Trochus

Trochus
Five views of a shell of Trochus maculatus
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Mollusca
Class:	Gastropoda
Subclass:	Vetigastropoda
Order:	Trochida
Superfamily:	Trochoidea
Family:	Trochidae
Genus:	Trochus Linnaeus, 1758
Species
See text
Synonyms[1]
Camelotrochus B. A. Marshall, 1998 Infundibulops Pilsbry, 1889 Infundibulum (Lamprostoma) Swainson, 1840 Lamprostoma Swainson, 1840 Polydonta Schumacher, 1817 Praecia J. E. Gray, 1857 · Trochus (Camelotrochus) B. A. Marshall, 1998· alternate representation Trochus (Infundibulops) Pilsbry, 1889 · alternate representation Trochus (Polydonta) Schumacher, 1817 Trochus (Praecia) J. E. Gray, 1857 · alternate representation Trochus (Trochus) Linnaeus, 1758 · alternate representation

Trochus is a genus of medium-to large-sized, top-shaped sea snails with an operculum, of the family Trochidae, the top snails.^[1]

When the word "trochus" or "Trochus" is used in reference to fishing sea snails for commercial purposes, the usual species targeted is Tectus niloticus, which is valued for its nacre or mother of pearl layer, which was traditionally made into items such as pearl buttons and jewelry. Tectus niloticus is no longer classified as a Trochus species, and it is no longer classified in the family Trochidae; it is now placed in the family Tegulidae.