240 A. E. Verrill— Mollusca of the New England Coast. 
are two additional ones, nearly as strong, around the periphery, 
and one or two faint ones on the subsutural band. On the last. 
whorl there are eight or nine revolving carinz below the shoulder, 
besides six or seven on the siphon. The longitudinal sculpture con- 
sists of numerous, rather narrow, angular, longitudinal ribs, which 
run nearly straight across the whorls, parallel with the lines of 
growth, which are rather conspicuous, distinctly raised and lamelli- 
form, covering both the ribs and their interspaces. The ribs in 
crossing the revolving carine form small, rounded or subconical 
nodules, of which those on the shoulder and on the sutural carina are 
the most prominent and most compressed. The ribs are continued 
across the subsutural band, on the lower whorls, in the form of thin, 
raised lamella, somewhat larger than the intervening lines of growth ; 
but on the upper whorls the ribs, across the entire breadth, are thin, 
lamelliform, and bent forward, rising in the form of small angles in 
crossing the revolving cinguli. The surface is covered by a closely 
adherent epidermis, which bears minute, sparsely scattered hairs, 
especially along the summits of the revolving cinguli. The nucleus 
is minute, regularly coiled, depressed, and largely covered by the 
succeeding whorl, The first or apical whorl is smooth and translu- 
cent, but on the second the normal sculpture is gradually developed. 
The aperture is rather broad-ovate, more than half the length of the 
shell. Columella is straight, with a strongly sinuous inner margin. 
The canal is rather short and broad, not constricted. The operculum 
is thin, yellowish white, translucent, ovate, somewhat pointed poste- 
riorly, and slightly truncated on the posterior part of the outer 
margin; the nucleus is at the extreme posterior tip. Color of the 
shell white, with a pale flesh-colored tint on the spire. 
Length, 75™™; breadth, 4°"; length of aperture, 5™™; its breadth, 
orneee 
Station 2038, N. lat. 38° 30’ 30”, W. long. 69° 08’ 25”, in 2033 
fathoms, one living specimen (No. 34,840). 
The generic relations of this shell are somewhat doubtful. In 
general appearance and sculpture it resembles certain species of Bela, 
but the character of the nucleus and the hairy epidermis, together 
with the character of the operculum, indicate that it belongs to or 
near Sipho. This is also indicated by the fact that there is no 
distinct sinus in the outer lip, nor are the lines of growth distinctly 
excurved in crossing the subsutural band. In size and shape the shell 
resembles Bela hebes and Gymnobela curta, var. angulata, from both 
of which it differs decidedly in sculpture. The specimen described 
may, however, be the young of a much larger species. 
