EXPLANATION OF PLATE V. 

 Radular teeth of freshwater molluscs from Bombay. 



The teeth of the different forms of Linuiaea proceed in each figure from the 

 centre outwards in the natural order. Most of the lateral teeth are omitted, only 

 the innermost one on each side being shown. Only a few of the marginal teeth on 

 one side are figured. a '=■ central tooth with innermost lateral tooth on either 

 side, b = marginal teeth. 



Limnaea acuminata, Lamarck. 



Fig. I. — Teeth of the forma typica, X 500. Specimen from Khaii- 

 dalla. 



,, 2. — Teeth of the var. nana, X 500. Specimen from Khan- 

 dalla. 



Limnaea chlamys, Benson. 



Fig. 3. — Teeth, x 500. Specimen from vSatara fort. 



Limnaea pinguis, Dorhn. 

 Fig. 4. — Teeth, X 500. Specimen from Khandalla. 



Mclania tuberculata (Miiller), 

 Fig. 5. — Teeth, X 250. Specimen from Igatpuri, Nasik district, 



Melania scabra (Miiller). 

 Fig. 6. — Teeth, x 250. Specimen from the Yenna R. at Medha. 



Paludomus obesa (Philippi). 

 Fig. 7. — Teeth. X 250 Specimen from Khandalla. 



Ampullaria nux, Reeve. 

 Fig. 8. — Teeth, X 75. Specimen from Khandalla. 



