178 A. K Verrill — Mollusca of the Neio England Coast. 



rounded, strongly convex, the last wliorl 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 (aboiit 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 eraarginate, 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 tlie lines are curved 

 radially from the center. 



Color of the shell white and translucent beneath the yellowish 

 epidermis. The operculuni 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. 

 37° 50", W. long. 73" 03' 50", in 1395 fathoms, one dead specimen 

 (No. 35,364). 



Trichotropis inflata Krioie. 



Catalog;- ijorweg. Nurdiueer-exp. Si)ilzl)0if>'Oii fiul'iiud. Mollnsken, p. 275, 1871). 

 Shell ;sniall, ovate, witli llie last wlioil large and sunu'wiiat viMitri- 

 cose, spire small, turreted, with a rather acute apex antl a strongly 



