Three new species of the genus <em>Lepechinella</em> (Amphipoda: Gammaridea: Lepechinellidae) collected from Campos Basin slope, RJ, Brazil

Daniela J.P. Sittrop; Cristiana S. Serejo

doi:10.3989/scimar.2009.73n3473

Authors

Daniela J.P. Sittrop Universidade Federal do Rio de Janeiro/Museu Nacional
Cristiana S. Serejo Universidade Federal do Rio de Janeiro/Museu Nacional

DOI:

https://doi.org/10.3989/scimar.2009.73n3473

Keywords:

deep sea, Lepechinella, new species, South Atlantic, Campos Basin, Rio de Janeiro, taxonomy

Abstract

The genus Lepechinella Stebbing, 1908 has a cosmopolitan distribution and includes 28 species. The three new species of the genus described herein were provided from samples collected from the slope of Campos Basin, as part of the Campos Basin deep-sea environmental project. Samples were taken using a box corer between the depths of 700 and 2000 m. Lepechinella hirsuta n. sp. is characterised by the presence of simple setae on the dorsal midline of the body, an anterior tooth and an anterolateral projection on peraeonite 1; Lepechinella campensis n. sp. has peraeonite 1 dorsally sinuous and a posterior upright tooth on peraeonites 2 to 7; and Lepechinella laurensi n. sp. has peraeonites 1 to 4 dorsally sinuous and a posterior inclined tooth on peraeonites 5 to 7. This study provides full descriptions of these three new species and an identification key for South Atlantic species of the genus Lepechinella.

Downloads

Download data is not yet available.

References

Andres, H.G. and A. Brandt. – 2001. Lepechinellid genera Paralepechinella Pirlot, 1933 and Lepechinelloides Thurston, 1980: first records from Antarctica (Crustacea: Amphipoda. Mitt. Zool. Mus. Inst., 98: 77-97.

Barnard, J.L. – 1962. South Atlantic abyssal Amphipods collected by R. V. Vema. Abyssal Crustacea, Vema Research Series, 1: 1-78.

Barnard, J.L. – 1970. The identity of Dexamonica and Prinassus with a revision of Dexaminidae (Amphipoda). Crustac. Int. J. Crustac. Res., 19(2): 162-180.

Barnard, J.L. – 1973. Deep-sea Amphipoda of the genus Lepechinella (Crustacea). Smithson. Contrib. Zool., 133: 1-31.

Barnard, J.L. and G.S. Karaman. – 1991. The families and genera of marine gammaridean Amphipoda (except marine gammaroids). Part 1. Rec. Aust. Mus., 13 (Suppl.): 1-417.

Barnard, K.H. – 1925. Contributions to the crustacean fauna of South Africa, No. 8. Further additions to the list of Amphipoda. Ann. S. Afr. Mus., 20 (5): 319-380.

Barnard, K.H. – 1932. Amphipoda. Discovery Rep., 5: 1-326.

Bousfield, E.L. and A. Kendall. – 1994. The Amphipoda superfamily Dexaminoidea on the North American Pacific coast, families Atylidae and Dexaminidae: systematics and distributional ecology. Amphipacifica, 1(3): 3-66.

Chevreux, E. – 1914. Diagnoses d’Amphipodes nouveux provenant des campagnes de la Princesse-Alice dans l’Atlantique nord. Bull. Inst. Oceanogr., 296: 1-4.

Dahl, E. – 1959. Amphipoda from depths exceeding 6000 meters. Galathea Rep., 1: 211-241.

Gamô, S. – 1981. A new deep-sea Amphipoda, Lepechinella sagamiensis sp. nov. from Sagami Bay. Proc. Jap. Syst. Zool., 20: 16-20.

Garm, A. – 2004. Revising the definition of the crustacean seta and setal classification systems based on examinations of the mouthparts setae of seven species of decapods. Zool. J. Linn. Soc., 142: 233-252. doi:10.1111/j.1096-3642.2004.00132.x

Griffiths, C.L. – 1977. Deep-sea amphipods from west of cape point, South Africa. Ann. S. Afr. Mus., 73(4): 93-104.

International Commission of Zoological Nomenclature. – 1999. Interntional Code of Zoological Nomenclature. London.

Ledoyer, M. – 1982. Crustacés amphipodes gammariens famillas des Acanthonotozomatidae à Gammaridae. Faune Madag., 59(1): 1-598.

Pirlot, J.M. – 1933. Les Amphipodes de léxpedition du Siboga. Deuxième partie. Les amphipodes gammarides II : Les amphipode de la mer profonde. 1 (Lysianassidae, Stegocephalidae, Stenothoide, Pleustidae, Lepechinellidae). Siboga Exped. Mon., 33c: 115-167.

Schellenberg, A. – 1925. Die Gammariden Spitzbergens nebst einer Übersicht der von Römer and Schaudinn 1898 im nördlichen Eismeer gesammelten Arten. Mitt. Zool. Mus. Berlin, 11 (2): 195-231.

Schellenberg, A. – 1926. Die gammariden der deutschen Südpolar- Expedition 1901-1903. Deutsch Südpolar-Exped., 18: 235-414.

Stebbing, M.A. – 1908. On two new species of Northern Amphipoda. Zool. J. Linn. Soc., 30: 191-197. doi:10.1111/j.1096-3642.1908.tb02133.x

Thurston, M.H. – 1980. Abyssal benthic Amphipoda (Crustacea) from the East Iceland Basin. Bull. Br. Mus. Nat. Hist. (Zool.), 38(1): 69-87.