Bisexual mussel
Semimytilus algosus
Fun Fact: They have a male gonad on one side and a female on the other.
Introduction: Bisexual mussels (Semimytilus algosus) have a male gonad on one side and a female on the other. This hermaphroditic species is small and elongate in shape.
Distribution: Throughout the coastal waters of Namibia from Luderitz north to the Kunene River mouth.
Diet: Filter-feeds through an enlarged sheet-like gill
Colouration: Smooth brown shell that swells below the apex
Breeding: Enormous amounts of sperm and eggs develop into planktonic larvae once shed into the water.
Max size: 50mm
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