pulmonata. 81 



21. Nanina striata. B.M. 



Shell rather solid, subpellucid, whitish ; periostracum thin, oli- 

 vaceous ; spire slightly convex, closely striiited transversely ; the 

 last whorl nearly smooth in front. Lat. 15, alt. 9 lin. 



Nanina striata, Gray in Proc. Zool. Soc. 1834, 59, 



Miill. Sy7wps. 5. 

 Helix striata, Pfr. Mon. Helic. i. 55. 

 Hab. ? 



22. Nanina decussata. 



Shell perforate, depressed, thin, nearly smooth, veiy minutely 

 decussated above under a strong lens, silky shining, pale reddisli 

 horn-coloured ; spire little raised ; apex blunt ; suture slight, 

 bordered ; whorls six, moderately convex, enlarging gradually, 

 the last not descending, obsoletely angled at its periphery, rather 

 flattened beneath ; aperture little oblique, depressed, lunate, 

 somewhat angular ; peristome simple, straight, with distant mar- 

 gins : columellar margin scarcely arched, declivous, very shortly 

 reflected above. Height 11, greatest breadth 25, least breadth 

 2U mill. {Pfr.) 



Helix decussata, Benson, Pfr. Mo7i. i. 70. n. 158 ; Ic. n. 922. 

 t. 141. f. 23, 24 ; 3Ion. Suppl. 62. 

 Reeve, n. 743. t. 124. 

 Hab. Bengal. 



23. Naxixa vitrinoides. B.M. 



Shell subperforate, depressed, thin, smooth, fragile, pale homv ; 

 spire scarcely elevated; suture margined; whorls six, very slightly 

 convex, the last wide, more convex beneath; aperture widely 

 lunar ; peristome simple, straight, acute, columellar margin 

 scarcely reflected. Lat. maj. 23, min. 21, alt. 12 mill. 



Animal, Gray, Fig. Moll. t. /I. f. 5. 



Helix vitrinoides. Desk, in Guer. Mag. 1831, t. 26; Encycl. 

 Meth. ii. 225. n. 51. 



Chemn. ed. 2, Helix, n. 689. t. 110. f. 10-15. 



Pfr. Mon. Helic. i. 56. 



Strickland in Proc. Zool. Soc. 1848, p. 142; Moll. t. 2. 



f. 1-3. 

 Reeve, n. 151. t. 34, 

 Helix jietrosa, Hutt. Journ. Asiat. Soc. iii. 83. 



Pfr. Mon. i. 56. n. 114 (fide Benson in Ann. Sf- Mag. N. H. 

 2nd ser. ii. 163). 

 Nanina (Xcsta) vitrinoides. Alb. 59, 



E 5 



