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Rochia nilotica, also known as Trochus niloticus, is the economically most important gastropod species in the tropical West Pacific.
The large snail with a circular shell is both an important traditional foodstuff and a leading export article used as a source of mother-of-pearl material for buttons and jewellery.
Rochia nilotica is typically found in shallow, sandy bottoms with algae in reefs, sometimes in areas with dead and occasional live coral patches.
Aquaristically, the large circular snails are very interesting, as they are mainly feeding on thread algae!
Synonymised names
Rochia niloticus (Linnaeus, 1767) · unaccepted (wrong gender agreement of...)
Tectus niloticus (Linnaeus, 1767) · unaccepted
Trochus flammeus Röding, 1798 · unaccepted > junior subjective synonym
Trochus montebelloensis Preston, 1914 · unaccepted > junior subjective synonym
Trochus niloticus Linnaeus, 1767 · unaccepted > superseded combination
Trochus zebra Perry, 1811 · unaccepted > junior subjective synonym






Scott & Jeanette Johnson, Kwajalein Unterwater