Temporary Page


Ilyanthus mitchelli Gosse 1853

Please note: Ilyanthus mitchelli is the original binomen of this species according to Carlgren's 1949 catalog. Nomenclatorial inconsistencies need to be resolved in a future revision of this genus (see below).
Containing group: Haloclavidae


Haloclavidae divisible into physa, scapus and scapulus, physa not distinctly marked off from scapus sometimes ampullaceous, sometimes broadly adherent as a flat base. Margin of scapus sometimes forming a collar. A weak diffuse sphincter. Tentacles simple, few, the inner shorter than the outer ones, very regularly but quite atypically arranged with 7 tentacles in the first cycle. The directive tentacle issuing from the compartment corresponding to the single siphonoglyph belongs to the first cycle, the other directive tentacle to the second. Siphonoglyph without conchula. Same number of mesenteries proximally and distally, all mesenteries perfect, and all or the largest ones fertile. Retractors strong, restricted.

Other Names for Ilyanthus mitchelli Gosse 1853


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Please note that Carlgren's text contains a number of errors, and much of the information is now out of date.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. Mesacmaea. Ilyanthus mitchelli Gosse 1853. Version 01 January 2000 (temporary). http://tolweb.org/Ilyanthus_mitchelli/17915/2000.01.01 in The Tree of Life Web Project, http://tolweb.org/

edit this page
close box

This page is a Tree of Life Leaf Page.

Each ToL leaf page provides a synopsis of the characteristics of a group of organisms representing a leaf at the tip of the Tree of Life. The major distinction between a leaf and a branch of the Tree of Life is that a leaf cannot generally be further subdivided into 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

Ilyanthus mitchelli

Page Content

articles & notes



Explore Other Groups

random page

  go to the Tree of Life home page