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Cradactis magna Stuckey 1909

Please note: Cradactis magna is the original binomen of this 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 pedal disc. Column cup-like with adhesive verrucae arranged in longitudinal rows and increasing enormously in number a short distance below the tentacles. Several verrucae, in bunches projecting from a common stalk, here form in each intermesenterial compartment, "frond"-like formations. Sphincter decidedly diffuse. Tentacles numerous, short, conical, hexamerously arranged, the inner a little longer than the outer. Longitudinal muscles of tentacles and radial muscles of oral disc ectodermal. Oral disc very wide, folded. Two well developed siphonoglyphs. Mesenteries hexamerously arranged, most of them perfect. Retractors diffuse, bandlike. Parietobasilar and basilar muscles very strong. All mesenteries, apart from the directives, fertile; about the same in number proximally and distally. Cnidom: spirocysts, basitrichs, microbasic p-mastigophors (and microbasic b-mastigophors?).

Other Names for Cradactis magna Stuckey 1909


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Please note that Carlgren's text contains a number of errors, and much of the information is now out of date.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. Isocradactis. Cradactis magna Stuckey 1909. Version 01 January 2000 (temporary). http://tolweb.org/Cradactis_magna/18382/2000.01.01 in The Tree of Life Web Project, http://tolweb.org/

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Cradactis magna

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