Description
Phorcus lineatus (da Costa, 1778)
English: Lined Top Shell; Height 2.7 cm; Originating from Granville, Normandy, France; Shell of own collection, therefore not geocoded.
Deutsch: Höhe 2,7 cm; Herkunft: Granville, Normandie, Frankreich.
Date 8 September 2014
Author H. Zell
Source: https://commons.wikimedia.org/wiki/File:Phorcus_lineatus_01.JPG

Phorcus lineatus, common name the lined top shell, is a species of sea snail, a marine gastropod mollusk in the family Trochidae, the top snails. This species is similar to Phorcus turbinatus in form, but usually has the outlines of the spire more convex. The columella projection or tooth is nearer the base than in the Phorcus turbinatus, and the diverse color patterns will serve to further distinguish the two species. Superfamily: Trochoidea, Family: Trochidae, Genus: Phorcus, Species: Phorcus lineatus (da Costa, 1778).
Synonyms:
Monodonta crassa Montagu, 1803
Monodonta lugubris Lamarck 1822
Osilinus lineatus (da Costa, 1778)
Trochocochlea denudata Monterosato, 1888
Trochus crassus (Pulteney, 1799)
Trochus lineatus da Costa, 1778 (original description)