a 
DRILLIA. 205 
D. varicosa, Reeve. Pl. 12, fig. 17. 
Whorls smooth near the suture, longitudinally ribbed below, 
‘with large rude scattered varices, sinus broad and rather deep; 
ribs grayish on a darker surface, sometimes entirely brown. 
Length, 1 inch. 
Philippines, Australia. 
Notwithstanding some differences in the descriptions, I think it 
probable that this species is identical with D. Japonica, Lischke; 
if so, the latter name will become a synonym. 
D. ALBIcosTATA, Sowb. PI. 13, fig. 57. 
Rose-colored, the longitudinal ribs white, close-set, no spiral 
sculpture ; aperture callous above; sinus rather deep. 
Length, 22 mill. 
Galapagos Islands. 
D. Sotomonensts, E. A. Smith. PI. 12, fig. 23. 
Differs from D. varicosa in being narrower, with angulated 
ribs, longer and narrower aperture and canal, and in color, 
having dark brown stripes between the ribs, and a series of 
brown spots on an infrasutural keel. Length, 23 mill. 
Solomon’s Isles (Brazier). 
Sometimes slightly varicose. 
D. pyRAMIDATA, Kiener. PI. 12, fig. 34; Pl. 13, fig. 67. 
Shell Cerithiiform, strongly corded on the periphery, smooth 
above it, except a narrow granulated sutural band, below with 
oblique slight ribs and revolving striz ; chocolate, the peripheral 
and sutural nodes whitish ; interior chocolate, with a white band. 
Length, 1 inch. 
W. Africa. 
D. opetiscus, Reeve. PI. 12, fig. 21. 
- Shell stouter than the preceding species, lower portion of the 
last whorl granosely ridged; canal short; sinus large ; whitish, 
covered with a yellowish olive epidermis. Length, 1 inch. 
Habitat unknown. 
I have not seen this species. 
D. Wiimeri, E. A. Smith. Pl. 12, fig. 24. 
Sharply keeled and noduled on the periphery, with revolving 
striz below it, stronger towards the base; whitish, stained with 
