Genus Actinia Linnaeus, 1767

Museums

Regional Maps

• Actinia Linnaeus, C. 1767. Systema naturae, per regna tria naturae, secundum classes, ordines, genera, species, cum caracteribus, differentiis, synonymis, locis. Holmiae [= Stockholm] : L. Salvii Tomus I. Regnum Animale(pars 2) Editio duodecima, reformata [3 vols., 1766–68], pp. 533–1327. [1088].

  Type species:

   Priapus equinus Linnaeus, 1758 by subsequent designation.

Distribution

States

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

IBRA and IMCRA regions

IMCRA

Central Western Shelf Province (29), Southwest Shelf Transition (30), Southwest Shelf Province (31), Great Australian Bight Shelf Transition (32), Spencer Gulf Shelf Province (33), Western Bass Strait Shelf Transition (34), Bass Strait Shelf Province (35), Tasmanian Shelf Province (36), Southeast Shelf Transition (37), Central Eastern Shelf Province (38), Central Eastern Shelf Transition (39)

Diagnosis

Actiniidae with very wide pedal disc and smooth, low column. A deep fosse is present, and bears a ring of simple or slightly compound marginal spherules, which are commonly conspicuous but can be covered up by the margin in contraction. Endodermal marginal sphincter muscle weak or strong, diffuse, rarely with slight tendency to be meso-endodermal. Tentacles retractile with ectodermal longitudinal muscles. Perfect mesenteries numerous more at the base than at the margin; all stronger mesenteries except directives fertile; retractor muscles of mesenteries diffuse. Cnidom: spirocysts, atrichs, basitrichs, Microbasic p-mastigophores.

General References

Fautin, D.G. 2011. Hexacorallians of the World. http://geoportal.kgs.ku.edu/hexacoral/anemone2/index.cfm

History of changes