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: Calliostomatidae
Genus: Margarella
Species: M. violacea
Binomial name
Margarella violacea
(King & Broderip, 1832)
Synonyms
  • Margarita magellanica Hombron & Jacquinot, 1848
  • Margarita persica Gould, A.A., 1852
  • Margarites violacea (King & Broderip, 1832)
  • Photinula almyris Rochebrune, A.-T. de & J. Mabille, 1885
  • Photinula depressa Preston, 1913
  • Photinula halmyris Rochebrune, A.-T. de & J. Mabille, 1891
  • Photinula solidula Cooper & Preston, 1910
  • Photinula violacea King & Broderip, 1832 (original description)
  • Trochus violacea (King & Broderip, 1832)

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

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

This article is issued from Wikipedia - version of the Monday, December 23, 2013. The text is available under the Creative Commons Attribution/Share Alike but additional terms may apply for the media files.