118 NANINA. 



N. VESTII, Jickeli. PI. 39, figs. 19-21. 



Narrowly perforate, translucent, a little shining, lightly closely 

 spirally striated, obsolete!}' decussated by longitudinal lines ; 

 fulvous corneous ; whorls 4f , suture thread-margined. 



Diam. 2, alt. 1-25 mill. 



Abyssinia. 

 N. WILSONT, Semper. PI. 39, figs. 16-18. 



Yery narrowly perforate, thin, diaphanous, very shining; 

 light corneous; whorls 4|-5, suture submargined. 



Diam. 12'5, alt. 7 mill. Ins. Palau. 



E. MARGARITACEA, Semper. PI. 39, fig. 6. 



Perforate, thin, lacteous, hydrophanous, very smooth ; whorls 

 6-6 J, suture submargined, periphery subangulated. 



Diam. 7, alt. 5'5 mill. Ins. Palau. 



N. STEPHUS, Benson. PI. 39, figs. 22-24. 



Very narrowly perforate, smooth, scarcely striulate, polished, 

 translucent; fulvous; whorls 6, suture submargined, last whorl 

 very obtusely angulate above the periphery ; lip subsinuous. 



Diam. 10, alt. 4'5 mill. 



Port Blair, Andaman Is. 

 N. SUCCINEA, Pfr. PI. 39, figs. 25-27. 



Obsoletely subperforate, thin, pellucid, shining; amber- 

 colored ; whorls 5, rapidly enlarging, suture submargined. 



7ns. Luzon, Philippines. 



A variety occurs in the island of Mindoro with the periphery 

 obsoletely chestnut-banded. 



N. LACTEA, Semper. PL 39, figs. 98-100. 



Very narrowly perforate, hyaline, glabrous, shining ; whitish ; 

 whorls 5, suture margined. Diam. 7, alt. 4 mill. 



Mt. Arayat, Ins. Luzon. 

 N. UMBRINA, Pfr. PL 39, fig. 7. 



Scarcely perforate, thin, lightly striulate, very glossy; umber 

 brown; whorls 4J, suture margined. Diam. 7, alt. 3 mill. 



Ceylon. 

 N. THWAITESI, Pfr. PL 39, fig. 5. 



Perforate, striulate, shining; yellowish white; whorls 6J, 



suture submargined. Diam. 5, alt 3 mill. 



Ceylon. 



