126 NANJNA. 



N. HARRIETENSIS, Nevill. PI. 42, fig. 12. 



Narrowly perforate, finely spirally striated, crossed by rather 

 regular growth-lines, but not decussated ; umber-brown ; whorls 



O <O t ' ' 



4. Diam. 2'3, alt. axis 1-3 mill. 



Mt. Harriet, Port Blair, Andaman Is. 



N. CRYPTOMPHALUS, Nevill. PI. 42, fig. 88. 



Narrowly perforate, spirally finely striated; pale brown; 

 whorls 5 ; peristome reflected and angulated at the columellar 

 margin. Diam. 3*1. alt. axis 1'5 mill. 



o ' 



Parisnath Hill, Hazaribagh, Lower Bengal 



(alt. 4480 feet). 

 N. SINICA, Mollendorff. PI. 42, fig. 11. 



Narrowly perforate, thin, pellucid, shining, very minutely 

 striulate ; brownish corneous; whorls 5, the last obscurely sub- 

 angulated ; columellar margin sinuous. 



Diam. 1-5, alt. scarcely 1 mill. 



Prov. Guangdung, China. 



Section SAGDINELLA, Morch, 1872. 



N. DIDRICHSENII, Morch. PI. 42, fig. 13. 



Perforate, shining, subcostulate above, base smooth; whitish; 

 slightly iridescent ; whorls 3^, periphery obsoletely angulated. 



Diam. 2'5, axis 2 mill. 



Sambelong, Nicobar Is. 



N. MICROTROCHUS, Morch. 



Shell obtusely angulated, perforation covered, columella 

 straight, whorls with a pellucid sutural line ; otherwise as in the 

 last species. A^' 3'5, diam. nearly 3 mill. 



Sambelong, Nicobar Is. 

 Unfigured. 



Section THAPSIA, Albers, 1860. 



N. INDECORATA, Gould. PI. 42, figs. 97-99. 



Narrowly umbilicated, thin, smooth, shining ; greenish vellow 

 or brownish corneous ; whorls 5^, suture impressly margined. 



Diam. 14, alt. 7 mill. 



Liberia. 



