Genus Amphinomia Hooper, 1991

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Regional Maps

• Amphinomia Hooper, J.N.A. 1991. Revision of the family Raspailiidae (Porifera: Demospongiae), with descriptions of Australian species. Invertebrate Taxonomy 5(6): 1179-1418 [1321].

  Type species:

   Amphinomia sulphurea Hooper, 1991 by original designation.

Distribution

States

Northern Territory, Western Australia

IBRA and IMCRA regions

IMCRA

Timor Transition (1), Timor Province (2), Northern Shelf Province (25), Northwest Shelf Transition (26), Northwest Shelf Province (27), Northwest Transition (3), Northwest Province (4)

Diagnosis

Massive flabellate-lobate growth form. Surface fleshy, uneven and not hispid. Choanosomal skeletal architecture regularly renieroid-reticulate, without any axial compression or marked differentiation
between axial and extra-axial skeletal tracts. Spicules and fibres form ascending multispicular tracts, interconnected by uni- or paucispicular transverse tracts, and fibres are lightly echinated by acanthostyles. Extra-axial skeleton vestigial, with subectosomal styles scattered throughout the skeleton especially near the periphery. Ectosomal skeleton thickly membraneous, without specialised spiculation. Megascleres include smooth subectosomal styles, choanosomal styles with large spines on both basal and distal ends, and evenly spined echinating acanthostyles. Microscleres absent.

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. [508]

History of changes