66 NANINA. 



near it; in some specimens two teeth are seen, one behind the 

 other. 



N. NEVILLI, Godwin-Austen. PL 27, fig. 81. 



Umbilicated, thin, fragile, very obliquely distant^ costulate ; 

 olive-brown ; whorls 5, the last with a line of pointed hairs on 

 the subangulated periphery. Diam. 7 '7, alt. axis 3*5 mill. 



Darjiling. 

 N. LETTHIANA, Godwin-Austen. PI. 28, fig. 88. 



Narrowly umbilicated, sculpture irregular growth-lines, covered 

 with an olivaceous epidermis ; whorls 6^, peripheral carina acute ; 

 columellar margin upright, short. Diam. 7, alt. axis 2'4 mill. 



Ceylon. 

 N. DIKRANGENSIS, Godwin-Austen. PI. 28, fig. 89. 



Imperforate, with microscopic growth-lines; pale amber color; 

 columellar lip strong, perpendicular, slightly protruding in the 

 middle. Diam. 1-6, alt. axis I'l mill. 



Dikrang Valley, Dafla Hills, Assam. 



Smaller, with less conoid spire, and much more rounded below 

 than the next species. 



N. NONGSTEINENSIS, Godwin-Austen. PI. 28, fig. 90. 



Subperforate, very minutely longitudinally ribbed ; pale 

 ochraceous ; whorls 8, the last obtusely keeled ; columellar lip 

 perpendicular, short, thickened. Diam. 2, alt. axis 1'7 mill. 



Khasi Hills. 

 N. TIRUTANA, Godwin-Austen. PI. 28, fig. 91. 



Solid, smooth, with a few indistinct growth-lines; color 

 bleached ; whorls 6, the last obtusely angulated on the periphery; 

 peristome rather thickened, columellar margin strong, vertical, 

 with a distinct thickening or callus on the lower margin. 



Diam. 1'8, alt. axis T3 mill. 



North Khasi Hills. 



N. CHENNELLT, Godwin-Austen. PI. 28, fig. 92. 



Imperforate, very finely longitudinally striate, smooth below, 

 apparently slightly and finely hairy when fresh ; pale horny 

 brown; whorls 6+, suture narrowly margined; columellar lip 

 short, perpendicular, thickened. Diam. 3'6, alt. 2 mill. 



Lhota, Nag a 



