A, EF. Verrill—Cutalogue of Marine Mollusca. 485 

tusely shouldered whorls, and is especially distinguished by its few 
broad and strong, nearly straight ribs, crossed by rather distant 
revolving grooves, giving it a coarsely cancellated, or tessellated, 
surface. The uncini differ decidedly from those of B. cancellata. 
This species has not yet been found on the New England coast. I 
have a specimen from Labrador, in poor condition, that may be iden- 
tical, but it is doubtful. 
Tromso, 10 to 12 fathoms,—G,. O. Sars. 
The three following species are still doubtful: 
Bela rosea Sars. Z 
? Defrancia Woodiana Mller, Ind. Moll. Grénl., Kroyer’s Tidss., iv, p. 86, 1842. 
Pleurotoma rosea M. Sars. 
Bela harpularia G. O. Sars, Moll. Reg. Arcticee Norvegiz, p. 234, pl. 16, fig. 17, pl. 
ix, fig. 3 a—c (dentition), 1878-(non Conthouy). 
Bela harpularia, var. rosea G. O. Sars, op. ult. cit., p. 234, pl. 23, fig 10. 
The shells that I refer to this species agree well with the figures 
and description by G. O. Sars. They resemble B. harpularia, but I 
think them clearly distinct. In this species the aperture is narrower ; 
the straight canal is narrower and longer; the columella is more 
flattened; and the whorls are more distinctly and decidedly shoul- 
dered than in B. harpularia. The shoulder is, in fact, usually angu- 
larly carinated, and rendered more or less nodulous by the prominent 
ribs, which are fewer, and less rounded and thickened along the edge, 
their intervals being rather wide and concave; in crossing the sub- 
sutural band the ribs are smaller and excurved, though nearly 
straight below the shoulder. The spiral cinguli are coarser and less 
numerous than in 6. harpularia. The spire is more acute at tip, the 
first nuclear whorls being small and prominent ; the second turn has 
two prominent carine ; the third has about three spiral carine crossed 
by small riblets. The posterior sinus of the lip is well-marked. The 
color is usually pink or pinkish-white. One of the larger specimens 
is 12™™ long; breadth, 5-5"; length of body-whorl, 8°"; of aper- 
ture, 6™"; breadth of aperture, 2™™. 
Halifax harbor, 15 to 25 tathoms; off Halifax, 9 miles, 57 fathoms,— 
U.S. Fish Com., 1877. 
Bela elegans (M6li.). 
Defrancia elegans Moller, Kroyer’s Tidss., iv, p. 86, 1842. 
Plewrotoma elegans Jeffreys, Ann. and Mag. Nat. Hist., April, 1876, p. 331 (non 
Donovan, nec By., nec Brown, nec Scacchi). 
Bela elegans G. O. Sars, Moll, Arcticz Norvegiz, p. 225, pl. 16, fig. 15, pl. viii, fig. 
12 (dentition). 
