Genus Sigmosceptrella Dendy, 1921
- Sigmosceptrella Dendy, A. 1921. The tetraxonid sponge spicule: a study in evolution. Acta Zoologica (Stockholm) 2: 95-152, 50 figs [122] [genus name first introduced in description of spicule in Dendy, A. 1921. The tetraxonid sponge spicule: a study in evolution. Acta Zool. 2: 95–152 50 figs; genus described in Dendy, A. 1922. Report on the Sigmatotetraxonida collected by H.M.S. Sealark in the Indian Ocean. In Report of the Percy Sladen Trust Expedition to the Indian Ocean in 1905. Vol. 7. Transactions of the Linnean Society of London. Zoology 18: 1–164 pls 1–18].
Type species:
Spirastrella fibrosa Dendy, 1897 by subsequent designation, see Dendy, A. 1922. Report on the Sigmatotetraxonida collected by H.M.S. Sealark in the Indian Ocean. In Report of the Percy Sladen Trust Expedition to the Indian Ocean in 1905. Vol. 7. Transactions of the Linnean Society of London 2nd Series Zoology 18: 1-164 pls 1-18 [138].
Distribution
States
Tasmania, Victoria, Western Australia
Extra Distribution Information
N Atlantic Ocean including North Sea, Indian Ocean and Indo-Malayan region.
IMCRA
Central Western Shelf Province (29), Southwest Shelf Transition (30), Southwest Shelf Province (31), Western Bass Strait Shelf Transition (34), Bass Strait Shelf Province (35), Tasmanian Shelf Province (36), Southeast Shelf Transition (37)
Distribution References
- Dendy, A. 1922. Report on the Sigmatotetraxonida collected by H.M.S. Sealark in the Indian Ocean. In Report of the Percy Sladen Trust Expedition to the Indian Ocean in 1905. Vol. 7. Transactions of the Linnean Society of London 2nd Series Zoology 18: 1-164 pls 1-18 [138]
- Thomas, P.A. 1973. Marine Demospongiae of Mahé Island in the Seychelles Bank (Indian Ocean). Annales du Musée Royal de l'Afrique Centrale Tervuren Belgique Zool. 203: 1-96 pls 1-8 [51, 53]
Diagnosis
Thickly encrusting, lobate, semi-digitate sponge with a smooth to faintly conulose surface. The choanosomal skeleton consists of large diverging dendritic or plumose tracts that are not joined by secondary fibres, diverging to form brushes in the ectosome. Megascleres are strongyloxeas. The ectosome is packed with abundant spinorhabds which are characteristically dumbbell shaped and often asymmetrical.
ID Keys
See Family Podospongiidae Diagnosis
Diagnosis References
Kelly, M. & Samaai, T. 2002. Family Podospongiidae de Laubenfels, 1936. pp. 694-702 in Hooper, J.N.A. & van Soest, R.W.M. (eds). Systema Porifera: A guide to the classification of sponges. New York : Kluwer Academic/Plenum Publishers Vol. 1. [701]
History of changes
| Published | As part of group | Action Date | Action Type | Compiler(s) |
|---|---|---|---|---|
| 29-Mar-2018 | 15-Dec-2011 | MOVED | ||
| 29-Mar-2018 | 13-Apr-2011 | MODIFIED | ||
| 12-Feb-2010 | (import) |