56 XERITINA. 



N. SUAYIS, Gassies. PL 18, figs. 100, 1. 



Obliquely ovate, striulate, shining, translucent, yellowish or red- 

 dish, with narrow red and black bands ; aperture reddish, showing 

 three bands, columellar margin obscurely dentate. Diam. 6 mill. 



Loyalty Is. (near 3T. Caledonia). 



K GLABRATA, Sowl). PL 18, figs. 2-5. 



Obliquely ovate, rather solid, smooth, shining, yellowish or cor- 

 neous, with obliquely longitudinal black strigations often reticu- 

 lated, or sometimes with spiral black or reddish bands ; columellar 

 area convex, white, margin obscurely dentate. Diam. 5-7 mill. 



Gambia, Liberia, West Africa. 



N. Webbei, Recluz, is a synonym. 



Unfigured and undetermined Species. 



N. MATONIA, Risso. Mediterranean. 



-TV. miliacea, Reel, is a synonym. 



N. ORNATA, C. B. Ad. (? = ^V. /'///'//.<>. Jamaica. 



The color is pale greenish or livid brown, ornamented with nu- 

 merous rather small irregular spots of bright red ; there are 

 crowded spiral microscopic lines ; the columellar lip is obsoletely 

 toothed. Operculum divided into two concave regions by an acute 

 ridge, which is curved in the direction of the growth. 



Section STANLEYA, Bourg. 1885. 



N. NERITOIDES, Smith. PL 17, fig. 80. 



Imperforate, rather thin, smooth ; whorls 4, convex, subolivaceous, 

 with spiral brownish lines; columella callous, edentulous. 



Diam. 5, alt. 6'5 mill. 



Lake Tanganyika, Africa. 



Unfigured Species. 



N. GIRAUDI and N. SMITHIANA, Bourg. Lake Tanganyika. 



Section CLYPEOLUM, Recluz. 1850. 



N. PULLIGERA, Linn. PL 18, figs. 10, 11, 6-9, 12, 13; PL 19, figs. 



14-19, 22, 24. 



Lightly striate, outer lip raised into a ridge above, epidermis 

 dark brown, sometimes nearly black, or olivaceous, obsoletely or 

 faintly minutely dotted with black; aperture yellowish with a deep 



