DRILLIA. 183 
D. CANCELLATA, Carpenter. 
Shell like a young incisa in form, the spire decorticated, four 
planate whorls remaining, suture distinct, with about twenty 
small longitudinal ribs crossed by close revolving striz, cancel- 
lating the surface, and sometimes the intersections subnodulous. 
— Puget’s Sound. 
Two specimens found. I an not acquainted with the species; 
it has not been figured. 
D. EBUBNEA, Carpenter. 
Shell turreted, pinkish white, rather thin, smooth, shining; 
spire decollated ; nine normal whorls remaining, planate above, 
appressed above the sutures and medianly concave, with here 
and there obsolete irregular longitudinal ribs, base prolonged, 
with a conspicuous, open canal. L. 1°3, diam. *45 mill. 
Near Gulf of California. 
Easily recognized by its smooth, glossy aspect and French- 
white color; the notch lying along a broad spiral channel, which 
throws the junction of the whorl as it were up the suture. Un- 
figured and unknown to me. 
D. m@sta, Carpenter. Pl. 12, fig. 38. 
Shell dark brown under an olivaceous epidermis, with about 
ten curved longitudinal ribs, obsoletely nodulous on the 
periphery, with the whorls usually slightly constricted above it, 
ribs generally obsolete on the body-whorl of adult specimens; 
suture narrowly corded, noduled and spotted; aperture choco- 
late within. L. 30, diam. 10 mill. 
Southern California, Lower California. 
D. Torosa, Carpenter. Pl. 14, fig. 93. 
Whorls with angulated shoulder bearing nodulous termina- 
tions of about ten short oblique ribs, no spiral sculpture; burnt- 
brown, under an olivaceous epidermis ; nodules whitish, aperture 
brown. L. °95, diam. ‘3 inch. 
Southern California. 
Var. AURANTIA, Carpenter. 
Shell orange-colored, sometimes spirally striate. 
L. *6, diam. °28 inch. 
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