NANTNA. 31 



N. MIXHAXAEXSIS, Semper. PL 9, fig. 31. 



Perforate, solid, ruoosely striate, brown, with a blackish 



/ 



peripheral line ; whorls 5|, suture impressed, first whorls plane, 

 the last two rounded, subcarinate. 



Diam. 44-57 mill., alt. 22-31 mill. 



Ins. Mindanao, Philippine*. 



N. BASILEUS, Benson. PI. 10, fig. 36. 



Narrowly umbilicated. irregularly striulate, becoming folded 

 toward the suture, with obsolete spiral sulci, more numerous on 

 the base, and oblique ruga* ; whitish, under a deciduous yellowish 

 epidermis, with a wide chestnut band under the periphery ; 

 interior chestnut-tinged with a median white band having an 

 inferior dark chestnut border; whorls 5, the last not descending, 

 subangulate at the periphery. Diam. 72, alt. 36 mill. 



Anamully Hills, Central India. 



It is N. Titanica, Pfr. 



N. GERVAISII, Dubrueil. PI. 9, fig. 35. 



Umbilicus small, subcallous, solid, longitudinally striate, last 

 whorl malleate ; horny-red colored, interior white ; whorls 7, the 

 last subcarinate on the periphery. Diam. 83, alt. 35 mill. 



? Philippines. 

 N. MULLERI, Pfr. PI. 10, fig. 37. 



Scarcely umbilicated, solid, minutely rugosely reticulated, 

 irregularly malleate ; chestnut-color ; base darker, red spotted 

 below a subperipheral dark band ; whorls 4^, the last subangulate. 



Diam. 39, alt. 23 mill. 



Isl. Mindoro, Philippines. 

 Is N. ovum, Pfr., vur. 



N. MAXIMA, Pfr. PI. 10, fig. 38. 



Narrowly perforate, solid, ponderous, irregularly striate by 

 growth lines ; chestnut brown above the periphery, with yellow- 

 ish bands, various in number, wider or narrower, below the per- 

 iphery dark chocolate, not banded ; whorls 6^, with deeply im- 

 pressed suture, the last angulate on the periphery; aperture pale 

 bluish, showing white bands ; lower margin of lip thickened 



within. Diam. 90, alt. 42 mill. 



Philippines. 



