A. EL Verrill— Mollusca of the New England Coast. 161 
by rather close, shallow furrows. On the last whorl the ribs extend 
to the base of the canal before they fade out, and the spiral sculpture 
becomes coarser and a little more evident on its anterior part and on 
the canal. The surface is also a little roughened by faint lines of 
growth, parallel with the ribs. Aperture oblong-ovate, rather nar- 
row; outer lip sharp, thin, projecting forward in the middle in a 
broadly rounded curve, and slightly receding just above the shoulder, 
so as to form a broad and shallow sinus a little removed from the 
suture. Canal nearly straight, a little prolonged, distinctly constricted 
at its base by the incurvature of the outer lip. Columella straight, 
tapering anteriorly, its inner edge forming a well-marked sigmoid 
eurve. Epidermis indistinct. Color translucent bluish white. The 
surface is not glossy, but the texture is more vitreous and delicate 
than in the more northern and shallow-water species of Bela. 
Off Cape Hatteras, station 2115, N. latitude 35° 49’ 30”, W. longi- 
tude 74° 34’ 45”, in 843 fathoms (No. 35,601, twenty-five living and 
dead). Steamer Albatross, 1883. 
Length of one of the larger specimens, 13°57"; breadth, 6™™ ; 
length of body-whorl and canal, 9"; length of aperture, 7™™ ; its 
breadth, 25™". Among the specimens collected there is some varia- 
tion in portions ; some individuals having the body-whorl relatively 
large, with the aperture broader and more ovate than in the specimen 
measured. 
This species, in form and general appearance, bears some resem- 
blance to B. pleurotomaria, but it is a thinner and more delicate 
shell, with a translucency not seen in the latter. The whorls are 
also more convex, the last more ventricose. The ribs are thinner, 
less numerous, and more strongly recurved below the suture; the 
spiral sculpture is not so strongly marked, and the nucleus is larger, 
with much finer spiral sculpture. The aperture and canal are similar 
in the two species, but somewhat narrower in B. pleurotomaria. 
Bela subturgida Verrill, sp. nov. 
Shell of moderate size, white, translucent, stout-fusiform, with swol- 
len, angulated whorls, and a distinctly turreted, rapidly tapering 
spire, the sculpture consisting of rather distant ribs and much finer 
spiral cinguli. 
The largest specimen, which is probably immature, has four whorls 
below the nucleus. The three upper whorls are abruptly angularly 
shouldered, the portion forming the subsutural band rising nearly at 
right angles to the shoulder, below which the whorls are flattened 
