Genus Amphianthus Hertwig, 1882
- Amphianthus Hertwig, R. 1882. Die Actinien der Challenger Expedition. Jena : Gustav Fischer 119 pp. [80].
Type species:
Amphianthus bathybium Hertwig, 1882 by monotypy.
Distribution
States
New South Wales
Extra Distribution Information
New Australian record (C.C. Wallace, A.L. Crowther & D.G. Fautin, unpublished data)
IMCRA
Central Eastern Province (12)
Diagnosis
Hormathiidae with broad pedal disc, often elongated in the transversal or sagittal plane. Column smooth or provided in its upper part with usually small mesogloeal papillae, arranged in longitudinal rows. Cinclides occurring as a rule only over the directive endocoels, few in number, their external opening often mounted on a papilla; in very young specimens cinclides may be indistinct. Tentacles rather robust, sometimes with mesogloeal thickenings on the aboral side at the base, always fewer than the mesenteries at the limbus. Longitudinal muscles of tentacles and radial muscles of oral disc ectodermal. 1-3 siphonoglyphs. Mesenteries often irregularly arranged. 1-3 pairs of directives. The stronger mesenteries fertile except sometimes the directives. Retractors diffuse, usually fairly weak. Acontia well developed.
History of changes
| Published | As part of group | Action Date | Action Type | Compiler(s) |
|---|---|---|---|---|
| 05-Aug-2022 | NYNANTHEAE Carlgren, 1899 | 13-Aug-2013 | MOVED | Dr Bronwen Scott |
| 21-Dec-2010 | ADDED |