Australian Biological Resources Study

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Genus Diacarnus Burton, 1934

 

Distribution

States

New South Wales, Queensland, Victoria


Extra Distribution Information

Indo-west Pacific: eastern coast of Australia and Coral Sea, Papua New Guinea, Bismarck Sea, New Caledonia, Fiji, Vanuatu, Philippines, Micronesia (Chuuk, Fayu, Pohnpei), Red Sea, Gulf of Aden.


IBRA and IMCRA regions (map not available)

IMCRA

Central Eastern Transition (15), Kenn Transition (16), Kenn Province (17), Northeast Province (18), Northeast Transition (19), Cape Province (20), Western Bass Strait Shelf Transition (34), Bass Strait Shelf Province (35), Southeast Shelf Transition (37), Central Eastern Shelf Province (38), Central Eastern Shelf Transition (39), Northeast Shelf Province (40), Northeast Shelf Transition (41)

Distribution References

Diagnosis

Massive, barrel-shaped, tubular or lobate-digitate sponges. Surface with single or multiple conules or blunt broad tubercles or mounds, microscopically smooth, slippery and rubbery. Ostia radiate in stellate formation in shallow rounded depressions, oscules apical with low fleshy raised collars. Texture extremely tough, almost cartilaginous, fleshy, elastic. Colour in life cream base with pale purple-pink, and mottled with deep reddish brown and yellow brown. Skeletal arrangement plumoreticulate with huge thick hollow fibres optically visible, connected sparsely by thin secondary fibres. Ectosome dense, highly collagenous, distinct from the underlying choanosome, with layers of collencytes and collagen fibrils parallel to the surface. Megascleres are strongyloxeas, with a faint subterminal swelling at the proximal end, with the distal end oxeote or more typically strongylote. Microscleres are two size categories of spinorhabds. Sponges incubate huge bright orangeyellow larvae. (Modified from Kelly-Borges & Vacelet 1995).

 

ID Keys

See Family Podospongiidae Diagnosis.

 

History of changes

Note that this list may be incomplete for dates prior to September 2013.
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)