Home > Invertebrates > Shells > Horns > Cerithium echinatum

Updated 10/15/2025

Family Cerithiidae

INDO-PACIFIC / HAWAII

Cerithium echinatum

Nanakuli, Oahu, 25 feet

 

YO-257 wreck, Oahu, 70 feet

 

PRICKLY HORN

Common on hard reef deeper than 15 feet.  Solid shell with stout spines, often encrusted with coralline algae.  Attains 2.2 inches, 80 mm.  Red to Sea to Okinawa, Hawaii, and Pitcairn.  Formerly known as Cerithium mutatum.