The shell is small, triangular, and shaped like a scallop. The pallial sinus extends up to half the length of the valve and rises sharply in the back. The surface of the shell is smooth and chalky white, with a brown or blackish periostracum.
Habitat & Distribution in Bangladesh:
Sonadia Island, Bangladesh
Environment:
Marine
Main References:
Siddiqui KU, Islam MA, Kabir SMH, Ahmad M, Ahmed ATA, Rahman AKA, Haque EU, Ahmed ZU, Begum ZNT, Hassan MA, Khondker M, Rahman MM (2007) Encyclopedia of Flora and Fauna of Bangladesh, Vol. 17. Molluscs. Asiatic Society of Bangladesh, Dhaka 415 pp.