NANINA. 109 



N. TUGURIUM, Benson. PI. 36, fig. 78. 



Perforate, thin, radiately striate and distantly rugate, lightly 

 decussated by spiral lines, barely shining, base smoothish; 

 greenish fulvous, aperture whitish, sublabiate within the margin ; 

 whorls 6, periphery subangulate. Diam. 21, alt. 11 '5 mill. 



Darjiling. 

 N. SPLENDENS, Hutton. PI. 36, figs. 79, 80. 



Very narrowly perforate, thin, shining, striae most apparent 

 at the suture, with very minute spiral lines ; chestnut-corneous, 

 base lighter ; aperture remotely callous-labiate within ; whorls 

 6:J. Diam. 15, alt. 5-5 mill. 



Mahassu, Himalayas. 

 N. PETASUS, Benson. PL 36, figs. 81, 82. 



Perforate, translucent, stimulate, shining ; corneous ; the lip 

 callously white-margined within ; whorls 6, suture slightly 

 channeled. Diam. 10, alt. axis 4 mill. 



Tenasserim, Burmah. 



A variety has a more convex spire. 



N. ASPIDES, Benson. PL 36, figs. 83-85. 



Perforation nearly covered, scarcely striulate, smooth, pol- 

 ished, subdiaphanons ; corneous, whitish on the base; whorls 6, 

 suture submargined, aperture with white marginal callus within. 



Diam. 11, axis 5 mill. 



Burmah. 



N. JAMUENSIS, Theobald (unfigured). Kashmir. 



N. AFRA, Pfr. (unfigured). Cape of Good Hope. 



Section SOPHINA, Benson, 1859. 

 N. CALTAS, Benson. PL 37, figs, 86-90. 



Umbilicated, rather solid, polished, growth-lines minute and 

 close, below the suture slightly channeled and with some spiral 

 striae ; light corneous, lighter below ; inner lip white ; columella 

 medially subdenticulate ; whorls 4J-5J. Diam. 13'5,alt. 8'5 mill. 



Moulmein, Burmah. 

 Var. DISCOIDALTS, Stoliczka. PL 37, fig. 88. 



Umbilicated, thin, pellucid ; light corneous, chestnut-banded 

 above the peripher}^ ; whorls 5-5^, suture slightly channeled. 

 Diam. 10'5, alt. 5-5 mill. 



