PLATE CXXTT. 



[Part XL— J/rt;r/i 1910.] 



Macrochlamys sufflava, u. sj). Typical. Lhota Naga Hills. 



Fi<;. 1. Genitalia, x 8. With spermatophore within the spermatheca. Amatoriul 

 organ shown detached. 

 1 (I. K portion of the spermiitopliore, part of the flume, much enlarged. 

 1 b. Ditto Ditto end of capsule, x 46. 



1 f. Ditto Ditto sj)ines at base of capsule, x 4-(!. 



Mackochlamys suki'lava, n. sp. Eastern Buriail Range. 

 Fig. 2. Genitalia, x 19. vp, cpiphallus. 



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



csecnm. 

 2 6. Portion seen from the other side, niuoli enlarged. 

 2 c. Jaw, X 12. 



Macuochla.mys sunr.AVA, n. sp. Xaga Hills. 

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



Macrochlamys sui-ixav.\, n. sp. Hengdan Peak, N. Caehar. 

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



Macrochlamys vesica var. oglei, n. Diyiing Valley, bingpho Hills. 

 Fig. 5. Mantle-zone showing shell-lobes detached from the animal, x (IS. 



Cryptaustenia MOYONGENSis, n. sp. N. Khasi Hills. 



Fig. 6. ^lantle-zone detached from the animal, x -15. 

 6 a. Genitalia, part of, x 4'5. 

 () h. Amatorial organ, x 8. 



am. or, amatorial organ ; cce, ciecum near retractor muscle of penis ; gen. ap, generative 

 aperture ; ov, oviduct ; />, penis ; r.m,p, retractor muscle of peni.s ; //, flume ol' 

 spermatophore, vide fig. 1 c ; cap, capsule of spermatophore, vide fig. 1 /j. 



