Published December 31, 2008 | Version v1
Taxonomic treatment Open

Acanthopolymastia Kelly-Borges & Bergquist 1997

Description

Genus Acanthopolymastia Kelly­Borges & Bergquist, 1997

Diagnosis (emended from Boury­Esnault 2002): Sponges are cushion­shaped or discoid, with a single low oscular papilla. The edge of the body is very hispid whereas the other part of the surface is only minutely hispid. The choanosomal skeleton is composed by tracts of tylostyles, subtylostyles or styles which project beyond the surface making up the hispidation. The cortical skeleton includes a palisade of small tylostyles. Acanthose microxeas are very abundant both in cortex and choanosome.

Emendations proposed: 1) Spicules of the choanosomal tracts may be styles. 2) In all known Acanthopolymastia spp. the surface is hispid to a greater or lesser degree (see Kelly­Borges & Bergquist 1997). This hispidation is constituted by the choanosomal tracts projecting beyond the whole surface but not exclusively at the edge as given in Systema Porifera (Boury­Esnault 2002). Moreover, the excess edge hispidation shared by A. acanthoxa (Koltun, 1964) and A. pisiformis (Lévi, 1993) is not found in A. bathamae Kelly­Borges & Bergquist, 1997.

Type species: Atergia acanthoxa Koltun, 1964 (by original designation).

Other

Published as part of Plotkin, Alexander S. & Janussen, Dorte, 2008, Polymastiidae and Suberitidae (Porifera: Demospongiae: Hadromerida) of the deep Weddell Sea, Antarctic *, pp. 95-135 in Zootaxa 1866 on page 98, DOI: 10.5281/zenodo.183878

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Linked records

Additional details

Biodiversity

References

  • Kelly-Borges, M. & Bergquist, P. R. (1997) Revision of Southwest Pacific Polymastiidae (Porifera: Demospongiae: Hadromerida) with descriptions of new species of Polymastia Bowerbank, Tylexocladus Topsent, and Acanthopolymastia gen. nov. from New Zealand and the Norfolk Ridge, New Caledonia. New Zealand Journal of Marine and Freshwater Research, 31 (3), 367 - 402.
  • Boury-Esnault, N. (2002) Family Polymastiidae Gray, 1867. In: Hooper, J. N. A. & van Soest, R. W. M. (Eds.), Systema Porifera. A Guide to the Classification of Sponges. Vol. 1. Kluwer Academic / Plenum Publishers, New York, pp. 201 - 219.
  • Koltun, V. M. (1964) Sponges of the Antarctic. Part 1. Tetraxonida and Cornacuspongida. In: Pavlovskii, E. P., Andriyashev, A. P. & Ushakov, P. V. (Eds.), Biological Reports of the Soviet Antarctic Expedition (1955 - 1958), Explorations of the fauna of the seas. Vol. 2 (10). Academy of Sciences of the USSR, Nauka, Moscow-Leningrad, 6 - 133, 443 - 448.
  • Levi, C. (1993) Porifera Demospongiae: Spongiaires bathyaux de Nouvelle-Caledonie, recoltes par le ' Jean Charcot'. Campagne BIOCAL, 1985. In: Crosnier, A. (Ed.), Resultats des campagnes MUSORSTOM, Vol. 11. Memoires du Museum national d'Histoire naturelle (A, Zoologie), 158, 9 - 87.