Sicyonis
- Sicyonis crassa Hertwig 1882
- Sicyonis tuberculata Carlgren 1921
- Sicyonis ingolfi Carlgren 1921
- Sicyonis variabilis Carlgren 1921
- Cymbactis gossei Stephenson 1918
- Sicyonis hemisphaerica Carlgren 1934
- Actinernus obesa (Verrill?)
- Sicyonis antarctica Carlgren 1939
- Cymbactis erythrocephala Pax 1922
- Sicyonis sumatriensis Carlgren 1928
- Sicyonis aurora Carlgren and Stephenson 1929
- Paractis tubulifera Hertwig 1882
Characteristics
Actinostolidae with well developed basal disc and rather thick column, the upper part of which is able to cover the tentacles. Sphincter weak or fairly well developed, mesogloeal. Tentacles short, the inner considerably stronger than the outer, often more or less thickened on the outer side at the base, about half as numerous as the mesenteries. Longitudinal muscles of tentacles and radial muscles of oral disc mesogloeal, 2 broad siphonoglyphs. Often 16 pairs of perfect mesenteries, a variable number of pairs in which one mesentery is perfect, its partner imperfect. Arrangement of mesenteries not as regular as in Actinostola, but with a strong tendency to different development of the two mesenteries in a pair. Retractors weak, diffuse, parietobasilar and basilar muscles well developed. Mesenteries differentiated into stronger, fertile mesenteries with well developed filaments and into weaker fertile mesenteries without filaments; the latter appear at the base and grow from there in an oral direction but do not reach the most distal part of the body. Cnidom: spirocysts, basitrichs, microbasic p-mastigophors.References
Carlgren, O. 1949. A Survey of the Ptychodactiaria, Corallimorpharia and Actiniaria. Kungl. Svenska Vetenskapsakadamiens Handlingar, series 4, volume 1, number 1.
About This Page
The information provided on this page is based on Oscar Carlgren's 1949 catalog.Copyright © 1949 Swedish Academy of Sciences.
Please note that Carlgren's text contains a number of errors, and much of the information is now out of date. An update of the catalog is currently under preparation in Daphne Fautin's laboratory, and the results of this work will be incorporated in future versions of this page.
Keyboarding of Carlgren's catalog was done as part of a project to create an electronic database of the sea anemones of the world, funded by NSF Grant DEB9521819, awarded to Daphne G. Fautin. This grant is in the program Partnerships to Enhance Expertise in Taxonomy (PEET). Susanne Hauswaldt, Katherine Pearson, and April Wakefield-Pagels contributed to the keyboarding effort.
Correspondence regarding this page should be directed to Daphne G. Fautin at
Page copyright © 2000
All Rights Reserved.
Citing this page:
Tree of Life Web Project. 2000. Sicyonis. Version 01 January 2000 (temporary). http://tolweb.org/Sicyonis/18820/2000.01.01 in The Tree of Life Web Project, http://tolweb.org/
