18 NANINA. 



N. CAMBOJIENSIS, Reeve. PI. 6, fig. 9. 



Very narrowly urabilicated, solid ; above fulvous with a sutural 

 black band, below yellowish white, with a wide black band below 

 the periphery, and a black umbilical area ; whorls 6, rather 

 smooth, slightly striate at the suture, the last with obtusely 

 angulated periphery, aperture white within. Diam. 82 mill. 



Cambodia. 

 Helix Mouhoti, Reeve, is a synonym. 



N. GRANARIA, Bock. PL 2, tig. 24. 



Thin, narrowly umbilicated ; whorls 6, with growth-lines and 

 finely granular spiral sculpture, producing a chagreened appear- 

 ance, especially on the last whorl, which is also considerably 

 wrinkled, with a somewhat raised keel at the periphery ; olive- 

 brown, becoming pinkish gray at the apex. 



Diam. 40, alt. 31 mill. 



Mt. Sago, Sumatra ; alt. 2000 ft. 



N. SUMATRENSIS, Mousson. PL 2, fig. 25. 



Narrowly perforate, with rugose close growth-lines, and irreg- 

 ular spiral lines and malleate impressions; yellowish brown, 

 with a subperipheral obscure chestnut band ; whorls 6, the last 

 not deflected in front. Diam. f>l mill. 



Sumatra. 

 N. SANNIO, Pfr. PL 2, fig. -jr.. 



Very narrowly umbilicated, solid, obliquely cost ulately striate, 

 scarcely shining, above light yellowish brown ; whorls 6-.^, slowly 

 enlarging, the last not descending, periphery angulate, below it 

 cinnamon-colored ; aperture white, shining, lip thick, shortly 

 reflected, columellar lip dilated over the umbilicus. 



Diam. 38, alt. 21 mill. 



Jlabita.t unkixnni. 



N. HUGONIS, Pfr. PL 2, figs. 27, 28. 



Very narrowly umbilicated, solid, closely and sharply granulate 

 striate, light brownish ; whorls 8, slowly increasing, yellowish 

 brown above the suture, and at the acutely carinated periphery 

 of the last whorl, below the carina chestnut-colored ; aperture 

 pearly, lip thin, simple. Diam. 38, alt. 22 mill. 



Ins. Labuan. 



