Home > Invertebrates > Bivalves > Acar plicata

Updated 8/20/2025

Family Arcidae

INDO-PACIFIC / HAWAII

Acar plicata

Ala Moana, Oahu, 30 feet

 

 

Kewalo Pipe, Oahu, 50 feet

 

YO-257 wreck, Oahu, 90 feet

PLICATE ARK

Commonly found in clusters under dead coral.  Attains 1 inch.  Red Sea to Japan, Hawaii, and Rapa Nui.  Formerly known as Barbatia divaricata.