20 NANINA. 



N. BALESTERIANA, Lea. PI. 3, fig. 35. 



Perforate, rather thin, obliquely subgranularly sculptured ; 

 chestnut-colored ; whorls 7, the last obtusely angulated at the 



periphery. 



Malacca, Borneo, Sumatra ? 



Pfeiffer considers this a synonym of the last species, but it 

 appears to me to differ considerably in outline. My artist has 

 exaggerated an effect probably of rugose growth-lines into 

 rather conspicuous stripes. 



N. ALBERST, Martens. PL 3, fig. 37. 



Narrowly perforate, with close, suboblique, minutely undu- 

 lated striae ; yellowish brown above, chestnut-colored below ; 

 whorls 6, the last with an obtuse peripheral angle. 



Diam. 30, alt. 18'5 mill. Malacca. 



This, as well as the last species, is made a synonym of N. 

 Janus by Pferiffer. 



N. RUMPHII, Busch. PI. 3, fig. 38. 



Perforate, dark cinnamon-color, white-banded on the carinate 

 periphery, irregularly rugulose striate above, striate below ; 

 whorls 5^ ; aperture brownish within. Diam. 44 mill. 



Java. 

 N. CLYPEUS, Mousson. PL 3, fig. 39, 40. 



Narrowly umbilicated, acutely carinate, flattened above, con- 

 vex below, thin, fragile, striate, broadly rugose and obliquely 

 subundulated above, spirally lined below, light corneous, lighter 

 around the umbilicus, a brown line below the carina. 



Diam. 1-1 - 5 inches. Java. 



Yar. ZOLLINGERIANA. Carina very acute, with the band well 

 marked, the surface light yellowish brown. 



Var. JAGORIANA. Color reddish brown, without a band, the 

 carina more obtuse. 



N. FOVEATA, Pfr. PL 3, fig. 41. 



Subumbilicated, thin, with crowded subacute stria?, and revolv- 

 ing impressed lines, shining ; whorls 5^, cinnamon-color, the 

 carina white, shaded below with chestnut, umbilical region 

 lighter. Diam. 39 mill. 



India. 



