Ethalia

Ethalia is a genus of sea snails, marine gastropod mollusks in the family Trochidae, the top snails.[3]

Ethalia
Two views of a shell of Ethalia sanguinea
Scientific classification
Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
Clade: Vetigastropoda
Order: Trochida
Superfamily: Trochoidea
Family: Trochidae
Genus: Ethalia
H. & A. Adams, 1854 [1]
Type species
Rotella guamensis
Quoy & Gaimard, 1834
Synonyms

Liotrochus Fischer, 1879 [2]

Description

The species are moderate-sized. The orbicular shell is turbinately depressed. The whorls are convex, smooth or transversely striated, the last one rounded at the periphery. They have a mottled or streaked color-pattern. The umbilicus is partly closed by a callus deposit. The columellar lip ends anteriorly in an obtuse dilated callus. The callus emitted at the columellar-parietal angle of the aperture is tongue-shaped, closing the umbilicus except a rather narrow chink, or even entirely, in some species.[4]

Distribution

This genus occurs in the Central and East Indian Ocean, off East Africa, off Indo-Malaysia, and off Australia.

Species

Species within the genus Ethalia include:

Species brought into synonymy
  • Ethalia (Ethaliella) Pilsbry, 1905: synonym of Ethaliella Pilsbry, 1905
  • Ethalia candida A. Adams, 1862: synonym of Leucorhynchia candida (A. Adams, 1862)
  • Ethalia capillata Gould, 1862: synonym of Ethaliella capillata (Gould, 1862)
  • Ethalia floccata G. B. Sowerby III, 1903: synonym of Ethaliella floccata (Sowerby, 1903)
  • Ethalia lirata E.A. Smith, 1871: synonym of Leucorhynchia lirata (E.A. Smith, 1871)
  • Ethalia multistriata A. E. Verrill, 1884: synonym of Solariorbis multistriatus (A. E. Verrill, 1884)
  • Ethalia perspicua A. Adams, 1861: synonym of Teinostoma perspicuum (A. Adams, 1861)
  • Ethalia philippii (A. Adams, 1855): synonym of Monilea philippii A. Adams, 1855
  • Ethalia plicata E. A. Smith, 1872: synonym of Leucorhynchia plicata (E. A. Smith, 1872)
  • Ethalia pulchella (A. Adams, 1855): synonym of Ethaliella pulchella (A. Adams, 1855)
  • Ethalia sobrina A. Adams, 1861: synonym of Lissotesta sobrina (A. Adams, 1861)
  • Ethalia striolata Kilburn, 1977: synonym of Ethalia carneolata Melvill, 1897
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References
  1. A. Adams, Proc. Zool. Soc. Lond. 1853, p. 189.
  2. Fischer, Journ. de Conchyl. 1878, p. 207
  3. Ethalia H. & A. Adams, 1854. Retrieved through: World Register of Marine Species on 28 November 2012.
  4. Tryon (1889), Manual of Conchology XI, Academy of Natural Sciences, Philadelphia
  5. Ethalia catharinae Poppe, Tagaro & Dekker, 2006. Retrieved through: World Register of Marine Species on 1 May 2010.
  • Wilson, B., 1993. Australian Marine Shells. Prosobranch Gastropods. Odyssey Publishing, Kallaroo, WA
  • Williams S.T., Karube S. & Ozawa T. (2008) Molecular systematics of Vetigastropoda: Trochidae, Turbinidae and Trochoidea redefined. Zoologica Scripta 37: 483–506.
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