A. EY Vervill— Mollusca of the New England Coast. 169 
The cinguli, which are very numerous on the lower whorls, are mostly 
thin, fine, and much elevated, but are rendered conspicuous by the 
close row of fine, sharp, epidermal hairs rising from each spiral line. 
The lines of growth are very numerous and close, thin, raised lamelle. 
The suture is not very oblique and a little impressed, and has a wavy 
or crenulated outline, due to the ribs, which extend to the suture, both 
above and below. The nucleus is rather small, composed of about 
two whorls. The apical whorl is very small, smooth, and regularly 
coiled, but only a little exposed; the second whorl shows traces of 
spiral lines. The outer lip is sharp, thin, regularly curved, and not 
very convex. The columella-lip is strongly excavated in the middle, 
and the columella-margin has a strong sigmoid curvature and a spiral 
twist. The canal is rather broad, moderately long, rather strongly 
bent to the left, and a little turned up at the end. The aperture is 
elongated-ovate, with the inner margin a little more convex than the 
outer. The operculum is long-ovate, rounded posteriorly, but with 
the anterior end narrowed and a little incurved on the inner mar- 
gin, near the anterior end, but somewhat dilated into a rounded lobe 
in the middle; the nucleus is situated on the inner margin, close to 
the anterior end. Epidermis distinct, finely hairy along the spiral 
lines, dull greenish yellow in color. In alcohol the shell is dull 
pinkish white, and the young specimens are more or less translucent. 
Length of one of the larger specimens, 25"; breadth, 14"; 
length of body-whorl and canal, 19°5™"; length of aperture, 15™™ ; 
its breadth, 5°5™™. 
Station 2115, N. latitude 35° 49’ 30”, W. longitude 74° 34’ 45”, in 
843 fathoms (No. 35,600). Many specimens, both young and adult, 
part of them living. 
Some of the specimens show considerable variation from the type 
described. Insome the spiral cinguli are larger, more prominent, and 
more unequal in size, three or more smaller ones being usually situated 
between the more prominent ones on the lower whorls. The suture 
in some cases is deeper and slightly channelled. 
This species is more nearly related to S. cwlatus, var. hebes, than 
to any other described species, but it is a larger, much stouter and 
coarser species, with the spiral sculpture more conspicuously developed, 
and with a distinctly hairy epidermis. The canal is longer and much 
more bent. The nucleus is larger and somewhat different in form. 
The typical form of S. cwlatus is still more slender, and has a deci- 
dedly higher and more regularly tapered spire, with the suture much 
more impressed. 
