Skip to main content Skip to main navigation menu Skip to site footer
Responsive image
Issue: Vol. 1866 No. 1: 3 Sep. 2008
Type: Article
Published: 2008-09-03
DOI: 10.11646/zootaxa.1866.1.12
Page range: 263–276
Abstract views: 31
PDF downloaded: 1

A new species of Ischnomesidae (Crustacea: Isopoda) from the Southern Ocean,Stylomesus weddellensis sp. nov.

University of Hamburg, Biocentrum Grindel and Zoological Museum, Martin-Luther-King-Platz 3, 20146 Hamburg, Germany
German Centre for Marine Biodiversity Research (DZMB), Senckenberg Research Institute, Biocentrum Grindel, Martin-Luther-King-Platz 3, 20146 Hamburg, Germany
Crustacea Isopoda Asellota Ischnomesidae Stylomesus deep sea Antarctica Southern Ocean taxonomy new species

Abstract

Stylomesus weddellensis sp. nov. is described from the abyssal Weddell Sea, Southern Ocean. It can easily be distinguished from the other species of the genus by its typical spine pattern. Besides the long frontolaterally directed projections of pereonite 1, pereonites 1-3 bear two mediolateral to caudolateral blunt spines which are absent in all other Southern Ocean or South Atlantic species of Stylomesus Wolff, 1956. The pereopod 7 is present, and is not fused to pleotelson. A list of all currently known 17 species of Stylomesus is presented including data on depth and distribution.

References

  1. Birstein, J.A. (1960) The family Ischnomesidae (Crustacea, Isopoda, Asellota) in the north-western part of the Pacific and the problem of amphiboreal and bipolar distribution of the deep sea fauna. Zoologicheskii Zhurnal, Moscow 34(1), 3–28 [in Russian].

    Birstein, J.A. (1963) Deep-sea isopod crustaceans of the northwestern Pacific Ocean. Institute of Oceanology of the U.S.S.R., Akademii Nauk, Moscow [in Russian with English summary], 213 pp.

    Birstein, J.A. (1969) Crustacea Isopoda from the Romanche Trench. Byulleten Moskovskogo Obshchestra Ispytatelei Prirody 74(3), 50–59 [in Russian].

    Birstein, J.A. (1971) Fauna of the Kurile-Kamchatka Trench. Additions to the fauna of isopods (Crustacea, Isopoda) of the Kurile-Kamchatka Trench. Part II. Asellota 2. Trudy Instituta Okeaonogiya, Akademiya Nauk SSSR, Moscow 92, 162–238 [in Russian].

    Brandt, A. & Barthel, D. (1995) An improved supra- and epibenthic sledge for catching Peracarida (Crustacea, Malacostraca). Ophelia, 43, 15–23.

    Brenke, N. (2005) An epibenthic sledge for operations on marine soft bottom and bedrock. Marine Technology Society Journal, 39(2), 10–19.

    Brökeland, W. & Brandt, A. (2004) Two new species of Ischnomesidae (Crustacea: Isopda) from the Southern Ocean displaying neoteny. Deep-Sea Research II, 51, 1769–1787.

    Hansen, H.J. (1916) Crustacea Malacostraca III: V. The Order Isopoda. Danish Ingolf-Expedition, 3(5), 1–262.

    Kensley, B. (1984) The South African Museum's Meiring Naude Cruises. Part 15. Marine Isopoda of the 1977, 1978, 1979 Cruises. Annals of the South African Museum, 93(4), 213–301.

    Kussakin, O.G. (1988) Marine and brackish-water Crustacea (Isopoda) of cold and temperate waters of the Northern Hemisphere. 3. Suborder Asellota 1. Janiridae, Santiidae, Dendrotionidae, Munnidae, Haplomunnidae, Mesosignidae, Haploniscidae, Mictosomatidae, Ischnomesidae. Opredeliteli po Faune SSR, Akademiya Nauk, SSSR, 152, 1–501 [in Russian].

    Menzies, R.J. (1962) The isopods of abyssal depth in the Atlantic Ocean. In: Abyssal Crustacea, Vema Research Series, 1, 184–185.

    Merrin, K.L. & Poore G.C.B. (2003) Four new species of Ischnomesidae (Crustacea: Isopoda: Asellota) from off southeastern Australia. Memoirs of Museum Victoria, 60(2), 285–307.

    Vanhöffen, E. (1914) Die Isopoden der Deutschen Südpolarexpedition 1901-1903. Deutsche Südpolarexpedition 1901-03, 25(7), 447–598.

    Wolff, T. (1956) Isopoda from depths exceeding 6000 m. Galathea Report, 2, 85–157.

    Wolff, T. (1962) The systematics and biology of bathyal and abyssal isopod Asellota. Galathea Report, 6, 59–64.