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Hormosoma scotti Stephenson 1918

Containing group: Actinostolidae


Actinostolidae with well developed pedal disc. Column smooth, thick, with a submarginal collar. Sphincter strong, mesogloeal. Tentacles short, but thick, arranged in several cycles, the inner longer than the outer. Outermost cycle of tentacles on their aboral sides at the base provided with a more or less distinct battery of microbasic b-mastigophors. Longitudinal muscles of tentacles and radial muscles of oral disc mesogloeal. Oral disc wide. 2 very broad siphonoglyphs, aborally prolonged. Tentacles and mesenteries hexamerously arranged. 2 pairs of directives. About same number of tentacles and mesenteries. Perfect pairs of mesenteries fairly numerous. Retractors with coarse folds forming a small pennon close to the gonads. Parietobasilar muscles very broad, forming a deep fold, basilar muscles strong. All mesenteries, sometimes except the directives, fertile. Cnidom: spirocysts, basitrichs, microbasic b- and p-mastigophors.

Other Names for Hormosoma scotti Stephenson 1918


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Please note that Carlgren's text contains a number of errors, and much of the information is now out of date.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. Hormosoma. Hormosoma scotti Stephenson 1918. Version 01 January 2000 (temporary). http://tolweb.org/Hormosoma_scotti/18824/2000.01.01 in The Tree of Life Web Project, http://tolweb.org/

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