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Ilyanthus parthenopea Andres 1880


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Containing group: Athenaria


Carlgren's catalog (1949) recognized one genus of Andresiidae, Andresia, containing a single species. Ilyanthus parthenopea is the original binomen of this species. Nomenclatorial inconsistencies need to be resolved in a future revision of this genus (see below).


Andresiidae: Athenaria (Abasilaria) with elongate body, the aboral end physa-like. Sphincter small, endodermal circumscribed. Inner tentacles longer than the outer ones. No differentiation of mesenteries into macro-and microcnemes. Retractors diffuse.

Andresia: Andresiidae of considerable length with rounded aboral end. Column smooth but with a notched parapet and a fosse at the margin. Sphincter small, circumscribed. Tentacles long, hexamerously arranged, not numerous, the inner longer than the outer ones. Longitudinal muscles of tentacles and radial muscles of oral disc ectodermal. 2 siphonoglyphs. 24 pairs of mesenteries, all perfect and fertile. 2 pairs of directives. Retractors diffuse. Cnidom: spirocysts, basitrichs, microbasic p-mastigophors.

Other Names for Ilyanthus parthenopea Andres 1880


Carlgren, O. 1949. A Survey of the Ptychodactiaria, Corallimorpharia and Actiniaria. Kungl. Svenska Vetenskapsakadamiens Handlingar, series 4, volume 1, number 1.

Title Illustrations
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Scientific Name Andresia partenopea
Location Madeira Island
Specimen Condition Live Specimen
Identified By Oscar Ocana from collected specimens
Copyright © Peter Wirtz
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Please note that Carlgren's text contains a number of errors, and much of the information is now out of date.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. Andresiidae. Ilyanthus parthenopea Andres 1880. Andresia. Version 01 January 2000 (temporary). http://tolweb.org/Ilyanthus_parthenopea/17713/2000.01.01 in The Tree of Life Web Project, http://tolweb.org/

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