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Containing group: Actinostolidae


Actinostolidae with well developed, enlarged basal disc. Column with numerous, small mesogloeal papillae, all of the same size, and with more or less distinct longitudinal furrows, in the contracted state very low, almost disc-like. Sphincter mesogloeal, very strong, in certain states of contraction projecting as a strong, circular fold in the uppermost part of the column. Tentacles short, conical, hexamerously arranged, not numerous, the inner longer than the outer or both of about same length. Stinging-batteries (probably microbasic b-mastigophors) at the bases of the outer tentacles. Longitudinal muscles of tentacles and radial muscles of oral disc ectodermal. Oral disc wide. Actinopharynx short, with 2 distinct siphonoglyphs. Pairs of mesenteries few, hexamerously arranged, thin and with weak retractors, 6 pairs or a few more perfect. The mesenteries of the first cycle, including the directives, fertile. Cnidom: spirocysts and probably basitrichs, microbasic b- and p-mastigophors.


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Please note that Carlgren's text contains a number of errors, and much of the information is now out of date.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

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Citing this page:

Tree of Life Web Project. 2000. Tealidium. Version 01 January 2000 (temporary). http://tolweb.org/Tealidium/18822/2000.01.01 in The Tree of Life Web Project, http://tolweb.org/

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