NANINA. 105 



N. CERATODES, Pfr. PI. 35, figs. 27, 28. 



Subperforate, thin, minutely striulate, a little shining, pellucid ; 

 corneous ; whorls 5. Diam. 16-5, alt. 9 mill. 



Ins. Luzon and Mindoro. 

 Vitrina centralis, Beck, is a synonym. 



f- 

 N. BISLINGENSIS, Semper. PI. 35, figs. 29-31. 



Scarcely perforate, thin, striulate, shining ; orange-brown ; 

 whorls 4-4^, suture margined. Diam. 10-5, alt. 6 mill. 



Ins. Mindanao. 

 N. SARCODES, Reeve. PL 35, fig. 32. 



Scarcely umbilicated, very thin, smooth, fragile, yellowish 

 corneous, pellucid ; whorls 4, suture margined. 



Philippines. 

 N. SUBFUSCA, Beck. PI. 35, figs. 33-35. 



Subperforate, thin, lightly striulate, pellucid ; brownish cor- 

 neous ; whorls 4j, suture submargined. Diam. 1T5, alt. 6'3 mill. 



Sorsogon, Ins. Luzon. 

 N. EXCENTRICA, Pfr. PI. 35, figs. 36, 31. 



Subperforate, excentrically subcostulate, thin, shining, yellow- 

 ish ; whorls 4, flat above, inflated below, periphery acutely 

 carinated. Diam. 18, alt. 8'5 mill. 



Ins. Siguijor. 

 N. CUMULUS, Pfr. PL 35, fig. 38. 



Perforate, thin, lightly striulate, shining, fulvous corneous ; 

 whorls 5^, suture submargined, periphery subangulate. 



Diam. 10, alt. 5 mill. 



Manning River, Eastern Australia. 



N. MARMORATA, Cox. PL 35, figs. 39, 40. 



Perforate, smooth, very shining ; brownish corneous; whorls 



6. Diam. 10, alt. 5*5 mill. 



Port Curtis, etc., Australia. 

 N. VILLARIS, Pfr. PL 35, fig. 41. 



Perforate, rather thin, smooth, shining; whitish corneous; 

 whorls 5^, suture margined. Diam. 10'5, alt. 5*5 mill. 



Cape York, etc., Australia. 

 N. Kreffti, Cox, is a synonym. 



