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Five new species of Oncholaimellus (Oncholaimidae: Nematoda) from north-east Brazil, with an emended diagnosis and an updated key to the genus

Published online by Cambridge University Press:  11 March 2014

Patrícia Fernandes Neres ,
Maria Cristina da Silva ,
Geruso Vieira de Miranda-Júnior ,
Verônica Fonsêca-Genevois  and
André Morgado Esteves
Patrícia Fernandes Neres
Affiliation:
Universidade Federal de Pernambuco, Avenida Professor Moraes Rego, s/n, Departamento Zoologia, Cidade Universitária, Recife, Pernambuco 50670-901. Brazil
Maria Cristina da Silva
Affiliation:
Universidade Federal de Pernambuco, Avenida Professor Moraes Rego, s/n, Departamento Zoologia, Cidade Universitária, Recife, Pernambuco 50670-901. Brazil
Geruso Vieira de Miranda-Júnior
Affiliation:
Universidade Federal de Pernambuco, Avenida Professor Moraes Rego, s/n, Departamento Zoologia, Cidade Universitária, Recife, Pernambuco 50670-901. Brazil
Verônica Fonsêca-Genevois
Affiliation:
Universidade Federal de Pernambuco, Avenida Professor Moraes Rego, s/n, Departamento Zoologia, Cidade Universitária, Recife, Pernambuco 50670-901. Brazil
André Morgado Esteves*
Affiliation:
Universidade Federal de Pernambuco, Avenida Professor Moraes Rego, s/n, Departamento Zoologia, Cidade Universitária, Recife, Pernambuco 50670-901. Brazil
*
Correspondence should be addressed to: A.M. Esteves, Universidade Federal de Pernambuco, Avenida Professor Moraes Rego, s/n, Departamento Zoologia, Cidade Universitária, Recife, Pernambuco 50670-901. Brazil email: andresteves.ufpe@gmail.com
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Abstract

Five new species of Oncholaimellus are described. They were found in macrofauna samples from the continental shelf in the Potiguar Basin, north-east Brazil. Cuticular pores with a sclerotized outline associated with a gland were observed in some species. Oncholaimellus multiporus sp. nov. is differentiated from other species by the presence of cuticular pores of different sizes; the smaller pores are abundant and give an appearance of ornamentation. Oncholaimellus intersexus sp. nov. and O. distortus sp. nov. are similar, but differ in the size of the external labial and cephalic setae compared to the corresponding diameter, the presence of the cuticular pores and the tail shape. Oncholaimellus paulus sp. nov. and O. sineporus sp. nov. are similar, although features such as the external labial and cephalic setae size compared to the corresponding diameter and the cuticular pores differentiate between them.

Keywords

marine nematodestaxonomyspecies descriptionBacia Potiguarsouth-west Atlanticcontinental shelf
Type
Research Article
Information
Journal of the Marine Biological Association of the United Kingdom , Volume 94 , Issue 4 , June 2014 , pp. 703 - 727
Copyright
Copyright © Marine Biological Association of the United Kingdom 2014 

