304 
A. E Verrill — North American Cephalopods. 
the anterior end, it gradually expands laterally into a broad, very 
thin, lanceolate form, becoming, opposite the broadest part of the 
fin, 30 mm wide, with very delicate lateral expansions and with a 
pretty strong dorsal keel ; farther back it tapers and is very acumi- 
nate, the lateral margins becoming involute, so as to form a very 
long, slender, acute, terminal, hollow cone, extending to the tip of 
the tail. The anterior end is obtusely rounded and thin ; a short dis- 
tance from the anterior end there are two thin lateral processes, 
directed forward, to which the commissural muscles were attached. 
Color of entire body, siphon, and caudal fin, dark brown, thickly 
covered with large roundish unequal spots of darker brown, and 
paler brown, intermixed; head, eyes, arms, and web, dark brownish 
purple, with crowded chomatophores ; suckers yellowish. 
Total length, to end of latex*al arms, 16 inches ; to dorsal edge of 
mantle, 13 ; length of head, 1 ; diameter of eye, 1 ; length of caudal 
fin, 5 ; its breadth, T80 inches.* 
Measurements in millimeters. 
Length to tip of lateral arms.. 
Length to base of arms. 
Length to edge of mantle, above, 
Length of caudal fin, 
Breadth of caudal fin, 
Diameter of body, 
Diameter of eye, 
Length of 3d pair of arms, 
Length of ventral arms, 
Diameter of largest suckers of lateral arms, 
Length of pen, 
Of anterior linear portion, 
Of posterior lanceolate part, 
Breadth of anterior portion, 
Breadth of lanceolate part, .. 
40 
B. 
410 
354 
330 
210 
127 
103 
46 
18 
57 

25 
26 
66 
63 
52 
38 
3 
5 
330 
180 
.. 
150 
_ _ 
3 
30 
-- 
A. is the specimen described above ; B. is the specimen described by Steenstrup 
from Greenland. The latter had the dorsal arms 40 mm long ; 2d pair 50 mm ; tentacular 
arms 68 and 70 mm respectively. The larger size of the suckers of the latter may 
indicate that it was a male. 
Our specimen was taken near the northern edge of the Gulf 
Stream, W. long. 55°, by Thomas Lee, of the schooner “Wm. II. 
Oaks,” Jan., 1879, and by him presented to the U. S. Fish Commis- 
sion. Baffin’s Bay, Northern Greenland (Steenstrup). 
* Some of these measurements are slightly larger than those originally given. 
This is due to the fact that the specimen has been kept, since first received, in some- 
what weaker alcohol, and has become more relaxed in consequence of this, combined 
with repeated handling. 
