100 NANINA. 



N. FACETA, Austen. PL 84, fig. 80. 



Scarcely perforate, finely, closely, regularly sculptured ; och- 

 raceous; whorls 4. Diam. 2*1, alt. axis 1-4 mill. 



Dikrang Valley, Dafla Hills, India. 



Somewhat like N. umbraticola, but much smaller and the 

 whorls not so rounded and globose. 



N. ERRATA, Austen. PL 34, fig. 81. 



Thin, transparent, closely, very finely striate under a lens; 

 pale sienna brown ; whorls 4-|, suture shallow. 



Diam. 2-4, alt. axis M mill. 



Lhota, Naga Hills. 

 N. ORIGINARIA, Austen. PL 34, fig. 82. 



Perforate, rather solid, glossy, finely striate ; sienna brown ; 

 whorls 4 A, the last obsoletely subangulate. 



Diam. 2'5, alt. axis 1-5 mill. Munipur, India. 



N. SATA, Austen. PL 34, fig. 83. 



Microscopically decussated, shining ; pale olivaceous gray, 

 black mottled ; whorls 4, suture impressed. 



Diam. 2, alt. axis *8 mill. 



Shengor Peak (6706 feet), Dafla Hills, India. 



N. ANON.E, Austen. PL 34, fig. 84. 



Narrowly perforate, covered with a rough limy deposit, 

 indistinctly spirally striate, with a few growth-lines ; timber 

 brown; whorls 4, suture shallow. Diam. 1-5, alt. '08 mill. 



Calcutta (found on fruit of the custard-apple). 



N. SHENGOR EN sis, Austen. PL 34, fig. 85. 



Narrowty perforate, glossy, spiral^ striate ; olivaceous brown ; 

 whorls 4, suture shallow. Diam. 11*2, alt. axis 4-3 mill. 



Shengor Peak, Dafla Hills, India. 

 Not fully grown. 



N. HARDWICKEI, Austen. PL 34, figs. 86-88. 



Narrowly perforate, regularly finely spirally striate; dull 

 ochraceous brown, with a greenish tint; whorls 6, suture 

 moderately impressed. Diam. 16'2, alt. axis 7 mill. 



Calcutta, Assam, etc. 



It is N. Sylhetensis, Austen MS. I figure several varieties. 



