Genus Sigmaxinella Dendy, 1897
- Sigmaxinella Dendy, A. 1897. Catalogue of non-calcareous sponges collected by J. Bracebridge Wilson, Esq., M.A., in the neighbourhood of Port Phillip Heads. Part 3. Proceedings of the Royal Society of Victoria ns 9: 230-259 [240].
Type species:
Sigmaxinella australiana Dendy, 1897 by subsequent designation, see Hallmann, E.F. 1916. A revision of the genera with microscleres included, or provisionally included, in the family Axinellidae, with descriptions of some Australian species. Part 2. Proceedings of the Linnean Society of New South Wales 41: 495-552 6 figs pls 29/4, 30-32, 33/1-5, [520]. - Sigmaxia Hallmann, E.F. 1916. A revision of the genera with microscleres included, or provisionally included, in the family Axinellidae, with descriptions of some Australian species. Part 2. Proceedings of the Linnean Society of New South Wales 41: 495-552 6 figs pls 29/4, 30-32, 33/1-5, [535].
Type species:
Axinella flabellata Carter, 1885 by monotypy.
Distribution
States
New South Wales, South Australia, Victoria, Western Australia
Extra Distribution Information
Indian Ocean and S Africa.
IMCRA
Northwest Shelf Province (27), Great Australian Bight Shelf Transition (32), Spencer Gulf Shelf Province (33), Western Bass Strait Shelf Transition (34), Bass Strait Shelf Province (35), Southeast Shelf Transition (37), Central Eastern Shelf Province (38)
Distribution References
Diagnosis
Arborescent or stipitate growth form. Cylindrical branches, rarely fused to form a flabellate sponge, with optically smooth surface. Condensed axial skeleton, plumose or plumo-reticulate to plumose extra-axial skeleton, well-developed spongin fibres; plumose, erect ectosomal skeleton; megascleres coring styles or anisostyles of a single size; microscleres are sigmas and microxeas. About a dozen species have been described from South Australia, S New Zealand and a few Indian Ocean locations.
ID Keys
See Family Desmacellidae Diagnosis.
Diagnosis References
Hajdu, E. & van Soest, R.W.M. 2002. Family Desmacellidae Ridley & Dendy, 1886. pp. 642-650 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. [649]
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) |