(Z XERITIXA. 



N. DRINGII, Recluz. PI. 26, figs. 90, 91. 



Rather thin, whorls obliquely rugulose, with yellow bands on a 

 blackish ground, sometimes obliquely longitudinally strigate with 

 black or brownish and yellow ; aperture bluish, tinged with yellow 

 around the margin and on the columellar area, columellar margin 

 subarcuated and dentate in the middle. Diam. 12 mill. 



Hanover Bay, N. Australia. 



X. FLEXUOSA, Gassies. PI. 26, fig. 92. 



Oblique, flexuous, striulate, scarcely shining, thin, yellowish oli- 

 vaceous, somewhat auatomosely strigate with longitudinal black 

 lines, sometimes obscurely yellowish banded ; aperture yellowish, 

 columellar area bluish white, flattened, subpunctate, margin sub-in- 

 cised, with a superior, rather strong tooth. Diam. 5, alt. 7*5 mill. 



New Caledonia. 

 X. UXIDEXTATA, Recluz. PL 26, fig. 93. 



Thin, olivaceous, with oblong, oblique yellowish maculations, last 

 whorl a little angulated and flattened above ; aperture yellowish 

 green near the margin, columellar lip narrow, whitish, its margin 

 with a single superior tooth, and scarcely arcuated. 



Diam. 12 mill. 



Taheiti. 



Sometimes a short spine occurs at the superior angle of the lip. 

 The species has not been recognized. 



N. COMOREXSIS, Morelet. PL 26, figs. 94, 95. 



Solid, irregularly striulate, not shining, greenish grey; brown- 

 spotted ; aperture grey or greyish brown, columellar area plane, 

 yellowish, the margin with one to three obtuse denticles. 



Diam. 9 mill. 



Comoro Is. 



Unfigured species, probably belonging to Clithon. 



N. RARISPIXA and X. LESLOXI, Recluz. Sicily. 



The locality is doubtless erroneous. 



N. GUTTATA, Recluz. New Guinea. 



N. PFEIFFERIAXA, Recluz. New Ireland. 



N. BOURGAINVILLEI, Recluz. Samoa Is. 



N. DACOSTJE, Recluz. Philippines. 



X. MEXKEAXA, Recluz. Taheiti. 



