414 A. E. Verrill — MoUusca of the Nev^ England Coast. 



rated by intervals of about the same width ; these extend over [the 

 subsutural band, but are there a little less prominent ; on the convex 

 part of the wliorls they are wavy and irregularly decussated byTthe 

 lines of growth ; on the spire the two sets of lines produce a cancel- 

 lated structure. The aperture is short and rather [broad, "with an 

 acute angle posteriorly and a short, broad, straight canal in front ; 

 the columella is short, nearly straight, with the inner edge strongly 

 sinuous and obliquely cut away at the end. The inner lip is strongly 

 excavated at the base of the columella; the outer lip 'is regularly 

 curved, except above the shoulder, where it is slightly^ flattened "and 

 sloping; in the middle it projects considerably forward in a broad 

 curve, but the posterior sinus is broad, rather deep, well-rounded, and 

 deepest just above the shoulder. 



Color, grayish or yellowish white externally, blnish white within ; 

 in one specimen with a conspicuous reddish brown patch on the col- 

 umella margin. 



Length, 22'"™; greatest breadth, 10"''"; length of body- whorl, in 

 front, 15'""'; length of aperture, ll""" ; breadth of aperture, 5'"'". 



Two living specimens (No. 44,653), were taken at station 2,208, in 

 1,178 fathoms, N. lat. 39° 33'; W. long. 71° 16' 15". 



This species is named in honor of Mr. Herman Friele, the able 

 conchologist of the Norwegian Arctic expeditions. 



Pleurotomella vitrea Verriii, sp. nov. 



Plate XLIY, figure 6. 



Shell small, thin, delicate, translucent bluish white, rather stout, 

 fusiform, with angular whorls and an acute spire. Whorls four and 

 one-half, besides the nucleus, which is small, acute and consists of 

 about three chestnut-brown whorls. The whorls of the spire are 

 angulated and somewhat carinated at about the middle, where there 

 is a band of angular tubercles. The subsutural band is broad, slop 

 ing, flattened or sometimes distinctly concave, and occupies more 

 than half the breadth of the whorls. 



The sculpture consists of about twelve to fourteen oblique, some- 

 what angular and prominent transverse ribs, separated by broader, 

 concave intervals, rising at the shoulder into small angular tuber- 

 cles, on the subsutural band becoming much smaller and strongly 

 excurved in the middle, like the lines of growth, and rising into 

 small, sharp lamelUe just below the suture. The surface is also 

 covered with very distinct, raised, revolving cinguli, separated by 



