DRILLIA. 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. caAsTANEA, Reeve. PI. 12, fig. 18; Pl. 34, fig. 87. 
Chestnut-brown ; longitudinally plicate, crossed by revolving 
lines; outer lip somewhat winged. LL. 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. PI. 12, fig. 27. 
Shell with whorls concave and smooth above the periphery, 
which is angulated, longitudinally ribbed below, ribs small, 
granular, crossed by revolving striz; 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). 
PD. FLAVIDULA, Lam. PI. 10, figs. 56, 57. 
Rather thin, turreted, 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. Jerrreysi, E. A. Smith. 
Subturreted ; whorls thirteen, concave above, convex below, 
with oblique ribs and revolving lines; luteous, with maculations 
and dots of purplish brown. lL. 37, diam. 11 mill. 
Japan. 
Allied to D. flavidula, but has a shorter aperture, broader 
canal, and distinct spiral striation upon the concave upper por- 
tion of the whorls. Unfigured. 
D. tatisinuata, 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 lire; canal 
moderately long, slightly curved. L. 50,diam. 35 mill. China. 
