1920.] 



B. Prashad : Notes on Lamellibranchs. 



i/i 



Fig. 



2. — Hinge-teeth of Lamellidens jenkiiisiaiuis and its subspecies. 



A. L. jenkinsianus subsp. obesa shells from Upper Assam, 



B. L. jenkinsianus (s.s.), shells from Upper Brahmaputra, Assam. 



C. L. jenkinsianus, subsp. daccaensis, shells from IVIirpur, Dacca 



District. 



