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Haliactis arctica Carlgren 1921

Containing group: Haliactiidae


Haliactiidae usually with rounded aboral end. Column not divisible into regions, smooth. No sphincter. Tentacles rather numerous, short, the inner longer than the outer ones. Two weak siphonoglyphs and two pairs of directives. 6 pairs of perfect, filamented mesenteries with strong restricted retractors, imperfect mesenteries in cycles, without retractors and as a rule without filaments and gonads; but the mesenteries of the second cycle may have filaments and gonads in their uppermost part. Parietal muscles elongate. Acontia present, their nematocysts basitrichs and microbasic amastigophors. Cnidom: spirocysts, basitrichs, microbasic p-mastigophors, microbasic amastigophors.

Other Names for Haliactis arctica Carlgren 1921


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Please note that Carlgren's text contains a number of errors, and much of the information is now out of date.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. Haliactis. Haliactis arctica Carlgren 1921. Version 01 January 2000 (temporary). http://tolweb.org/Haliactis_arctica/17888/2000.01.01 in The Tree of Life Web Project, http://tolweb.org/

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