Trochus incrassatus

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

Trochus incrassatus
Drawing showing three views of a shell of Trochus incrassatus
Scientific classification
Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
Clade: Vetigastropoda
Order: Trochida
Superfamily: Trochoidea
Family: Trochidae
Genus: Trochus
Species:
T. incrassatus
Binomial name
Trochus incrassatus
Lamarck, 1822
Synonyms

Trochus creniferus Kiener

The Australian Faunal Directory recognizes this species as a synonym of Trochus stellatus Gmelin, 1791[2]

Description

The height of the shell attains 30 mm, its diameter also 30 mm. The, thick, heavy, solid shell has a conical shape. It is, whitish, radiately striped above and below with purplish red. The outlines of the spire are convex. The 7 to 8 whorls are coarsely granulose in about 5 or 6 spiral series, of which the upper series is most prominent. The periphery is rounded. The base of the shell is a little concave, with about 7 concentric granulose or subgranulose lirae. The aperture is strongly lirate within upon the parietal and outer wall. The basal margin contains four or five teeth. The columella is dentate. The umbilical tract is nearly smooth or obsoletely spirally plicate.[3]

Distribution

This species occurs in the Indian Ocean off Madagascar.

References
  1. Trochus incrassatus Lamarck, 1822. Retrieved through: World Register of Marine Species on 1 May 2010.
  2. Australian Faunal Directory: Trochus stellatus Archived 14 July 2014 at the Wayback Machine
  3. H. Pilsbry, Manual of Conchology XI, Academy of Natural Sciences, Philadelphia
  • Lamarck, J.B. 1822. Histoire naturelle des Animaux sans Vertèbres. Paris : J.B. Lamarck Vol. 7 711 pp.
  • Dautzenberg, Ph. (1929). Contribution à l'étude de la faune de Madagascar: Mollusca marina testacea. Faune des colonies françaises, III (fasc. 4). Société d'Editions géographiques, maritimes et coloniales: Paris. 321–636, plates IV-VII pp
    This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.