ino A. E. Verrill — MoUiisea of the New Eiigland Coast. 



band, which are closer together than the others, are excurved in the 

 middle, bending abruptly forward to join the shoulder-carina, which 

 they do not cross, nor do they form prominences on the sutural 

 carina; those of the peripheral band curve in the opposite direction, 

 their convex side being toward the aperture. In the narrower 

 spaces between the outer basal cinguli similar riblets are also 

 present, but are here oblique, iiner, and less distinct; the spaces 

 between the carinae are also marked by fine, raised spiral lines, visi- 

 ble with a lens, which do not interrupt the riblets; often some of 

 these, near the median carina, are larger than the rest. The apical 

 whorl is a little prominent, small, regular, smooth and glassy. The 

 suture often appears slightly channeled, when the sutural carina is a 

 little removed from it, owing to the fact that the peripheral carina of 

 the previous whorl is nearly coincident with the suture. The carina 

 defining the shoulder often appears double or grooved at its summit, 

 on the last whorl. The umbilicus is narrow, but deep and spirally 

 twisted, being more or less encroached upon by the incurved colu- 

 mella-edge. The aperture is irregularly angulated and somewhat 

 three-lobed, with two distinct, somewhat j^roduced, narrow sinuses 

 in front ; a deep., rather wide notch or posterior sinus corresponding 

 to the subsutural band ; and a strongly excavated, rounded sinus at 

 the base of the columella. The outer lip is thin, sharp, angulated at 

 the terminations of the carinae, and projects strongly forward at the 

 periphery and bends outward in the form of two very short, rather 

 narrow, rounded canals anteriorly. These are nearly equal in size, 

 the outermost corresponding to a slight convex ridge on the outer 

 part of the base, the inner one corresponding to the termination of 

 the columella-margin ; the latter projects forward as a rudimentary 

 canal. The columella-margin is short, somewhat thickened, very 

 strongly spirally curved, and much excurved near its junction with 

 the body-whorl, opposite the umbilicus, beyond which it bears a 

 small, slightly prominent, obtuse tooth. Color translucent white, 

 with a pearly luster or iridescence in fresh specimens. Operculum 

 thin, pale yellowish horn-color. 



Length, 4-5™"' ; breadth, 3""" ; length of body-whorl and aperture, 

 3'"'"; breadth of aperture, i-7™m 



One living specimen from station 2038, N. lat. 38* 30' 30", W. 

 long. CO" 08' 25", in 2033 fathoms (No. 38,092), the figured type ; 

 four specimens from station 2084, K lat. 40° iC 50", W. long. 67" 

 05' 15", in 1290 fathoms (No. 38,249), one living ; station 2043, in 

 1467 fathoms, one dead (No. 38,269). 



