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Pentactinia californica Carlgren 1900

Containing group: Halcampoididae


Halcampoididae with elongate body divisible into physa, scapus and scapulus. Scapus with tenaculi. No sphincter. Tentacles 20, their longitudinal muscles ectodermal. Radial muscles of oral disc ectodermal. A single, ventral siphonoglyph. Mesenteries 10 pairs of which 5 pairs are macrocnemes, the eight "Edwardsia"-mesenteries + one couple) pairing with the dorsolateral protocnemes. The sixth primary ventrolateral couple is represented by two perfect but weak mesenteries without retractors. Four pairs of microcnemes in the dorsolateral and lateral exocoels, only present in the distal part of the body. Retractors of the perfect mesenteries strong, reniform, parietal muscles rather well developed. Filament present only on the 10 stronger mesenteries. Cnidom: spirocysts, basitrichs, microbasic p-mastigophors.

Other Names for Pentactinia californica Carlgren 1900


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Please note that Carlgren's text contains a number of errors, and much of the information is now out of date.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. Pentactinia. Pentactinia californica Carlgren 1900. Version 01 January 2000 (temporary). http://tolweb.org/Pentactinia_californica/17876/2000.01.01 in The Tree of Life Web Project, http://tolweb.org/

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