240 A, EF. Verrill—North American Cephalopods. 
species of this genus, can be cleared up by Professor Steenstrup, even 
if additional specimens should not be obtained. 
The publication of Professor Steenstrup’s detailed memoir upon 
this genus would give great pleasure and satisfaction to all students 
of this class of animals. His thorough knowledge of the group, and 
his numerous and important investigations of the Cephalopods, pub- 
lished during many years, will give especial value to his conclusions. 
Harting, in the important memoir referred to, describes specimens 
of two species, both of which are apparently distinct from all the 
Newfoundland specimens enumerated by me. 
The first of these (his Plate I) is represented by the jaws and 
buceal mass, with the lingual dentition, and some detached suckers, 
preserved in the museum of the University of Utrecht, but from an 
unknown locality. These parts are well figured and described, and 
were referred to Architeuthis dux by Harting. The form of the 
lower jaw (see Pl. XXV, fig. 1) is unlike that of A. dux, for the beak 
is very acute, the cutting edge is concave, the notch shallow and broad, 
and the alar tooth is somewhat prominent. The size is about. the 
same as our No. 5. The suckers (PL XXV, fig. 1a, 16) are from the 
sessile arms, and agree pretty nearly with those of A. Harveyi. The 
edge is strengthened by an oblique, strongly denticulated ring, which, 
in all the suckers figured, including both larger and smaller ones 
from the short arms, has regular, acute, sub-equal denticles all around 
the circumference, in this respect agreeing with A. Harveyi. The 
internal diameter of the largest of these suckers is ‘75 of an inch; 
the external, 1:05 inches. They were furnished with slender pedicels, 
attached obliquely on one side. The lingual teeth (see Plate XVI, 
fig. 8, copied from Harting) are in seven regular rows, and resemble 
closely those of Loligo. On that account mainly, in a former paper, 
I proposed to designate it by the name of Loligo Hartingii. But 
since that time I have been able to study the dentition of species of 
Architeuthis and Sthenoteuthis, and now refer Harting’s species to 
Architeuthis without hesitation, although the dentition is poorly 
figured. Professor Steenstrup, in a letter to me, subsequent to the 
publication of my former papers, also expressed the opinion that 
Harting’s specimen belongs to A. monachus. I distinct, however, 
as is possible, it may be called Architeuthis Hartingi. 
The other species described by Harting was from the Indian 
Ocean, and belongs to the genus Hnoploteuthis. 
In this genus there are large, sharp, curved claws (Pl. XXV, figs, 
4, 4a), both on the club of the tentacular-arms and on the sessile arms, 
