean Society, London (Zoology) 20, 145–156, pl. X–XIII.CrossRefGoogle Scholar
Wilson, C.B. (1932) The copepods of the Woods Hole region, Massachusetts. United States National Museum Bulletin 158, xix+1–635, pl. 1–41.Google Scholar