Margarella violacea

Margarella violacea
Six live-collected shells of Margarella violacea with each operculum held in place with glue and cotton
Scientific classification
Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
(unranked): clade Vetigastropoda
Superfamily: Trochoidea
Family: Trochidae
Genus: Margarella
Species: M. violacea
Binomial name
Margarella violacea
(King & Broderip, 1832)
Synonyms
  • Margarita persica Gould, A.A., 1852
  • Photinula almyris Rochebrune, A.-T. de & J. Mabille, 1885
  • Photinula halmyris Rochebrune, A.-T. de & J. Mabille, 1891
  • Photinula violacea King & Broderip, 1832

Margarella violacea is a species of small sea snail, a marine gastropod mollusk in the family Trochidae, the top snails.[1]

Contents

Description

The size of an adult shell varies between 7 mm and 13.5 mm. The purplish-pink shell is imperforate, orbicular-conical, thin and smooth. There are four swollen whorls.The suture is scarcely impressed. The rounded-quadrangular aperture is angular above, and subangular at the base of slightly thickened and arcuate columella. The umbilico-columellar tract is excavated. [2]

Distribution

This species occurs in the Atlantic Ocean on the coast of Argentina and the Falkland Islands, i.e. in the Magellanic Region.

References

  1. ^ Bouchet, P. (2010). Margarella violacea (King & Broderip, 1832) . Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=533033 on 2011-07-04
  2. ^ George Washington Tryon, Structural and systematic conchology: an introduction to the study of the Mollusca, p. 279; 1882

External links