106 NANINA. 



N. KEPPELLI, Pfr. PI. 35, fig. 42. 



Perforation subcovered, thin, smooth, very lightly minutely 

 stimulate, shining, pellucid, fulvous corneous; whorls 5^, suture 



simple, periphery rounded. Diam. 16, alt. 8 mill. 



S. Cristoval, Solomon Is. 



5^*^ Mauritian Species. 



N. VIRGINIA, Morelet. PI. 35, figs. 43-45. 



Narrowly perforate, substriate, hyaline ; whitish or light 

 fulvous, the base greenish fulvous ; whorls 6, suture margined, 



periphery obsoletely angulated. Diam. 9, alt. 5 mill. 



Mauritius. 

 N. NITELLA, Morelet. PL 35, figs. 46-48. 



Very narrow!} 7 perforate, thin, pellucid, shining, smooth ; light 

 fulvous ; whorls 5, suture narrowly margined. 



Diam. 9, alt. 3 mill. Mauritius. 



N. MAILLARDI, Desh. PL 36, figs. 49, 50. 



Narrowly perforate, thin, fragile, shining ; yellowish ; whorls 5. 

 Diam. 5, alt. 3 mill. Ins. Bourbon. 



N. MINIMA, H. Adams. PL 36, fig. 51. 



Subperforate, thin, scarcely striulate, pellucid, shining; whorls 



4, suture profound. Diam. T3, alt. '5 mill, 



Port Louis, Mauritius. 



N. PR^ETUMIDA, Ferussac. PL 36, figs. 52-54. 



Very narrowly perforated, thin, shining, diaphanous, smooth ; 

 yellowish corneous; whorls 6, suture channeled, periphery ob- 

 scurely lined. Diam. 9, alt. 6'5 mill. 



Ins. Bourbon. 

 N. GEOFFREYI, H. Adams. PL 36, figs; 55, 56. 



Minutely perforate, thin, scarcely shining, lightly and very 

 minutely spirally striulate, irregularly obsoletely longitudinally 

 striate ; olivaceous fulvous ; whorls 6, suture submargined, 



periphery subangulate. Diam. 9, alt. 5 mill. 



7ns. Bourbon. 

 N. PROLETARIA, Morelet. PL 36, figs. 57-59. 



Narrowly perforate, thin, scarcely striulate, semidiaphanous, 

 more shining below ; yellowish corneous ; whorls 6, the last 

 carinate. Diam. 10, alt. 6 mill. Mauritius. 



Morelet suspects that N. Geoffreyi is a synonym of his species. 



