Home > Invertebrates > Shells > Horns > Cerithium boeticum

Updated 1/27/2026

Family Cerithiidae

HAWAII - ENDEMIC

Cerithium boeticum 



Kawaihae, Hawaii, 15 feet


Waianae, Oahu, 80 feet, 5 mm

Kahalu'u tidepool, Hawaii

 


Kapoho tidepool, Hawaii
   

HAWAIIAN HORN

Abundant on algae on shallow reefs and tidepools.  Whorls slightly inflated with strong beaded spirals aligned to form axial ribs, suture impressed, scattered varices, aperture 1/3 length of shell, color from white to dark brown, often with spirals of contrasting color.  Attains 0.3 inch, 6 mm.  Endemic to Hawaii.  Reported in Kay, 1979 as Bittium zebrum.  Cerithium zebrum is comparatively slender.