DRILLTA. 177 



somewhat winged ; light yellowish brown, sometimes with a pale 

 band. L. 26, diam. 9'5 mill. 



Bay of Panama ; five fathoms mud (Cuming). 



D. CASTANEA, Reeve. PL 12, fig. 18 ; PL 34, tig. 87. 



Chestnut-brown ; longitudinally plicate, crossed by revolving 

 lines ; outer lip somewhat winged. L. 17, diam. 8 mill. 



Moluccas (WeinkaufF). 



Reeve's figure (fig. 18) is of a specimen not adult ; I add one 

 from Weinkauff (fig. 87), which scarcely looks like the same 

 species. 



D. BICANALIFERA, Sowb. PL 12, fig. 27. 



Shell with whorls concave and smooth above the periphery, 

 which is angulated, longitudinally ribbed below, ribs small, 

 granular, crossed by revolving striae; lip somewhat winged, with 

 a broad, rounded posterior sinus and a small anterior one ; light 

 yellowish brown. Length, '20 mill. 



Bay of Montija, W. Coast of Central America (Cuming). 



D. FLAVIDULA, Lam. PL 10, figs. 56, 57. 



Rather thin, turretecl, longitudinally obliquely ribbed, crossed 

 by revolving lines ; yellowish white to brown, the lighter-colored 

 specimens sometimes indistinctly broadly fasciated with brown. 



L. 65, diam. 20 mill. 



Red Sea, China, Japan. 

 D. zonata, Gray (fig. 57), is a synonym. 



D. JEFFREYSII, E. A. Smith. 



Subturreted ; whorls thirteen, concave above, convex below, 

 with oblique ribs and revolving lines ; luteous, with maculations 



and dots of purplish brown. L. 37, diam. 11 mill. 



Japan. 



Allied to D. flavidula, but has a shorter aperture, broader 

 cnnal, and distinct spiral striation upon the concave upper por- 

 tion of the whorls. Unfigured. 



D. LATISINUATA, E. A. Smith. 



Shell fusiform and turreted ; whorls twelve, excavated above, 

 carinated and angulated in the middle, below the angle obliquely 

 plicated ; yellowish brown, with white revolving lirse ; canal 

 moderately long, slightly curved. L. 50, diam. 35 mill. China. 



