Studies on Land and Freshwater Molluscs in the Collection of Western Ghat Regional Centre, Zoological Survey of India, Kozhikode

Molluscs dwelling on land belong to the class Gastropoda and those inhabiting in freshwater are represented by the classes Gastropoda and Bivalvia. About 24000 species of land molluscs and 7000 species of freshwater molluscs are known to science (Lydeard et al., 2004). In India, 1129 species of land molluscs (Ramakrishna et al., 2010) and 208 species of freshwater molluscs (Ramakrishna and Dey, 2007; Köhler & Glaubrecht, 2007; Reid et al., 2013) are so far reported.