36 NANINA. 



N. RUGATA, Martens. PL 9, figs. 32, 33. 



Narrowly perforate, closely rugose, and minutely granulose 

 above ; reddish brown, with a white peripheral band, sometimes 

 reappearing on the spire; whorls 6, the last not deflected in 

 front, obtusely angulated on the periphery. 



Diam. 48, alt. 32 mill. 



Celebes, Timor. 



This is JV. cidaris (fig. 32), of Gray and Pfeiffer, not Lamarck, 

 and N. Clairvillia of Reeve (fig. 33), not Ferussac. 



N. MUMIA, Hombr. et Jacq. PL 11, fig. 51. 



Narrowly umbilicated, irregularly striate above and with spiral 

 lines on the last whorl, base regularly striate; brown, with a 

 yellowish band above the periphery, below it lighter colored ; 

 whorls 5J ; columellar lip reflected, having a dentiform plication. 



Diam. 45, alt. 25 mill. 



Habitat unknown. 



N. HUMPHREYSIANA, Lea. PL 11, figs. 52, 53; PL 12, fig. 54. 



Openly umbilicated, decussated and minutely granulosely 

 rugose above, below without rugae; 3'ellowish brown, with a 

 chestnut peripheral band; whorls 6-7. Diam. 53, alt. 33 mill. 



Pondicliery, Singapore, Sumatra. 



N. nobilis, Reeve, is a S3 r nonym. 



Yar. GEMINA, von dem Busch. Fig. 54. 



Umbilicus narrower, periphery yellowish brown, with a chest- 

 nut band above and another below it. 



Java. 

 Yar. COMPLANATA, von Martens. Fig. 53. 



Shell more depressed, the whorls less convex. 

 N. UNDOSA, Blanford. PL 12, fig. 55. 



Narrowly umbilicated , rather solid , growth-lines oblique, rugose, 

 with irregular sinuous spiral striae above the periphery ; straw- 

 color, sometimes stained darker on the spire, and around the 

 umbilicus ; whorls 5, the last with subplicate carina on the 

 periphery. Diam. 36, alt. 21 mill. 



Ava. 



The only figure published (copied above) has the growth-lines 

 much more rugose than in the type, whilst the spiral sculpture 

 is obsolete ; it is an extreme variety at least. 



