

PLATE LXXVII. 



[Part VllL— January/ 1898.] 



i'ig- 1- DuRGELLA ASSAMICA, G.-A. : shell, X 4. Durrang District, Assam. 



2. Ditto: portion of side of foot, much enlarged. 



3. Ditto: shell and dorsal lobes detached. 



4. Ditto : jaw, X 30. 



5. Ditto: lateral teeth. 



5 a. Ditto : lateral teeth, much enlarged. 



6. Ditto : generative organs. Lettering as in other Plates. 

 7,7a. DuRGELLA MAiKANGENsis, G.-A., X 4. Klia^ii Hills. 

 7 b, 7 c. Ditto, X 2-4. 



8. Ditto : extremity of foot. 



9. Ditto : jaw, x 12-4. 



10. Ditto : central tooth and side teeth, enlarged. 

 10a. Ditto: outermost laterals, x 368. 



10 i. Ditto: five laterals, very much enlarged. 



11. Ditto: generative organs, portion of, x 124. 



