Size: 2.7 cm
Distribution: All SA coastal and gulf waters
Habitat: Attached to seagrass and algae
Depth: Subtidal to 10+ metres
This small mussel is usually encountered as a solitary animal, attached to seagrass or algae. It is white in colour, usually with a variable pattern of reddish brown. It is strongly ribbed at each end and smooth in the midsection.