NANINA. 115 



N. TAHAENSIS, Tryon. PL 38, figs, 56-58. 



Imperforate, thin, smooth, subpellucid, very glossy; irregularly 

 dotted and lineated with white radiating lines ; whorls 5. 



Diam. 10, alt. 6 mill. 



Tahaa, Society Islands. 



More solid, darker colored, with flatter whorls and more 

 elevated spire than the preceding species, distinguished also by 

 the scratch-like white markings. Described by Mr. Garrett as 

 N. scalpta, preoccupied by Dr. von Martens. 



b. Periphery angulated. 

 N. ORNATELLA, Beck. PI. 38, figs. 59-61. 



Imperforate, thin, smooth, glossy, pellucid ; yellowish white, 

 yellowish or fulvous, unicolored, or with a narrow chestnut band 

 above the periphery, continuing on the spire, base rarely pur- 

 plish ; whorls 4^, the periphery angulated. 



Diam. 11-3, alt. 7 mill. 



Pitcairn*& Island. 



Distinguished from N. Adamsi, Pfr. (p. 112), by its more 

 flattened, more numerous whorls, more convex base, carinate 

 periphery, pellucid shell, etc. ; still I suspect that the two species 

 must be merged in one, as some of the specimens before me are 

 intermediate in character. 



N. realis, Muhlf., is perhaps a synonym. 



Var. AMCENULA, Beck. 



Flatter, greenish yellow. Ins. Opara. 



N. MISELLA, Fe'r. PL 38, figs. 47, 48. 



Imperforate, thin, very obsoletely striulate, shining, pellucid ; 



yellowish corneous ; whorls 5J, periphe^ angulated. 

 Diam. 8, alt. 4 mill. 



Guam, Moluccas; Sandwich Is.? 



N. RADIANS, Pfr. PL 38, tigs. 51, 52. 



Imperforate, thin, smooth, very shining, pellucid; corneous, 

 irregularly radiately strigate with white; whorls 4^, suture sub- 

 marginate, periphery subangulated. Diam. 9, alt. 4 mill. 



Earotonga; Tahiti? Port Jackson, Australia? 



The latter locality is very doubtful. 



