74 NANINA. 



dark peripheral band, often slightly showing on the upper 

 whorls, suture sometimes narrowly white-margined ; whorls 4^, 

 the last slopingly flattened above to an obtuse peripheral angle, 

 and marked by one or two irregular impressed spiral sulci or 



seams. Diam. 48, alt. 23 mill. 



Moluccas. 



The larger size, more depressed form, obtuse peripheral angle, 

 depressed and seamed body-whorl and usual absence of the 

 opaque white banding serve to distinguish this species from N. 

 citrina. 



Yar. GTBBOSA, Mart. PI. 20, fig. 98. 



More complanate above, the last whorl gibbously tumid below 

 the suture, yellowish, scarcely banded. 



N. LUCTUOSA, Beck. PI. 19, fig. 85. 



Perforate, conoidally depressed, rather thin, striated; chestnut- 

 colored above, with a wide white band above the periphery, white 

 below, and chestnut-colored around the umbilicus, or white, with 

 a chestnut-colored peripheral band, apex usually dark violaceous ; 



whorls 4J. Diam. 32, alt. 17 mill. 



Moluccas. 



N. ZOSTEROPHORA, Pfr. PL 19, fig. 84. 



Scarcely perforate, solid, obliquely stimulate, with slight 

 crowded spiral lines ; whitish, with a chestnut band above the 

 periphery, another near the suture, and a broad one below the 

 periphery ; whorls 6. Diam. 34, alt. 19 mill. 



Hab. unknown. 

 N. FULVIZONA, Mousson. PI. 21 , figs. 1-4. 



Narrowly perforate, moderately solid, distinctly striulate, and 

 with much lighter, more distant spiral lines, somewhat shining; 

 whitish or light yellowish white, becoming brown at the apex, 

 with a narrow yellowish brown or chestnut band above the 







peripheiy, showing above the suture on the spire; whorls 5, 

 suture crenulately striulate. Diam. 35-41, alt. 20-25 mill. 



Celebes. 



A variety (figs. 3, 4) is olivaceous above, or all over, the band 

 wider or separated into two contiguous bands, sometimes 

 narrowly chestnut-colored around the umbilicus. 



