178 A, FE. Verrill—Mollusca of the New England Coast. 
rounded, strongly convex, the last whorl occupying more than one- 
half the length of the shell. Suture deep, well impressed, the whorls 
rising abruptly from the suture produce a well rounded shoulder. 
Aperture broadly ovate; outer lip thin, sharp, with a nearly evenly 
rounded outline, the edge receding a little at the shoulder and 
slightly everted near its junction with the whorl; inner lip continued 
as a thin lustrous coat of white enamel on the previous whorl, becom- 
ing raised, sharp, and slightly sinuous in the umbilical region, and 
turning outward so as to nearly conceal a narrow umbilical chink. 
Columella short, not much thickened, with a slight sigmoid curva- 
ture. Canal very short, and wide, scarcely projecting beyond the 
margin of the outer lip, with which it is directly continuous. 
Sculpture consists of numerous small, but very distinct, elevated, 
spiral cinguli, somewhat unequal in size, but rather evenly spaced, 
and separated by much wider concave interspaces (about 1™™ broad), 
crossed by rather conspicuous and regular, raised lines of growth, 
which also cross the ribs. There is no indication of longitudinal 
ribs. Epidermis distinct, thin, brownish yellow, not hairy. The 
apical whorls are eroded. Operculum spiral, large, thin, ovate, in- 
equilateral; the outer edge evenly rounded; the inner edge not so 
strongly convex and slightly sinuous posteriorly ; the anterior edge 
slightly emarginate, where the spiral portion turns inward. The 
anterior portion shows a distinct spiral whorl, having its center a 
little distance from the anterior border, and the lines are curved 
radially from the center. . 
Color of the shell white and translucent beneath the yellowish 
epidermis. The operculum is horn-color, translucent. 
The only specimen in the collection is a female. The tentacles 
are large, broad, stout, rapidly tapering to the acuminate tips. No 
eyes can be detected in the preserved specimen. 
Length, 45""; breadth, 35"™; length of spire, 18""; length of 
aperture, 37™™; its breadth, 18™"; length of operculum, 19"; 
breadth, 14™™. 
Station 2098, N. lat. 37°-40' 30”, W. long. 70° 37’ 30", in 2221 
fathoms, one living specimen (No. 35,273), and station 2105, N. lat. 
° 50”, W. long. 73° 03' 50", in 1395 fathoms, one dead specimen 
(No. 35,364). 
Trichotropis inflata Friele. 
Catalog norweg. Nordmeer-exp. Spitzbergen gefund. Mollusken, p. 275, 1879. 
Shell small, ovate, with the last whorl large and somewhat ventri- 
cose, spire small, turreted, with a rather acute apex and a strongly 
