Abstract
The only two specimens of Leptychaster spp. reported from Southwest Atlantic, were determined as L. kerguelenensis mendosus by Fisher (1940). Twelve specimens of Leptychaster kerguelenensis from Argentine continental shelf collected by the R/V Shinkai Maru, and two specimens from Kerguelen Islands collected by B.A.N.Z.A.R.E., were used to redescribe the species. All the material is deposited at the Museo Argentino de Ciencias Naturales "Bernardino Rivadavia". All Atlantic specimens agree with the description of Leptychaster kerguelenensis and no morphological differences were found with specimens from Kerguelen Islands. From the present study, no subspecies are recognized within L. kerguelenensis and L. mendosus is a junior synonym of the former.References
Bastida, R. & Urien C.M. (1981) Investigaciones sobre comunidades bentónicas. Características generales del sustrato (campañas IV, V, X y XI del B/I “Shinkai Maru”). Campañas de investigación pesquera realizadas en el Mar Argentino por los B/I “Shinkai Maru” y “Walther Herwig” y el B/P “Marburg”, años 1978 y 1979. Resultados de la parte argentina. INIDEP, Mar del Plata, Serie Contribuciones, 383, 339 pp.
Bastida, R., Roux, A. & Martínez, D.E. (1992) Benthic communities of the Argentine continental shelf. Oceanologica Acta, 15 (6), 687–698.
Bell, F.J. (1908) Echinoderma. National Antarctic Expedition. Natural History, 4 Zoology, 1–16, 5 pls.
Bernasconi, I. (1969) Una nueva especie de asteroideo antártico Leptychaster melchiorensis sp. nov. (Asteroidea, Astropectinidae). Neotrópica, 15 (47), 95–97.
Bernasconi, I. (1971) Echinodermata: Asteroidea and Ophiuroidea. In: Marion and Prince Edward Islands. Report on the South African Biological and Geological Expedition, 1965–1966. E.R. van Zinderen Bakker, J.R. Winterbottom and R.A. Dyers Eds. Cape Town: A.A. Balkema, pp. 284–287, 2 pls.
Clark, A.M. & Downey, M.E. (1992) Starfish of the Atlantic. Chapman & Hall, London, 793 pp.
Fisher, W.K. (1911) Asteroidea of the North Pacific and adjacent waters. 1. Phanerozonia and Spinulosa. Bulletin of the United States National Museum, 76, 420 pp.
Fisher, W.K. (1940) Asteroidea. Discovery Reports, 20, 69–306.
Koehler, R. (1917) Echinodermes (Astéries, Ophiures et Echinides) recueillis par M. Rallier de Baty, aux de Kerguelen, en 1913–14. Annals de l´Institut Océanographique, Monaco, 7 (8), 1–82.
Koheler, R. (1920) Echinodermata: Asteroidea. Scientific Reports of Australasian Antarctic Expedition 1911–1914, Series C Zoology and Botany, 8 (1), 1–308.
Koehler, R. (1923) Astéries et Ophiures recueillis par l’expedition antarctique suèdoise, 1901–03. Further Zoological Results of the Swedish Antarctic Expedition, 1 (1), 1–145.
Mah, C. & Danis, B. (2011) World Register of Marine Species. Leptychaster kerguelenensis E.A. Smith, 1876. Available from http://www.marinespecies.org/aphia.php?p=taxdetails&id=152501 (2011–03–31).
Sladen, W.P. (1889) The Asteroidea. Report of Scientific Results of the Exploring Voyage of H.M.S. Challenger, Zoology, 30, 1–935.
Smith, E.A. (1876) Descriptions of species of Asteriidae and Ophiuridae from Kerguelen Island. Annals and Magazine of Natural History, 17 (4), 105–113.
Smith, E.A. (1879) Echinodermata of Kerguelen Island. Philosophical Transactions of the Royal Society, 168, 270–281.