Kingdom Animalia Class Gastropoda Superfamily Trochoidea Scientific name Trochus incrassatus | Phylum Mollusca Clade Vetigastropoda Family Trochidae Rank Species | |
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Similar Trochus squarrosus, Trochus camelophorus, Coelotrochus viridis | ||
Trochus incrassatus is a species of sea snail, a marine gastropod mollusk in the family Trochidae, the top snails.
Contents
The Australian Faunal Directory recognizes this species as a synonym of Trochus stellatus Gmelin, 1791
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.
Distribution
This species occurs in the Indian Ocean off Madagascar.