PULMONATA. 117 



banded ; spire conoidal, with the apex rather pointed and for the 

 most part blackish-violaceous ; whorls four and a half, mode- 

 rately convex, enlarging gradually, the last not descending, more 

 convex beneath ; aperture diagonal, lunarly ovate, much broader 

 than high ; peristome simple, straight, with the columellar margin 

 very declivous, reflected above into a triangular lamina. Height 

 17, greatest breadth 32, least breadth 26 mill. {Pfr.) 



Nanina luctuosa, Beck, Ltd. 3. n. 2. 



Helix luctuosa, Pfr. Mon. Suppl. 629. 



Helix citrina, var., Mull. ; Chemn. ; Pfr. Mon. i. 53. 



a. Chestnut-coloured above, with a broad white band above 

 the periphery, white beneath, with a brown umbilical spot. — 

 Chemn. ix. f."ll74! 



|3. BrowTiish-grey above, with the peripherical girdle of the 

 same colour, bordered with brown. — Chemn. f. 1175. 



y. White, with a single blackish-brown girdle. — Chemn. 

 f. 1171. 

 Hab. Moluccas. 



119. Nanina rapa. 



Shell perforated (imperforate) subglobose, with sunken dots, 

 and a sanguine band; whorl deflected inwards above. Lat. 

 18 lin. 



Helix rapa. Mull. Verm. ii. &]. n. 261. 



Chemn. ix. 2. p. 134. t. 131. f. 1176. 



Pfr. in Zeitschr.f. Mai. 1844, p. 178; 3Ion. Helic. i. 62. 



Reeve, Conch. Icon. n. 19. t. 4 ? 

 Hab. Amboina. 



120. Nanina monozonalis. 



Shell perforated, orbiculate convex, ventricose, bright, very 

 finely decussated above with close longitudinal and transverse 

 lines, chestnut, with one white zone above the middle; spire 

 scarcely elevated ; whorls five, slightly convex, the last inflated, 

 whitish around the open perforation; aperture large, rounded- 

 lunar ; peristome acute, columellar margin slightly reflected. 

 Lat. maj. 50, min. 42, alt. 26 mill. 



Hehx monozonalis, Lam. 4. p. 66 ; ed. Desk. p. 29. 



Pfr. Man. Helic. i. 72; Ic. n. 994. t. 150. f. 12, 13. 

 Desk, in Encycl. Meth. ii. 256. n. 126; in Per. i. 182. 



u. 244 (with a variety ?, t. 88. f. 4, 5). 

 Reeve, n. 467. t. 86. 



