Australian Biological Resources Study

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Genus Hymeniacidon Bowerbank, 1859

 

Distribution

States

New South Wales, Northern Territory, Queensland, Tasmania, Victoria, Western Australia


Extra Distribution Information

Cosmopolitan.


IBRA and IMCRA regions (map not available)

IMCRA

Timor Transition (1), Northern Shelf Province (25), Northwest Shelf Transition (26), Northwest Shelf Province (27), Western Bass Strait Shelf Transition (34), Bass Strait Shelf Province (35), Tasmanian Shelf Province (36), Southeast Shelf Transition (37), Central Eastern Shelf Province (38)

Other Regions

Australian Antarctic Territory, Heard & McDonald Islands (Aust. Terr.)

Distribution References

Diagnosis

Encrusting to massive, lobate or occasionally irregularly branching growth forms. Surface irregularly papillate, grooved, corrugated or smooth. Ectosomal skeleton is a thin tangential or paratangential crust, often incomplete, membranous, detachable or coming off in flakes, containing styles or stylotes. Choanosomal skeleton varies from truly confused to disorganised with wispy, slightly plumose ascending spicule tracts of styles or stylotes. Most species have a characteristic fleshy consistency; oxeas have been lost completely and megascleres consist only of styles or stylotes. Several dozens of species, predominantly from temperate and colder waters, but several tropical species have been reliably reported.

 

ID Keys

See Family Halichondriidae 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)