Australian Biological Resources Study

Australian Faunal Directory

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Genus Calliactis Verrill, 1869

 

Distribution

States

New South Wales, Queensland, Western Australia


IBRA and IMCRA regions (map not available)

IMCRA

Central Eastern Province (12), Tasman Basin Province (13), Lord Howe Province (14), Central Eastern Transition (15), Kenn Transition (16), Kenn Province (17), Northeast Province (18), Northeast Transition (19), Cape Province (20), Northwest Shelf Province (27), Central Eastern Shelf Province (38), Central Eastern Shelf Transition (39), Northeast Shelf Province (40), Northeast Shelf Transition (41)

Diagnosis

Hormathiidae with well developed base. Column smooth, not differentiated or only slightly differentiated into scapus (often with a weak cuticle) and scapulus, often thick, sometimes with numerous ectodermal invaginations, which do not pierce the wall. Cinclides present in the proximal part of the column. Tentacles rather short, conical, more numerous than the mesenteries at the base, their longitudinal muscles ectodermal. Radial muscles of oral disc more or less embedded in the mesogloea. Two broad siphonoglyphs. Perfect mesenteries all sterile; two pairs of directives. Retractors of mesenteries fairly weak, diffuse. Parietobasilar and basilar muscles weak or rather well developed. Marginal sphincter muscle strong. Six pairs of complete and sterile mesenteries. Often commensal with hermit crabs. Cnidom: spirocysts, basitrichs, microbasic p-mastigophores.

 

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)
05-Aug-2022 ANTHOZOA 02-Aug-2021 MODIFIED
05-Aug-2022 NYNANTHEAE Carlgren, 1899 13-Aug-2013 MOVED Dr Bronwen Scott
05-Aug-2022 28-Feb-2011 MODIFIED
05-Aug-2022 09-Nov-2010 MOVED
05-Aug-2022 09-Nov-2010 MOVED
13-Jul-2010 MODIFIED