Home > Invertebrates > Shells > Horns > Rhinoclavis aspera

Updated 10/15/2025

Family Cerithiidae

INDO-PACIFIC / HAWAII

Rhinoclavis aspera



Ma'alaea Bay, Maui, 75 feet, 28mm


Ulong Island, Palau, 3 feet

ROUGH HORN

Rare in Hawaii but common elsewhere, buried in sand at any depth.  White or cream, sometimes with brown flecks or spiral lines, suture impressed, axial ribs composed of nodules.  Attains 2.3 inches, 60 mm.  Red Sea to Japan, Hawaii, and the Tuamotus.