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References

REFERENCES

Belogurov, O.I. and Belogurova, L.S. (1989) Morphology and systematics of free-living Oncholaimidae (Nematoda: Enoplida: Oncholaimina). Asian Marine Biology 6, 31–58.Google Scholar
Bovée, P. (1975) Dorylaimopsis mediterranea Grimaldi De Zio (Nematoda, Comesomatidae). Description d'une forme intersexuée. Vie et Milieu 25, 227–233.Google Scholar
Chitwood, B.G. and Chitwood, M.B. (1950) An introduction to nematology. 2. Baltimore: Monumental Printing, 334 pp.Google Scholar
Coomans, A. (1979) A proposal for a more precise terminology of the body regions of a nematode. Annales de la Société Royale Zoologique de Belgique 108, 115–117.Google Scholar
De Grisse, A.T. (1969) Redescription ou modification de quelques techniques utilisées dans l'étude des nématodes phytoparasitaires. Mededelingen Rijksfaculteit Landbouwwetenschappen Gent 34, 351–369.Google Scholar
De Ley, P., Decraemer, W. and Eyualem-Abebe (2006) Introduction: summary of present knowledge and research addressing the ecology and taxonomy of freshwater nematodes. In Eyualem-Abebe, Traunspurger W. and Andrássy, I. (eds) Freshwater nematodes: ecology and taxonomy. Wallingford, UK: CABI Publishing, pp. 3–30.CrossRefGoogle Scholar
De Man, J.G. (1904) Nèmatodes libres (Expédit. Antarctique Belge). Résultats du Voyage S. Y. Belgica 1–51.Google Scholar
Fonsêca-Genevois, V., Smol, N., Decraemer, W. and Venekey, V. (2009) Bernardius lineatus gen. n., sp. n. (Enoplida: Enchelidiidae), a remarkable nematode with ornamented cuticle from a Brazilian tropical sandy beach. Nematology 11, 275–287.CrossRefGoogle Scholar
Gerlach, S.A. and Riemann, F. (1974) The Bremerhaven checklist of aquatic nematodes. A catalogue of Nematoda Adenophorea excluding the Dorylaimida. Part 2. Veröffentlichungen des Instituts für Meeresforschung in Bremerhaven Supplement 4, 405–734.Google Scholar
Giere, O. (2009) Meiobenthology: the microscopic motile fauna in aquatic sediments. 2nd edition.Berlin: Springer-Verlag, 527 pp.Google Scholar
Gourbault, N. and Vincx, M. (1990) Chromadorida (Nematoda) from Guadeloupe and Polynesia with evidence of intersexuality. Zoologica Scripta 19, 31–37.CrossRefGoogle Scholar
Hopper, B.E. (1970) Free-living marine nematodes from Biscayne Bay, Florida, III. Eurystominidae: Pareurystomina bissonetei sp. nov. from Biscayne Bay and other locations. Proceedings of the Helminthological Society of Washington 37, 175–178.Google Scholar
Jensen, P. (1987) Feeding ecology of free-living aquatic nematodes. Marine Ecology Progress Series 35, 187–196.CrossRefGoogle Scholar
Keppner, E.J. (1987) Five new and one known species of free-living marine nematodes of the family Oncholaimidae (Nematoda: Enoplida) from northwest Florida, USA. Transactions of the American Microscopical Society 106, 214–231.CrossRefGoogle Scholar
Miljutina, M.A. and Miljutin, D.M. (2012) Seven new and four known species of the genus Acantholaimus (Nematoda: Chromadoridae) from the abyssal manganese nodule field (Clarion-Clipperton Fracture Zone, North-Eastern Tropical Pacific). Helgoland Marine Research 66, 413–462.CrossRefGoogle Scholar
Nehring, S. (1993) Tube-dwelling meiofauna in marine sediments. Internationale Revue der gesamten Hydrobiologie 78, 521–534.CrossRefGoogle Scholar
Sharma, B.E., Hopper, B.E. and Webster, J.M. (1979) Benthic nematodes from the Pacific coast with special reference to the cyatholaimids. Annales de la Société Royale Zoologique de Belgique, 108, 47–56.Google Scholar
Smol, N. and Coomans, A. (2006) Order Enoplida. In Eyualem-Abebe, Traunspurger W. and Andrássy, I. (eds) Freshwater nematodes: ecology and taxonomy. Wallingford, UK: CABI Publishing, pp. 225–292.CrossRefGoogle Scholar
Turpeenniemi, T.A. (1997) Descriptions of Eumonhystera borealis n. sp. and Sphaerolaimus occidentalis n. sp., and a redescription of S. gracilis de Man 1876 (Nemata) from Bothnian Bay, Baltic Sea. Journal of Nematology 29, 65–81.Google Scholar
Warwick, R.M., Platt, H.M. and Somerfield, P.J. (1998) Free-living marine nematodes. Part III Monhysterids. (Synopses of the British Fauna Series, No. 53. 296 pp.). Shrewsbury, UK: Field Studies Council, published for the Linnean Society of London and The Estuarine and Coastal Sciences Association.Google Scholar