156 ^-1. E. VerriJl — Molhisca of the New England Coast. 



but not very convex, with a distinct, flattened, smooth siib8utuial 

 band. Suture well marked, but not deep, decidedly oblique. Sur- 

 face everywhere covered with conspicuous, regular, raised, revolving 

 cinguli, in some j^arts with one or more smaller revolving lines in the 

 spaces between them. The cinguli are obtusely rounded and entirely 

 smooth, as well as the spaces between them, which are of about the 

 same breadth ; on the penultimate wliorl there are about fifteen cin- 

 guli, and on the upper whorls five or six. 



The large, acute, brown nucleus consists of about four and a half 

 whorls, which increase rfgularly ; the apical whorl is small, rounded 

 and prominent ; the others are distinctly carinated and shouldered ; 

 the portion above the shoulder slopes at a wide angle and is a little 

 convex and nearly smooth, excej)t close to the carina ; the part below 

 the carina of the shoulder is flattened and nearly straight, or even 

 narrowed toward the suture, and crossed by regularly spaced, thin, 

 elevated transverse ribs, with wider intervals; these ribs extend a 

 little above the carina and then fade out; they run nearly straight 

 across all the whorls, except the first two, where they are more or 

 less oblique; there is usually, on the larger whorls, a raised revolving 

 line, or small carina, just above the suture. 



The aperture is very elongated and narrowed at the base of the 

 canal, which is much prolonged and slender, a little curved, owing to 

 a slight sinuous curvature of the columella-margin. The posterior 

 notch in the outer lip is rather deep and narrow, situated immediately 

 at the suture. The subsutural band, corresponding to it, shows faint 

 cm'ved lines of growth, parallel with its margin. Color white, except 

 the nucleus, which is pale chestnut-brown. 



Length of one of the largest specimens, 23'"'"; breadth, e-o"^'" ; 

 height of spire, 11"^'"; length of aperture and canal, ll'o"""; breadth 

 of aperture, 3'^>'". 



Living specimens at station 2038, N. latitude 38° 30' 30", W. long- 

 itude 69° 08' 25", in 2033 fathoms (No. 34,845); station 2041, N. 

 latitude 39° 22' 50", W. longitude 68° 25', in 1608 fathoms (Xo. 

 37,871); station 2084, N. latitude 40° 16' 50", W. longitude 67° 05' 

 15", in 1290 fathoms (Xo. 37,846) ; and at 2115, N. latitude 35° 49' 

 30", W. longitude 74° 34' 45", in 843 fathoms (No. 35,597). Alba- 

 tross, 1883. 



This elegant species is dedicated to Miss Katharine J. Bush, who 

 has, for several years, acted as assistant in the working up of the 

 large collections of mollusca, dredged by the U. S. Fish Commission, 



