Genus Glyphoperidium Roule, 1909

Museums

Regional Maps

• Glyphoperidium Roule, L. 1909. Hexactinides. Expedition Antarctique Française (1903-1905) 1-19 [10].

  Type species:

   Glyphoperidium bursa Roule, 1909 by monotypy.

Distribution

Other Regions

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

Diagnosis

Actiniidae with well developed pedal disc and elongate body. Column broader distally than proximally without verrucae or spherules. Margin and fosse distinct. Sphincter variable from diffuse to more or less circumscribed. Tentacles extraordinarily numerous, hexamerously arranged, in comparison to the size of the body small and delicate, imperfectly retractile, the inner longer than the outer. Longitudinal muscles of tentacles uniformly developed all round the tentacles. Oral disc wide. Actinopharynx long, with 2 very broad siphonoglyphs aborally prolonged. Mesenteries rather thin, more numerous distally than proximally. Not half of the mesenteries perfect. Retractors weak, forming no distinct pennons. Parietobasilar muscles distinct, forming a fold, basilar muscles well developed. The two first cycles of mesenteries sterile. Cnidom: spirocysts, basitrichs, microbasic p-mastigophores.

History of changes