Skip to main content Skip to main navigation menu Skip to site footer
Responsive image
Issue: Vol. 1463 No. 1: 30 Apr. 2007
Type: Articles
Published: 2007-04-30
DOI: 10.11646/zootaxa.1463.1.6
Page range: 55–68
Abstract views: 39
PDF downloaded: 1

Revision of the subgenus Neopsacas (Hexactinellida, Rossellidae, Crateromorpha) with the description of new species and subspecies

Biophysical department, Physical Faculty, MSU-2, b.2 Moscow State University, Moscow, 119992, Russia
Institute of Oceanology Ac. of Sc. of Russia, Nahimovsky 36, Moscow, 117218, Russia
Forschungsinstitut und Naturmuseum Senckenberg, Senckenberganlage 25, D-60325 Frankfurt a M., Germany
Hexactinellida Porifera Rossellidae new species taxonomic revision deep-sea sponges

Abstract

Discovery of new specimens of Crateromorpha (Neopsacas), which are attributed to new species, from the Pacific, Antarctic and Indian Oceans and the description of new specimen also from the Atlantic Ocean allow us to review the skeletal characters regarding the dermal-hypodermal-atrial-hypoatrial spicule composition in various species of subgenus C. (Neopsacas). A new diagnosis of this taxon is proposed, and several new species and subspecies described: Crateromorpha (Neopsacas) krinovi krinovi sp. nov., ssp. nov., Crateromorpha (Neopsacas) krinovi discoli ssp. nov. and Crateromorpha (Neopsacas) obi sp. nov. The status of the subgenus Neopsacas within the Rossellidae and its close relation to Caulophacus are now well established according to morphological characters. The distribution of this subgenus is wide: Atlantic, Pacific, Indian and Antarctic Oceans. Possible phylogenetic affinities between the genera Crateromorpha and Caulophacus are discussed.

References

  1. Brückner, A. (2006) Taxonomy and paleoecology of lyssacinosan Hexactinellida from the Upper Cretaceous (Coniacian) of Bornholm, Denmark, in comparison with other Postpaleozoic representatives. Abhandlungen der Senckenbergischen Naturforschenden Gesellschaft, 564, 1–103.

    Carter, H.J. (1872) Descriptions of two new sponges from the Philippine Islands. Annales and Magazine of Natural History London, IV, 10, 110–113.

    Dohrmann,M., Janussen,D., Reitner,J. & Wörheide, G. (2006) Phylogeny of Hexactinellida. Abstract volume, 7th International Sponge Symposium, 7–13.05.2006 in Búzios, Rio de Janeiro, Brazil, p. 187.

    Hajdu, E., Lopes, D.A., Menshenina, L.L.& Tabachnick, K.R. (in press) Revision of Calycosoma and finding of Lophocalyx in the Atlantic Ocean (Porifera, Hexactinellida). Proceedings of the 7th International Sponge Symposium, 7–13.05.2006 in Búzios, Rio de Janeiro, Brazil.

    Janussen, D, TabachnickK. R. & TendalO. S 2004: Deep-sea Hexactinellida (Porifera) of the Weddell Sea. Deep-Sea Research, II, 51, pp. 1857–1882.

    Mehl, D. (1992) Die Entwicklung der Hexactinellida seit dem Mesozoikum. Paläobiologie, Phylogenie und Evolutionsökologie. Berliner geowissenschaftliche Abhandlungen, E, 2, 1–164.

    Schmidt, O. (1870) Grundzüge einer Spongien-Fauna des Atlantischen Gebietes. Wilhelm Engelmann Verlag, Leibzig, 88 pp.

    Schrammen, A. (1903) Zur Systematik der Kieselspongien. Mitteilungen aus dem Roemer-Museum, Hildesheim, 177–385.

    Schulze, F.E. (1885) The Hexactinellida. In: Tizard, H. T., Moseley, H. M., Buchanan, J. Y. & Murray, J. (Eds), Report on the Scientific Results of the Voyage of H. M. S. “Challenger”, 1873–1876, Narrative, 1(1), Her Majesty's Stationery Office Zoology, London, pp. 437–451.

    Tabachnick, K.R. (2002) Family Rossellidae Schulze, 1885. In: Hooper, J.N.A.& Soest, R.W.M. van (Eds.), Systema Porifera: A Guide to Classification of Sponges, Vol. 2, Kluver Academic/ Plenum Publishers, New York, pp.1441–1505.

    Tabachnick, K.R. & Lévi, C. (2004) Lyssacinosa du Pacifique sud-ouest (Porifera: Hexactinellida). Chapter in: Marshall, B. and Richer de Forges, B., editors. Tropical Deep-Sea Benthos, vol. 23. Mémoires du Muséum National d’Histoire Naturelle, 191, 11–71.