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Please note: Entries in the above species list are the original binomina of species according to Carlgren's 1949 catalog. Nomenclatorial inconsistencies need to be resolved in a future revision of this genus (see below).
Containing group: Actiniidae


Actiniidae with well developed base and smooth column rarely provided with a cuticle. Margin and fosse distinct. Sphincter usually circumscribed, often strong, rarely restricted. Tentacles simple, short, not attenuated at the base. Longitudinal muscles of tentacles and radial muscles of oral disc ectodermal to more or less mesogloeal. Mesenteries hexamerously arranged. Younger mesenteries growing from the base to the margin wherefore there are usually more mesenteries at the base than at the margin. At least 12 pairs of mesenteries perfect. Retractors diffuse to restricted, often very strong. Gonads in all stronger mesenteries. Cnidom: spirocysts, basitrichs, microbasic p-mastigophors. Embryos often developing in brood-pouches or adherent to column.


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Please note that Carlgren's text contains a number of errors, and much of the information is now out of date.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

All Rights Reserved.

Citing this page:

Tree of Life Web Project. 2000. Epiactis. Version 01 January 2000 (temporary). http://tolweb.org/Epiactis/18362/2000.01.01 in The Tree of Life Web Project, http://tolweb.org/

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