Abstract
New Hexactinellida from the deep Weddell Sea collected in 2005 during the ANT XXII/3 expedition (ANDEEP III ) are described. This hexactinellid fauna includes 12 species from 8 genera, 2 of which are new to science: Lophocalyx profundum n. sp. and L. topsenti n. sp. It further contains the first record of Caulophacus (Caulodiscus) valdiviae in the Weddell Sea, and the second findings of the species Acoelocalyx brucei and Caulophacus (Oxydiscus) weddelli since their original descriptions. The Southern Ocean deep-sea, including the deep Weddell Sea, still offers a challenging potential for the discovery of new taxa.
References
Barthel, D., Tendal, O.S., 1994. Antarctic Hexactinellida. Theses Zoologicae vol. 23, Ed., R. Fricke; Synopses of the Antarctic Benthos vol. 6. Eds., J.W. Wagele & J. Sieg, Koeltx Scientific Books, Champaign, Ill., 154 p.
Boury-Esnault, N. & Rützler, K. (1997) Thesaurus of sponge morphology, Smithsonian Contributions to Zoology, 596, 1–55.
Burton, M., 1929. Porifera, Part II. Antarctic Sponges. British Antarctic (Terra Nova) Exped. 1910. Natural History Reports, Zool. 6(4), 393–459 + 5 plates.
Burton, B., 1932. Sponges. Discovery Reports 6, 237–392.
Hentschel, E., 1914. Monaxone Kieselschwämme und Hornschwämme. Deutsche Südpolar-Expedition 15. Zoologie 7, 35–142.
Janussen, D., 2003. First report on the deep sea Porifera from the Northern Weddell Sea and the slope of South Sandwich Trench. Berichte zur Polar-und Meeresforschung 104–108, 470.
Janussen, D., 2006. Collection of Porifera (sponges) during ANDEEP III. Berichte zur Polar-und Meeresforschung 533, 174–178.
Janussen, D. & Tendal, O. S. (2007) Diversity and distribution of Porifera in the bathyal and abyssal Weddell Sea and adjacent areas.- Deep-Sea Research, II, 54 (16/17), 1864–1875.
Janussen, D., Tabachnick, K.R., Tendal, O.S., 2004. Deep-sea Hexactinellida (Porifera) of the Weddell Sea. Deep-Sea Research II 51, 1857–1882.
Koltun, V.M., 1976. Porifera - Part 1. Antarctic Sponge Report. B.A.N.Z. Antarctic Res. Exped. (B) 5(4), 153–198.
Menshenina, L.L., Tabachnick, K.R., Lopes, D.A., Hajdu, E., 2007. Revision of Calycosoma Schulze, 1899 and finding of Lophocalyx Schulze, 1887 (six new species) in the Atlantic Ocean (Hexactinellida, Rossellidae). pp. 449–465 in: Custódio, M.R., Lôbo-Hajdu, G., Hajdu, E., Muricy, G. (eds). 2007. Porifera research: biodiversity, innovation and sustainability. Série Livros 28, Museu Nacional, Rio de Janeiro.
Reiswig, H.M., Mehl, D., 1994. Reevaluation of Chonelasma (Euretidae) and Leptophragmella (Craticulariidae) (Hexactinellida). pp. 151–165 in: R.W.M. van Soest, T.M.G. van Kempen & J.C. Braekman (Eds.), SPONGES IN TIME AND SPACE, Proceedings of the 4th International Porifera Congress, Amsterdam, April, 1993. Balkema, Rotterdam.
Schulze, F.E., 1904. Hexactinellida. Wissenschafliche Ergebnisse der deutschen Tiefsee Expedition auf dem Dampfer "Valdivia" 1898–1899. Vol. 4. Fisher, Jena, 266 pp., 52 pls.
Schulze, F.E. & Kirkpatrick, R. (1910) Die Hexactinelliden der deutschen Südpolar-Expedition 1901–1903. In: Drygalski, E. von (ed.), Deutsche Südpolar-Expedition 1901–1903, 12 (Zool. 4. Bd. H. 1), 1–62, Berlin (Georg Reimer).
Tabachnick, K.R., 2002a. Family Euplectellidae Gray, 1867. in J.N.A. Hooper and R.W.M. Van Soest (eds.), Systema Porifera: A Guide to the Classification of Sponges., Klewer Academic/Plenum Publishers, New York, pp. 1388–1434.
Tabachnick, K.R., 2002b. Family Rossellidae Schulze, 1885. in J.N.A. Hooper and R.W.M. Van Soest (eds.), Systema Porifera: A Guide to the Classification of Sponges., Klewer Academic/Plenum Publishers, New York, pp. 1441–1505.
Topsent, E., 1901. Spongiaires. Resultats du Voyage du S.Y. Belgica en 1897–1899 (Expedition Antarctic Belge). Zoology, 7(1), 1–54, pls I–VI.
Topsent, E. 1910., Les Hexasterophora recueillies par la "Scotia" dans l'Antarctique. Bull. Inst. Oceanogr. Monaco (166), 1–18.
Topsent, E., 1913. Spongiaires de l'expedition Antarctique nationale Ecossaise. Trans. Roy. Soc. Edinburgh 49(pt 3) (No. 9), 579–643 + 6 plates.