NANINA. 



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



Perforation subcovered, thin, smooth, very lightly "minutely 

 striulate, shining, pellucid, fulvous corneous ; whorls 5J, suture 

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



S. Cristoval, Solomon Is. 



%.** 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. 



Yery narrowty 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. 1'3, alt. -5 mill. 



Port Louis, Mauritius. 

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



Yery 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. 



Ins. Bourbon. 

 N. PROLETARIA, Morelet. PL 36, figs. 5*7-59. 



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 synon}- m of his species. 



