Home > Invertebrates > Shells > Horns > Cerithium rostratum

Updated 10/4/2025

Family Cerithiidae

INDO-PACIFIC / HAWAII

Cerithium rostratum



Kahalu'u, Hawaii, 3 feet, 15 mm

Sandbar, Kaneohe Bay, Oahu, 3 feet

 

 


Kahalu'u, Kona, 3 feet

South Kohala, Hawaii
Cerithium rostratum, Oahu

ROSTRATE HORN

Uncommon on algae-covered surfaces in sheltered areas at any depth.  Lightweight with inflated whorls and finely beaded sculpture, ribs vary in number and texture, color also variable, cream with dark spiral dashes.  Attains 1.1 inches, 27 mm.  Red Sea to Hawaii and French Polynesia.