EXPLANATION OF PLATE LIV. 



Khasiella ? dinoensis, n. sp. 



Fig. r. — Jaw. X 30. 

 ,, 2. — Sole of foot, contracted in spirit specimen. X 4" 5. 

 ., 3. — Extremity of the foot. X 12. 



Bapuia rengingensis , n. sp. 

 Fig. 4 —Jaw. X 24. 



,, 5.— Edge of mantle with left shell lobe and extremity of 

 foot. X 4-5. 



Macrochlamys rotungensis, n. sp. 

 Fig. 6 — Generative organs. X 8. 

 ,, 7. — Portion of spermatophore. 



Macrochlamys burkilli^ n. sp. 



Fig. 8. — Generative organs. X 8. 

 „ 9.— Jaw. X 58. 



Macrochlamys rotungensis, n. sp., var. 



Fig. 10. — Jaw, x 24, and teeth of radula in different parts of the 

 row, X 360. 



