NANINA. 81 



Section XESTINA, Pfeffer. 

 N. SEMIRUGATA, Beck. PL 15, fig. 5. 



Perforated, rather thin, with incremental striae, subdecussated 

 above by concentric impressed lines ; light yellowish brown ; 



whorls 5. Diam. 31, alt. 21 mill. 



Bengal. 

 Is N. globulus, Chemn., not Miiller. 



N. TRANQUEBARICA, Fab. PL 15, fig. 6. 



Narrow^- umbilicated, rather thick, distinctly striated, decus- 

 sated above by obsolete spiral lines ; whitish ; whorls 5^, the 

 last descending in front ; lip slightly thickened. 



Diam. 21, alt 15 mill. 



Tranquebar. 

 N. COCHINCHINENSTS, Pfr. PL 15, fig. 7. 



Perforate, thin, lightly striate, subdecussated above by more 

 remote spiral striae, scarcely shining, smoother and shining 

 below ; light 3 r ellowish brown, paler on the base ; whorls 5J, the 



last not descending. Diam. 22'5, alt. 16'5 mill. 



Cochin China. 



N. WAANDERSIANA, Zollinger. PL 15, fig. 8. 



Subperforate, thin, striulate, with minute spiral lines above, 

 somewhat shining ; yellowish, lighter on the base and becoming 

 reddish on the spire ; periphery encircled b}' two narrow chest- 

 nut bands, one of which appears on the spire, umbilical region 

 reddish, lip salmon-color, interior of aperture fasciate with 

 white; whorls 5^, the last subangulated on the periphery. 



Diam. 35, alt. 26 mill. 



Ins. Bali, Java. 

 N. BALIENSIS, Mousson. PL 15, fig. 9. 



Subperforate, obliquely striate, with a few impressed spiral 

 lines above ; orange-colored or purplish green, becoming purple- 

 red on the spire, aperture grayish blue, lip orange-red ; whorls 

 5i, suture submarginate, last whorl evauescently subangulate. 



Diam. 27, alt. 21 mill. 



Ins. Bali, Java. 



Dr. von Martens considers this and the preceding species 

 varietal forms only, adopting Baliensis for the specific designa- 

 tion. 

 6 



