34 NERITA. 



X. AFFINIS, Reeve. PI. 9, figs. 51, 53, 54; PL 8, figs. 49, 50. 



Shell usually transverse, closely, somewhat scab rou sly spirally 

 striate, marbled and speckled with white and grey or olivaceous ; 

 aperture bluish white, -minutely obsoletely toothed or edentulate 

 within the outer lip, columellar area smooth, the margin obsoletely 

 toothed. Diam. 10-13 mill. 



Viti Islands. 



X. Samoensis, Dunker (figs. 49, 50), X. costulata, Busch, and 

 probably X. Vitiensis, Hombr. et Jacq. (figs. 53, 54) are synonyms. 



X. PICA, Gould. PI. 9, figs. 59, 60, 76. 



Usually smooth, sometimes spirally striate, black with cuneiform 

 markings or reticulations of white ; aperture whitish, the outer lip 

 smooth within, columellar margin minutely denticulated, the area 

 flattened, smooth. Diam. 15 mill. > 



Japan, Polynesia. 



X. Japonica, Dunker is evidently synonymous, but the figure 

 given for that species in Thes. Conch, and which I have inadver- 

 tently copied (PL 9, fig. 58), is evidently something else. X. melal- 

 euea, Martens and X. rudis, Pease (fig. 76), are to be added to the 

 synonymy. The figure of N. rudis (copied from Pease), very poorly 

 represents the shell ; the types before me are undoubtedly X. jnea. 



X. VEXILLUM, Reeve. PL 9, fig. 61. 



Spirally ribbed, with narrow intermediate grooves, orange colored, 

 with two broad black, orange-spotted bands; aperture yellowish 

 white, outer lip edentulous, columellar margin sharply toothed, the 

 area flat, Diam. 22 mill. 



Hab. unknown. 

 X. ARCTA, Hombr. and Jacq. PL 9, figs. 64, 65. 



Spirally ribbed, white, with scattered dark spots ; aperture with- 

 out teeth, columellar area flattened, smooth. Diam. 17 mill. 



Arm Is., X. of Australia. 



I know nothing of this species; it has been overlooked, as most 

 of the species of these authors have been, by Reeve and Sowerby. 



X. STRICTA, Baird. PL 9, figs. 67, 68, 62. 



With low spiral ridges, and broad shallow interstices, whitish 

 with scattered black markings, varying to greyish black ; aperture 

 yellowish, lip thickened within, edentulate, columellar area smooth, 

 the edge obsoletely dentate. Diam. 12-15 mill. 



Polynesia, Xew Caledonia. 



