Commercially exploited Clams are the Villorita cyprinoides, Paphia malabarica, Meretrix casta, Sunetta scripa, Anadara granosa, Andera rhombia, Meretrix meretrix, Marcia opima, Giloina bengalensis, Gafrarium diverticulum and G. lumidum. Nearly 93.3% of the contribution to the average annual clam production is by three species, namely Villorita cyprinoides, Paphia malabarica and Meretrix casta
