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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: Hormathiidae


Hormathiidae with well developed base. Body often asymmetrical. Column divisible into scapus and scapulus, the former with weaker or stronger cuticle and numerous irregularly arranged tubercles of varying size. Sphincter mesogloeal. Tentacles more than 100, fewer than the mesenteries at the base, provided on the aboral side with strong thickenings of the mesogloea, arranged in 2 (or more?) more or less distinct cycles. Longitudinal muscles of tentacles ectodermal. Oral disc wide, sometimes forming two lobes. Radial muscles of oral disc ectodermal or meso-ectodermal, stronger over the exocoels than over the older endocoels. 2 well developed siphonoglyphs. 6-8 pairs of mesenteries, perfect and sterile. When more than 6 perfect pairs are present the supernumerary mesenteries often consist of single perfect mesenteries forming pairs with imperfect mesenteries. Pairs of mesenteries of the last cycle originating earlier nearer to the mesenteries of the first and second orders than to those of the third. Retractors of mesenteries diffuse, rather weak. Parietobasilar muscles distinct but weak. Acontia well developed. Cnidom: spirocysts, basitrichs, microbasic 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Please note that Carlgren's text contains a number of errors, and much of the information is now out of date.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

All Rights Reserved.

Citing this page:

Tree of Life Web Project. 2000. Phelliactis. Version 01 January 2000 (temporary). http://tolweb.org/Phelliactis/18127/2000.01.01 in The Tree of Life Web Project, http://tolweb.org/

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