Genus Trikentrion Ehlers, 1870
- Trikentrion Ehlers, E. 1870. Die Esper'schen Spongien in der zoologischen Sammlung der K. Universität Erlangen. Erlangen : E.T. Jacob 36 pp. [6].
Type species:
Spongia muricata Esper, 1793 by monotypy. - Plectronella Sollas, W.J. 1879. On Plectronella papillosa, a new genus and species of echinonematous sponge. Annals and Magazine of Natural History 5 3: 17-27 pls 4-7 [17].
Type species:
Plectronella papillosa Sollas, 1879 by monotypy.
Taxonomic Decision for Synonymy
- Hentschel, E. 1912. Kiesel- und Hornschwämme der Aru- und Kai Inseln. Abhandlungen der Senckenbergischen Naturforschenden Gesellschaft 34: 294-448 pls 13-21 [374]
- Hooper, J.N.A. 1991. Revision of the family Raspailiidae (Porifera: Demospongiae), with descriptions of Australian species. Invertebrate Taxonomy 5(6): 1179-1418 [1298]
Distribution
States
Northern Territory, Western Australia
Extra Distribution Information
E Atlantic Ocean, Indo-Malayan region and E Pacific Ocean (California).
IMCRA
Timor Transition (1), Northern Shelf Province (25), Northwest Shelf Transition (26), Northwest Shelf Province (27)
Distribution References
- Carter, H.J. 1879. Contributions to our knowledge of the Spongida. Annals and Magazine of Natural History 5 3: 284-304, 343-360 pls 25-29
- Dickinson, M.G. 1945. Sponges of the Gulf of California. Allan Hancock Pacific Expeditions 11(1): 1-55 pls 1-97
Diagnosis
Arborescent, digitate and flabellate growth forms. Surface usually hispid, and even or rough and microconulose. Choanosomal skeleton with poorly developed wide meshed reticulation, with only slightly compressed axial fibres running longitudinally through axial core. Fibres cored by pauci- or multispicular tracts of oxeas. Axial and extra-axial skeletons not markedly differentiated; extra-axial skeleton consists of ascending multi- or paucispicular primary fibres cored by choanosomal oxeas, interconnected by uni- or paucispicular secondary fibres, together producing a more-or-less regular reticulation. Single or brushes of subectosomal styles embedded at ends of ascending primary fibres, poking through peripheral skeleton. Peripheral fibres moderately heavily echinated by sagittal triacts. Ectosome with specialised skeleton of ectosomal styles in brushes surrounding bases of extra-axial styles.
ID Keys
See Family Raspailiidae Diagnosis.
Diagnosis References
Hooper, J.N.A. 2002. Family Raspailiidae Hentschel, 1923. pp. 469-510 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. [499]
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) |