150 A, E. Verrill— Mollusca of the New England Coast. 
guli, which form as many rows of small acute nodules in crossing the 
ribs; these are similar to those on the carina of the shoulder, but 
usually a little smaller. There is commonly another row of smaller 
tubercles of the same kind just above the shoulder. On the last 
whorl there are from fifteen to eighteen cinguli, which are unequal in 
size and decrease in prominence from the carina to the base of the 
canal; most of these torm small, sharp nodules in crossing the ribs. 
The ribs are a little prominent, rather oblique, sharp at summit, 
and separated by concave interspaces of somewhat greater width ; 
oun the upper whorls they run from just above the shoulder forward 
to the suture ; on the body-whorl they curve strongly forward in the 
middle and then recede and disappear before reaching the base of the 
canal. The subsutural band is very wide, strongly sloping, and 
somewhat concave just above the shoulder; it is covered with numer- 
ous, rather conspicuous, thin, raised riblets, which are strongly ex- 
curved in the middle and bend forward before reaching the suture. 
Two or sometimes three cinguli exist on the subsutural band; the 
uppermost of these is just below the suture and forms there a small 
carina, above which the suture is distinctly channeled. The surface 
between the ribs is everywhere covered by fine, distinct, flexuous 
lines of growth. The aperture is long-ovate, rather narrow, angu- 
lated externally ; the outer lip is thin and sharp, with a broad, rounged 
posterior sinus, just above the shoulder and a little removed from the 
suture; below the shoulder the lip arches forward in a broad curve, 
and becomes incurved at the base of the canal, which is rather con- 
tracted and a little bent to the right and slightly everted at tip. 
Columella short and nearly straight, its inner edge forming a strong 
sigmoid curvature. Kpidermis indistinct. Color white, with the 
exception of the light yellowish brown nucleus. 
Length of one of the larger specimens, 6°5™" ; breadth, 3°5™™ ; 
length of body-whorl and canal, 4"; length of aperture, 3™™; its 
breadth, 1°25™™. 
Station 2038, N. latitude 38° 30’ 30”, W. longitude 69° 08’ 25”, 
in 2033 fathoms, living, (No. 34,841) ; Station 2043, N. latitude 
39° 49’, W. longitude 68° 28’ 30”, in 1467 fathoms, (No. 34,851); and 
station 2084, N. latitude 40° 16’ 50”, W. longitude 67° 05’ 15”, in 
1290 fathoms, living, (No. 38,315). Albatross, 1883. The best speci- 
mens occurred at the last named station, in 1290 fathoms. 
This species bears considerable resemblance to several others of 
the same group, but differs very decidedly from all the rest in the 
character of the nucleus, which is remarkable for its relatively large 
