Doughboy Scallop

Mimachlamys asperrima

Mimachlamys asperrima is a bivalve mollusc characterized by its fan-shaped shell, which can grow up to 11 centimetres in size. The shell features broad ribs that radiate from the umbo, with two auricles near the hinge, the anterior one being larger. The exterior shell color can range from yellow to light purple. This species is a filter feeder, extracting microscopic algae from the water that flows through its gills. Encountering this scallop while diving may involve spotting it nestled in crevices among reefs or sandy areas, where it thrives in its natural habitat. Endemic to coastal Southern Australia, the Doughboy Scallop inhabits crevices in both reef and sand environments, typically found at depths of up to 30 metres. Most occurrences are shallower than 40 metres, with a significant number recorded at depths around 20 metres. This species is primarily found in subtropical waters of the Eastern Indian Ocean, making it a common sight at various dive sites in the region. The Doughboy Scallop's reproductive habits involve spawning, although specific details about its breeding cycle are not extensively documented. As a harmless species, it poses no threat to humans, and its presence contributes to the biodiversity of its habitat. While the conservation status of this scallop has not been evaluated, it is generally regarded as a common species within its range.