A. E. Vei'rUl — Molh(s<;a of the Nexc England Goast. 161 



by rather close, shallow furrows. On the last whorl the ribs extend 

 to the base of the canal before they fade out, and the spiral sculpture 

 becomes coarser and a little more evident on its anterior part and on 

 the canal. The surface is also a little roughened by faint lines of 

 growth, parallel with the ribs. Aperture oblong-ovate, rather nar- 

 row ; outer lip sharp, thin, projecting forward in the middle in a 

 broadly rounded curve, and slightly receding just above the shoulder, 

 so as to form a broad and shallow sinus a little removed from the 

 suture. Canal nearly straight, a little prolonged, distinctly constricted 

 at its base by the incurvature of the outer lip. Columella straight, 

 tapering anteriorly, its inner edge forming a well-marked sigmoid 

 curve. Epidermis indistinct. Color translucent bluish white. The 

 surface is not glossy, but the texture is more vitreous and delicate 

 than in the more northern and shallow-water species of BeJa. 



Off Cape Hatteras, station 2115, N. latitude 35° 49' 30", W. longi. 

 tude 74° 34' 45", in 843 fathoms (No. 35,601, twenty-five living and 

 dead). Steamer Albatross, 1883. 



Length of one of the larger specimens, 13*5™"; breadth, 6"""; 

 length of body-whorl and canal, 9™™ ; length of aperture, 7""" ; its 

 breadth, 2 •5'""'. Among the specimens collected there is some varia- 

 tion in portions ; some individuals having the body-whorl relatively 

 large, with the aperture broader and more ovate than in the specimen 

 measured. 



This species, in form and genex'al appearance, bears some resem- 

 blance to B. pleurotoniaria^ but it is a thinner and more delicate 

 shell, with a translucency not seen in the latter. The whorls are 

 also more convex, the last more ventricose. The ribs are thinner, 

 less numerous, and more strongly recurved below the suture ; the 

 spiral sculpture is not so strongly marked, and the nucleus is lai-ger, 

 with much finer spiral sculpture. The aperture and canal are similar 

 in the two species, but somewhat narrower in B. pleurotomaria. 



Bela SUbturgida Verrill, sp. nov. 



Shell of moderate size, white, translucent, stout-fusiform, with swol- 

 len, angulated whorls, and a distinctly turreted, rapidly tapering 

 spire, the sculpture consisting of rather distant ribs and much finer 

 spiral cinguli. 



The largest specimen, w^hich is probably immature, has four whorls 

 below the nucleus. The three upper whorls are abruptly angularly 

 shouldered, the portion forming the subsuLural band rising nearly at 

 right angles to the shoulder, below which the whorls are flattened 



