A. EF. Verrili—Cephalopods of the North Atlantic. 188 
in the latter the tooth or lobe is low and broad, and scarcely 
prominent, while the notch is narrow and shallow. This seems 
to be the best character for distinguishing the jaws of the two 
species. But they also differ in the angle between the alar 
edge and the cutting edge of the rostrum, especially of the 
lower jaw, for while in A. monachus this is hardly more than a 
right angle, in A. princeps it is about 110°. oreover, the 
darker color and firmer texture of the jaws of the latter seem 
to be characteristic. 
The proportions of the body seem to be quite different, if we 
can judge by the measurements given of the specimen (No. 1) 
which was found dead and floating at the surface of the water, 
at the Banks of Newfoundland, by Capt. Campbell, of the 
schooner B. D. Haskins, from Gloucester, Mass., in October, 
ference. The arms were badly mutilated, but the portions re- 
maining were estimated to be 9 or 10 feet long and about 22 
men of A. monachus, obtained at Jutland in 1853. 
same memoir, of which I have seen only the first part, there 
are references to a description and figures of A. Titan, obtaine 
in 1855, by Capt. Hygom, in N. lat. 31°, W. long. 76°. The 
latter specimen appears to be the same that Harting + men 
tioned, under the name of “ Architeuthis dux Steenstrup,” as 
collected at the same time and place, and of which he pub- 
* See the American Naturalist, vol. vii, p. 91, Feb., 1873. 
+ In a paper of which I have only seen some proof-sheets, given by him to Dr. 
Packard, entitled “ Spolia Atlantica.” Whether this memoir has been published I 
do not know. The plate (1) that I have seen is marked “ Vid. Selsk. Skrifter, V. 
kke, naturv. og mathem. Afd. iv Bind;” and there are references to 
other plates illustrating A. Titan, etc. 
_ + Description de quelques fragments de deux Céphalopodes gigantesques. Pub- 
ae par Académie Royale des Sciences 4 Amsterdam. 1860. 4to, with three 
plates. 
