NANINA. 101 



N. MARSHALLI, Try on. PL 34, fig. 89. 



Perforate, very thin, flattened on base; with deep regular 

 spiral striae crossed by numerous fine growth-lines ; dark horny; 

 whorls 7, suture moderate, periphery rounding suddenly. 



Diam. 23, alt. axis 8 mill. 



Lhota, Naga Hills, India. 



Described by Austen as N. Lhotaensis, a specific name already 

 used by him for one of the group Kaliella. I change the name 

 as above in recognition of the very efficient aid rendered me in 

 my work by Mr. William B. Marshall. 



N. OPIPARUS, Austen. PL 34, fig. 90. 



Perforate, rather solid, roughly, coarsely, unevenly spirally 

 striate, with minute, irregular growth-lines ; dull ochre-color, 

 with a pale brown band bordering the peristome ; whorls 6, the 

 last well rounded on the periphery and much swollen. 



Diam. 16'7, alt. axis 7 mill. 



Darjiling, India. 

 N. KALA, Austen. PL 34, fig. 91. 



Narrowly perforate, thin, transparent, glossy, finely regularly 

 spirally striate ; very pale ashy ochre ; whorls 5. 

 Diam. 9, alt. axis 3'5 mill. 



Damsang Peak, Doling Hills, Western Bhutan. 



N. GODWINI, Tryon, PL 34, fig. 92. 



Perforate, smooth, transparent, no sculpture; color horny 

 brown, with an olive tinge ; whorls 5. 



Diam. 12, alt. axis 4*7 mill. 



Koliaghur, Brahmaputra River, Assam. 



I have substituted the above name fpr N. Koliaensis, Godwin- 

 Austen (Shells of India, Pt. 4, not Pt. 3); this author having 

 inadvertently used the same specific name for two distinct forms. 



N. CASTANEO-LABIATA, AllSteil. PL 34, fig. 93. 



Perforate, flat below, shining, with fine growth-lines, trans- 

 lucent, moderately solid, rather coarsely spirally striate; pule 

 horny brown, witli a pale ochraceous more or less wide margin 

 at the peristome ; whorls 6, the last somewhat swollen below. 



Diam 13'2-15'8, alt. axis 6-6*8 mill. 



Asalu, Burrail Range, Assam. 



