MU(j LAND X'SD FRESHWATER 



Mao'ochlamys politida, G.-A. Singpho Hills. 



Fig. 3. Mantle-margin from the front, showing right shell-lobe and dorsal 

 lobes, X 45. 

 3 a. Ditto showing left shell-lobe and left dorsal lobes, X 4"5. 

 3 b. Genitalia, part of, X 8. 

 3 c. Jaw, X 24. 

 3 d. Teeth of the radula at diffex*ent parts of the row, much enlarged. 



EXPLANATION OF PLATE OXXI. 



Figs. 1. 1 «. MaerocMamys veskula,'Bsi., X 2"5. Mussoorie, N. W. Himalaya. 



2. vesica, var., X 2'4. Oacliar. 



;i garoensis, n. sp., X 2'4. Garo Hills. 



4, 4 a. kurtsi, n. sp., X 2'4. Arakan. 



.5. cacharica, var. glauca, X 2"4. Borpani, Dafla Hills. 



6. rahani, n. sp., X 2-4. Chittagong. 



7. -proha, n. sp., X 2'4. Thyetmyo, Burma. 



8. Sakiella ? Jida, n. sp., X 2'4. Do. Do. 



9. Macrochlamys cinct'ula, n. sp.,x2'4. Dounggying, Burma. 



10. lubricata, n. sp. Type. Silehar, Cachar. 



11. 11 a. andersoniana, Nevill. Type. Ponsee, Yunau. 



12. Sakiella honesta, Gould, 



EXPLANATION OF PLATE CXXII. 



Macrochlamys sufflava, n. sp. Typical. Lhota Naga Hills. 



Fig. 1 Genitalia, X 8. With spermatophore within the spermatheca. 

 Auiatorial organ shown detatched. 

 1 a. A portion of the spermatophore, part of the flume, much enlarged. 

 1 /). Ditto Ditto end of capsule, X 46. 



1 c. Ditto Ditto spines at base of capsule, X 46. 



Macrochlamys sufflava, n. sp. Eastern Burrail Eange. 



Fig. 2. Genitalia, X 19. ep, epiphallus. 



2 a. Portion of the male organ, at retractor muscle attachment, with small 



coiled eajcum. 

 2 h. Portion seen from the other side, much enlarged. 

 2 c. Jaw, X 12. 



Macrochlamys sufflava, n. sp. Naga Hills. 

 Fig. 3. Spermatophore, part of. cap. capsule ; /?. flume, much enlarged. 



. Macrochlamys sufflava, n. sp. Hengdan Peak, N. Cachar. 

 Fig. 4. Part of the radula, X 368. 



Macrochlamys vesica, var. oglei, n. Diyung Valley, Singpho Hills. 

 Fig. 5. Mantle-zone showing shell-lobes detached from the animal, X 6'5. 



Cryptausfenia moyongeiisis, n. sp. N. Khasi Hills. 



Fig. 6. Mantle-zone detached from the animal, X 4'5. 

 6 a. Genitaha, part of, X 4'5. 

 6i. Amatorial organ, X 8. 



am. or, amatorial organ; C(B, caecum near retractor muscle of penis ; gen. ap, 

 generative aperture; od, oviduct ; p, penis; r.m.p, retractor muscle of 

 penis ; ft, flume of spermatophore, vide fig. 1 c ; cap, capsule of spermato- 

 phore, vide fig. 1 b. 



