5^6 PULMONATA. 



IIelL\ castanea, Mtill. Verm. ii. 67. n. 262. 



Chemn. ix. pt. 2. l3o. t. 131. f. 11/7, 1178. 



Pfr. Mon. Helic. i. 44. 

 Nanina castanea, Beck, Ind. 4. 

 Hub. Sumatra. 



64. Nanina convoluta. 



Shell orbiculate-depressed, thin, smooth, fragile, b^o\^Tlish 

 horn-coloured, w ith a single white peripheral band ; spire mo- 

 derately produced ; whorls five, narrow, moderately convex, en- 

 larging slowly, the last larger, broader, perforated beneath ; aper- 

 ture semihmate ; peristome simple, sharj) ; columellar margin 

 scarcely reflexed. Height 10, breadth 16 mill. (Desk.) 



Helix convoluta, Desk, in Fer. Hist. i. 401. n. 255 bis, t. 87. f. 2. 

 Pfr. Mon. Suppl. 48. 



Hab. Sumatra. 



65. Nanina umbilicaria. 



Shell perforated, orbiculate-convex, sohd, opake, bright, irre- 

 gularly striated, white, ornamented with three imequal chestnut 

 bands, one at the suture, two at the outline, basal area chestnut ; 

 whorls seven, scarcely convex, the last obsoletely angled ; aper- 

 ture oblique, wide, lunar ; peristome simple, obtuse, basal margin 

 slightly thickened ; columellar margin chlated, reflected, not 

 covering the perforation. Lat. maj. 33, min. 2S, alt. 17 mill. 



Helix umbilicaria, Le Guillon in Revue Zool. 1842, p. 137- 



Chemn. ed. 2, Helix, n. 63. t. 11. f. 14, 15. 



Pfr. Mon. Helic. i. 64 ; Ic. i. 92. 

 Nanina (Xesta) umbilicai'ia. Alb. 59. 

 Hab. Sumatra. 



g. Java. 



66. Nanina inouinata. 



Shell subperforate, couical-semiglobose, thin, nitidulous, mi- 

 nutely granulated, fa\^■n-coloured ; whorls five and a half, nearly 

 level, the last sprinkled with brown spots and flamelets, obso- 

 letely keeled, rounded in front ; aj^erture subrhombic lunar ; jjcri- 

 stome simple, acute. Lat. maj. 28, min. 25, alt. 16 mill. 



Hehx inquinata, V. d. Biisch in Phil. Icon. i. 1. 10. t. 1. f. 4. 



Pfr. Spnb. ii. 19 ; Mon. Helic. i. 46 ; Ic. i. 202. 



Chemn. ed. 2, Helix, n. 169. t. 31. f. 5, 6. 



Reeve, n. 399. t. 76. 

 Nanina (Hemiplecta) inquinata, Alb. 60. 

 Hab. Java. 



