Genus Diadumene Stephenson, 1920
- Diadumene Stephenson, T.A. 1920. On the classification of Actiniaria. Part I. Forms with acontia and forms with a mesogloeal sphincter. Quarterly Journal of Microscopical Science 2 64(256): 425-574 [521].
Type species:
Sagartia schilleriana Stoliczka, 1869 by monotypy.
Distribution
States
Western Australia
Extra Distribution Information
Temperate and tropical waters worldwide.
IMCRA
Southwest Shelf Province (31)
Diagnosis
Diadumenidae with well developed basal disc. Column smooth, divisible into scapus and capitulum which are separated from each other by a collar round the upper margin of the scapus. Scapus with cinclides. Margin of capitulum tentaculate. Sometimes the collar smoothes away when the body is fully extended. Tentacles long, numerous, more or less regularly arranged not or imperfectly retractile. Some or all of the inner tentacles are typically thicker than the other tentacles. Outer tentacles sometimes with macrobasic amastigophores. Six or a few more perfect pairs of mesenteries. Mesenteries more numerous above than below. Retractors diffuse, more or less restricted. Parietobasilar and basilar muscles weak. Perfect mesenteries and the stronger imperfect ones fertile. Acontia well developed. Cnidom: spirocysts, basitrichs, holotrichs, microbasic p-mastigophores, microbasic and macrobasic amastigophores.
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 |
| 19-Nov-2010 | ADDED |