PLATE ex. 



[Part X.— April 1907.] 



]\Iacrochlamys zemoensis, n. sp. Sikkirn. 



Fig. 1, 1 a. Shell, x 2-5. 



1 b. Visceral sac, x 4*5. 



1 c. Animal, right side, from spirit-specimen, x 4*5. 



1 d. Ditto, left side, ditto. 



1 e. Buccal mass and salivary gland : j, jaw, x 4"u. 



1/. Generative organs, amatorial separated from, x 12. 



1^. Jaw, x 30. 



1 h. Central and side teeth of the radula, x 368. 



Macrochlamys rakaensis, n. sp. Sikkim. 



Fig. 2. Shell, X 4-5. 



2 a. Visceral sac, x 4'5. 



2 h. Head with mantle-zone and shell-lobes, 



3. Bensonia camura, Bs. : visceral sac, to show the typical marking of, x 4'5. 



