Published December 31, 2009 | Version v1
Taxonomic treatment Open

Acoelocalyx brucei Topsent 1910

Description

Acoelocalyx brucei Topsent, 1910

(Fig. 1A)

Material examined: SMF 10530, ANDEEP III, R.V. 'Polarstern', stn PS67/102-11, Weddell Sea, Antarctica, 0 6 Mar. 2005, 65°35.40'–35.51'S, 36°29.00'–28.83'W, 4794–4797 m, ethanol.

Description and remarks. The single small specimen obtained by trawl was intact and in very good shape when retrieved; overall length 7.5 cm, body 1 cm long, stalk 4.5 cm long, and root ball 1.5 cm long (Fig. 1A). Spiculation is generally consistent with descriptions of Topsent (1910, 1913), and Tabachnick (2002a); microscleres are much smaller than Topsent originally indicated, but agree with measurements more recently given by Tabachnick (2002a) for the holotype. The ANDEEP III specimen is very important, being only the second known sample of this species. It has not been reported since its original description by Topsent (1910, 1913) from the 1903 'Scotia' collection, very close to the new site and from a similar depth.

Notes

Published as part of Janussen, Dorte & Reiswig, Henry M., 2009, Hexactinellida (Porifera) from the ANDEEP III Expedition to the Weddell Sea, Antarctica, pp. 1-20 in Zootaxa 2136 on page 3, DOI: 10.5281/zenodo.188483

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Linked records

Additional details

Biodiversity

Family
Euplectellidae
Genus
Acoelocalyx
Kingdom
Animalia
Order
Lyssacinosida
Phylum
Porifera
Scientific name authorship
Topsent
Species
brucei
Taxon rank
species
Taxonomic concept label
Acoelocalyx brucei Topsent, 1910 sec. Janussen & Reiswig, 2009

References

  • 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.
  • Tabachnick, K. R., 2002 a. 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.