Biology:Trochus incrassatus
| Trochus incrassatus | |
|---|---|
| |
| Drawing showing three views of a shell of Trochus incrassatus | |
Scientific classification 
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| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Gastropoda |
| Subclass: | Vetigastropoda |
| Order: | Trochida |
| Superfamily: | Trochoidea |
| Family: | Trochidae |
| Genus: | Trochus |
| Species: | T. incrassatus
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| Binomial name | |
| Trochus incrassatus Lamarck, 1822
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| Synonyms | |
|
Trochus creniferus Kiener | |
Trochus incrassatus is a species of sea snail, a marine gastropod mollusk in the family Trochidae, the top snails.[1]
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
- 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
External links
Wikidata ☰ Q7844909 entry
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