NERITA. 25 



which the colors alternately appear, in other cases promiscuously 

 scattered; aperture white, outer lip minutely dentate within, colum- 

 ellar margin with one or two strong central teeth, area somewhat 

 concave, with a few plicate granules, the central portion, and sur- 

 rounding the teeth, stained blood-red. Diam. 1-1'75 inch. 



Florida, West Indies, 

 The well-known " bleeding tooth." The ribs are sometimes very 

 faint, and occasionally the surface is entirely smooth. 



N. VERSICOLOR, Gmelin. PI. 4, figs. 78, 79 ; PL 5, fig. 80. 



With broad, rounded ribs, separated by narrow grooves, varying 

 occasionally to entirely smooth (fig. 80); light yellowish, rosy or 

 whitish, tessellated, maculated or with zigzag stripes of red and 

 black, in some cases of the latter only, in others forming alternate 

 spiral bands of markings in one color or the othei', but mostly 

 intermingled; aperture white, outer lip dentate within, columellar 

 margin decidedly convex, with three or four distant strong teeth, 

 area smooth or obsoletely plicate. Diam. 75-r25 in. 



Florida, West Indies. 



This is N. striata, Chemn., N. variegata, Chemn., and N. tricolor, 

 Gmelin. 



N. HELiciNOiDES, Recve. PI. 9, figs. 71, 72. 



Whorls faintly spirally ribbed, yellowish, maculated with black 

 or red, sometimes forming alternate bands; lip plicate within, 

 columellar area smooth, the mai'gin two or three dentate. 



Diam. 15 mill. 



Hub. unknoion. 



N. pellis-serpentis. Reeve (fig. 72), is doubtless identical. Very 

 probably this species to be referred to the proceeding, but the figures 

 do not show its convex margined columella. 



N. WiNTERi, Phil. PI. 9, fig. 73. 



Spirally costate, whitish ; lip very thinly toothed within, columellar 



margin four-toothed, area plane, a little wrinkled. Diam. 16 mill. 



2Ioluecus. 

 I know nothing about this species. 



N. iNCERTA, Busch. PI. 8, fig. 48. 



Dark brownish or blackish, minutely speckled with greyish 

 white; lip minutely denticulated within, columellar margin with 

 five small teeth, area smooth. Diam. 14 mill. 



Java. 



