Home > Invertebrates > Shells > Worm Shells > Dendropoma gregarium

Updated 10/30/2022

Family Vermetidae

INDO-WEST PACIFIC / HAWAII

Dendropoma gregarium

   


Hulopo'e Bay tidepool, Lana'i

Diamond Head, Oahu
 
   

Diamond Head, Oahu

 

Vermetid Reef, Diamond Head, Oahu

 
   

GREGARIOUS WORM SHELL

Thousands of shells grow upon each other, forming thick mats on wave benches or rocks near the low tide mark of select locations.  Coiled brown shells often coated by coralline algae, aperture dark brown.  Aperture diameter 0.1 inch, 3mm, overall diameter 0.5 inch, 12mm.  Formerly known as Dendropoma gregaria.  Oman to Hawaii and the Society Islands.