PLATE LXXX. 



[Part XlU.—Jamiary ]898.] 



NiioiRiA soLATA, Benson. Nilgliiri Ilills. 



Fi^'. ]. Shell, X 1-5. 



2. Animal viewed from riglit side, showing edge of mantle and dorsal lobes, x l-o. 

 2 a. Ditto, from left and front side, showing sole of foot, x To. 



3. Kxtremity of foot, showing mucous gland, x 4. 

 4'. (ienerative organs, x 1. 



4 a. Generative (male) organ, x 8. 



Aitini'iiANTA LAvirEs, Mullcr. Bombay. 

 Fig. 5. (lencrative organs, aniatorial organ detached, x 4. 



5 «. Ditto, portion of, showing spermatheca. 



5 li. Ditto, portion of male organ near junction of vas deferens, showing 

 spermatophore in situ, x 1!^. 



5 r. Ditto, terminal end of the amatorial organ, X 12. 



Hemiplecta HUMPHREYSiANA, Lea. Singapur. 



Fig. 6. Animal, front \iew, showing shell- and dorsal lobes, x 2'4. 



• 6 a. Ditto, viewed from the left side, showing edge of mantle and left dorsal lobe, 

 X 2-4. 



6 b. The generative organs, nat. size. 



