MOLLUSCA OK INDIA. 



233 



EXPLANATION OF PLATE CVI. 



Macrochlamys sequajc, Bs. Darjiling. (Ex Blanford Collection.) 



Fig. 1. Shell, X 24 : typical, 



1 a. Genitalia, X 8. 



1 b. Jaw, X 24. 



1 c. Admedian teeth of radula, 10th to 16th. 

 \d. Outermost teeth. 



Macrochlamys sequins, n. sp. Damsang. 



Fig. 2. Shell, X 2-5. 



2a. Animal, viewed from left side: shell removed, showing visceral 

 sac, X 8. 



2 b. Edge of mantle, sliowing shell- and neck-lobes, X -4. 

 2 c. Ditto, showing left shell-lobe. 



2 d. The generative organs, X 8. 



2e. Kalk-sac or flagelliun, with spermatophore forming. 



'If. Jaw, X 24. 



2g. Poi-tiou of row of radula, 8th to 15th admedian teeth. 



Macrocklamt/s seguax?,'Bs. Darjiling. (From Colonel Mainwaring.) 



Fig. 3. Right side : right shell-lobe in life. 

 3a. Ditto: ditto, more extended. 



3 b. Extremity of foot in life. 



Macrochlamys saihilaensis, n. sp. Richila. 



Fig. 4. Shell, X 2-5. 



ia. Part of the generative organs, X 4'5. 



4 b. The penis {cie, ca;cum), X 8. 

 4 c. Jaw, X 12. 



EXPLANATION OF PLATE CVII. 



Ausienia silcharensis, n. sp. Cachar. 



Fig. 1, 1 a, 1 h. Shell, X 2-4. 



2. Animal, view of right side, showing the large shell-lobes, X 4\o. 

 2a. View of tlie left side, X 2. 



3. Part of generative organs : amatorial organ, spermatheca, 



X 124. 

 3 a. The male organ detached from above, X 12'4. 



Austenia semoensis, n. sp. Sikkim. 



Fig. 4, 4 a. Shell, X 2-5. 



5. Animal, view of right side, X 4"5. 

 6 a. Ditto, left side, X 4-5. 



6. Edge of mantle, detached, showing left shell-lobe and left dorsal 



lobe, X 4-5. 



7. Extremity of foot, X 4'5. 



8. Anterior portion of the visceral sac, X 4'5. 



9. The genitalia, X 12. 



