Home > Invertebrates > Shells > Horns > Cerithium zonatum

Created 12/25/2025

Family Cerithiidae

INDO-WEST PACIFIC / HAWAII

Cerithium zonatum



Malingin, Mactan, PI, 35 feet,  11.3 mm

ZONED HORN

Rare in Hawaii on algae on shallow reefs, but common elsewhere.  Color and sculpture variable, with two prominent spiral cords with triangular peaks on the last two whorls.  Attains 1.1 inches, 27 mm.  East Africa to Japan, Samoa, and Hawaii.  Superficially similar to Cerithium zebrum.