5 
thè body whorl, between thè posterior edge of thè aperture and thè carina. 
The notch is deep.and about one-third of thè way from thè carina to thè suture. 
Aperture and canal long and narrow ; outer lips, before thè carina, effuse. Nu- 
cleus, white. Lon. 3.0 in.; lat. 1.0 in.; defl. 42°. 
Habitat : Nateekin Bay, Captain’s Bay, Unalashka ; one specimen, dead on 
beach. 
This speeies was at first supposed by me to be thè adult form of Drillia Ken. 
nicotlii, Dall, bnt on comparison, I find them distinct, as thè bitter has nearly 
as many whorls in less than a third of thè length, and thè carina is duplicated in 
thè last whorl. The latter cornea from thè Shumagins. The present speeies ia 
one of thè peculiar speeies which combine to form thè Aleutian fauna. 
