PLATE XCVIII. 

 [Part IX.— November 1899.] 



NiLGiRiA Lit;uLATA, Fcrussac. Madras. 



Fig. 1. Animal, view of right side, x 2. 



1 a. Right side of tnantlc-zone, with right dorsal lobe, x 4'5. ret, rectum. 

 1 b. The mantle-zoiic, with right and left dorsal lobes, X 4'5. 

 1 c. Genitalia, x 4"5. ot, ovitheca. 



1 d. Sculpture of shell on penultimate whorl, x 4"5. 



NiLGiRiA TRANQCEBARicA, Fabr. Madras. 



Fig. 2. Oblique cut through the ovitheca, showing internal rugs, x 12'5. 



2 a. Same above the cut, X 12'5. 



2 b. Sculpture of shell on last and penultimate whorls, x 1"5. 



NiLGiRiA cHENUi, Pfr. Cejlon. 

 Fig. 3. Sculpture of shell 22 mm. behind the aperture, x 4-5. 



Ariophanta dalvi, W. T. Blf., subsp. (A. cysis, var.) Mysore. 

 Fig. 4. Genitalia, x 4-5. 



Euplecta SEMiDEcussATA, Pfr. Ccylon. 

 Fig. 5. Sculpture of shell, last whorl, x 8. 



