Temporary Page



Containing group: Athenaria


Octineonidae: Athenaria with flattened base. Sphincter mesogloeal. Mesenteries divisible into macro- and microcnemes. Retractors of macrocnemes very strong, circumscribed. Acontia present containing only basitrichs.

Octineon: Octineonidae with flat, broad pedal disc without basilar muscles and conical body, the upper part of which is often raised as a cylinder from a lower one. Column divisible into scapus and scapulus, the former with a cuticle, sometimes incrusted [sic] with sand, as also is the pedal disc. Ectoderm of scapus showing a tendency to reduction in certain places. Sphincter mesogloeal, long. Tentacles few, hexamerously arranged, rather weak, capable of involution. Siphonoglyphs indistinct. Only 8 mesenteries, arranged as the macrocnemes of Edwardsia are perfect, fertile, with filaments, acontia and pinnate circumscribed retractors; the fifth and sixth couples, forming pairs with the lateral macrocnemes, are stronger than the mesenteries of the second cycle but of the same appearence [sic]. Very numerous mesenteries only in the proximal part of the body. Parietobasilar muscles broad but weak, their innermost part forming a fold on the macrocnemes. Cnidom: spirocysts, basitrichs, microbasic p-mastigophors.

Other Names for Octineonidae


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Please note that Carlgren's text contains a number of errors, and much of the information is now out of date.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. Octineonidae. Octineon. Version 01 January 2000 (temporary). http://tolweb.org/Octineonidae/17717/2000.01.01 in The Tree of Life Web Project, http://tolweb.org/

edit this page
close box

This page is a Tree of Life Branch Page.

Each ToL branch page provides a synopsis of the characteristics of a group of organisms representing a branch of the Tree of Life. The major distinction between a branch and a leaf of the Tree of Life is that each branch can be further subdivided into descendent branches, that is, subgroups representing distinct genetic lineages.

For a more detailed explanation of the different ToL page types, have a look at the Structure of the Tree of Life page.

close box


Page Content

articles & notes



Explore Other Groups

random page

  go to the Tree of Life home page