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Taxon profile

species

Trochus flammulatus Lamarck, 1822

kingdom Animalia - animals »  phylum Mollusca - mollusks »  class Gastropoda - gastropods »  family Trochidae - top-shells »  genus Trochus

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Trochus flammulatus

Author: Pilsbry - Manual of Conchology Serie 1 Volume 11

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Description

General form similar to T. maculatus; thick, solid, heavy; upper surface longitudinally flammulate with dark red, the stripes distinct and broad, about as wide as the intervening whitish spaces; the stripes of the last whorl are continued over the obtuse periphery upon the base, where they become narrower, often bifurcate, and are zigzag. The sculpture above is like that of T. maculatus, the rows of granules about five or six on each whorl and the lower ones compressed, narrow ; there is, besides, a fine, superficial, secondary sculpture of slightly oblique longitudinal minute wrinkles, which are continued over the periphery upon the base, forming there a finely shagreened pattern by the intersection of fine incremental striae. The base is rather more convex than in the typical maculatus, and its outer portion is nearly free from spiral lirae. These number about six ; they are finely, closely crenulated by the wrinkles of the surface. The outer lip of the aperture is not crenulated, the other characters of the aperture and columella are precisely as in T. creniferus.
Alt. 37, diam. 37 mill.;
Source: Tryon & Pilsbry, Manual of Conchology, Serie 1, Volume 11.
Author: Jan Delsing

Similar species

Trochus creniferus A.E. Verrill & S. Smith, 1880
Trochus maculatus Linnaeus, 1758

Links and literature

EN Galli C.: WMSDB - Wolrdwide Mollusc Species Data Base July 10, 2013 [http://www.bagniliggia.it/WMSD/WMSDhome....] [as Trochus flammulatus Lamarck, 1822]
Data retrieved on: 23 November 2013

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