508 
A. E. VerrUl — Catalogue of Marine Mollusca. 
white. Nucleus moderately large, not swollen, apical whorl turned 
up and incurved. Operculum narrow, long-ovate. Length of a shell 
(?), 39 mra ; breadth, 18 mm ; length of body-whorl, 26 mm ; length of 
aperture, 19 mm ; breadth, 7 mm . 
The largest example, from Metis, is 57 mm long ; breadth, 26 ' nm ; 
length of body-whorl, 37 mm ; breadth, 22 mm ; length of aperture, 29 mm ; 
breadth, 1 3 mm . 
In the form of the spire and in the sculpture this species resembles 
S. Sj)itzbergen*is, but in the latter the spiral grooves are fewer and 
much coarser, as figured by Reeve; the outer lip is more expanded; 
and the columella and canal are more curved. S. terebralis Gould, 
from the Arctic Ocean, north of Bering’s Sti’aits, may be the same as 
S. Spitzbergensis , and in that case the latter name has priority. 
JSipho Islandicus (Chernn.) Morch. 
Fusus ( Si2)ho ) Islandicus Morch {non Fusus Islandicus Loven, nec Gould). 
Sipho Islandicus G. 0. Sars, Moll. Reg. -Arctic® Norvegiae, p. 270, pi. 15, fig. 3! 
pi. x, fig. 19 (dentitioa) ; pi. xviii, fig. 55 (operculum). 
This has been recorded from the Gulf of St. Lawrence, 212 fath- 
oms, by Whiteaves. Greenland; Iceland; Spitzbergen; Lapland; 
Norway. Lofoten to Vadso, 50 to 100 fathoms, — Sars. British 
coast, 30 to 300 fathoms, — Jeffreys. I have seen no genuine exam- 
ples from America. 
From the Grand Bank (Gloucester fisheries, lot 620), I have a 
single specimen with the canal broken, but with the animal (?) in 
alcohol, which resembles the true 8. Islandicus , but the nucleus 
seems to have been small and the operculum is different. 
The spire is high, with an acute apex, but with the nucleus, which 
appears to have been small and regular, somewhat eroded and 
broken. Whorls eight, flattened below the suture, rounded in the 
middle. Suture shallow, slightly impressed, very narrowly chan- 
neled. Sculpture rather coarse, strong, flat, spiral cinguli, separated 
by impressed grooves, which are narrower than the cinguli on the 
lower whorls, but of about the same width on the 5th and 6th whorls, 
on which there are about ten cinguli, becoming obsolete on the sub- 
sutural band; on the body-whorl the cinguli become broad and flat, 
separated by narrower, shallow grooves; they are made wavy by 
the lines of growth. Aperture broad-elliptical; outer lip broadly 
rounded and somewhat expanded in the middle, with the edge reced- 
ing or concave; columella-lip regularly arched in the middle, not ex- 
cavated ; columella slightly sigmoid, and rather slender, so far as 
