Home > Invertebrates > Bivalves > Rochefortina sandwichensis

Created 1/23/2026

Family Semelidae

INDO-PACIFIC / HAWAII

Rochefortina sandwichensis

Ewa, Oahu, 50 feet, 4mm

 
 

SANDWICH ISLAND CLAM

Empty valves are common in sediment at any depth.  White, yellow, or pink with brown markings, coarse with intersecting axial and concentric threads, prominent brown apex.  Attains 0.2 inch, 4mm.  Red Sea to Japan, Hawaii, and the Society Islands.  Formerly known as Ervilia sandwichensis.