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Harenactis attenuata Torrey 1902

Containing group: Haloclavidae


Elongate Haloclavidae with a physa-like aboral end which can flatten into a disc. Column smooth with vertical rows of cinclides in its upper part. No sphincter. Tentacles 24, the inner shorter than the outer ones?, their longitudinal muscles ectodermal. A single siphonoglyph without a conchula. All mesenteries macrocnemes. The fifth and sixth couples weaker than the 8 other mesenteries of the first cycle. Only the six primary pairs usually fertile. Retractors and parietal muscles of the older mesenteries strong, the former reniform. Cnidom: spirocysts, basitrichs, microbasic p-mastigophors.

Other Names for Harenactis attenuata Torrey 1902


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Please note that Carlgren's text contains a number of errors, and much of the information is now out of date.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. Harenactis. Harenactis attenuata Torrey 1902. Version 01 January 2000 (temporary). http://tolweb.org/Harenactis_attenuata/17916/2000.01.01 in The Tree of Life Web Project, http://tolweb.org/

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