Nevadneidae
- Gyrostoma glauca Annandale 1915
Introduction
Carlgren's catalog (1949) recognized one genus of Nevadneidae, Nevadne, containing a single species. Gyrostoma glauca is the original binomen of this species. Nomenclatorial inconsistencies need to be resolved in a future revision of this genus (see below).Characteristics
Nevadneidae: Boloceroidaria, the column of which has longitudinal muscles at least in its upper part, but is devoid of spirocysts. Margin tentaculate. No sphincter. Tentacles not deciduous, atypically arranged, without sphincters at their bases. Longitudinal muscles of tentacles and radial muscles of oral disc ectodermal. Weak siphonoglyphs. More than 6 pairs of perfect mesenteries. No differentiation into macro- and microcnemes. 6 first pairs of mesenteries usually sterile. Muscles of mesenteries weak. Origin of the youngest mesenteries and tentacles diverging from the usual type.Nevadne: Nevadneidae with small pedal disc and elongate body, broader in the distal part than in the proximal. Column smooth, but its nematocysts arranged in small groups. The outermost exocoelic tentacles are the largest. Mesenteries of the youngest cycle doubled, as a result of an extraordinary increase in the outermost tentacles, accompanied by the origin of an exocoelic tentacle and thereafter of an endocoelic one on either side of the outermost tentacle. As a rule only the mesenteries of the second cycle are fertile, but traces of gonads may occur on some mesenteries of the first cycle.
References
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Please note that Carlgren's text contains a number of errors, and much of the information is now out of date.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
Page copyright © 2000
All Rights Reserved.
Citing this page:
Tree of Life Web Project. 2000. Nevadneidae. Version 01 January 2000 (temporary). http://tolweb.org/Nevadneidae/17948/2000.01.01 in The Tree of Life Web Project, http://tolweb.org/
