240 A. E. Verrill — North Ainericaii 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 Cei)halopods, 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 ap])arently distinct from all the 

 Newfoundland specimens enumerated by me. 



The first of these (his Plate I) is represented by the jaws and 

 buccal mass, with the lingual dentition, and some detached suckers, 

 preserved in the museum of the University of Utrecht, ))ut fi'om an 

 unknown locality. These parts are well figured and described, and 

 were i*eferred to Arehitexithis dux by Harting. The foi-m of the 

 lower jaw (see PI. XXV, fig. 1) is unlike that of A. dux, for the beak 

 is very acute, the cutting edge is concave, the notch shallosv and broad, 

 and the alar tooth is somewhat prominent. The size is about the 

 same as our No. 5. The suckers (PI, XXV, fig. la, Ih) are from the 

 sessile arms, and agree pretty nearly with those of ^. Harney i. 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 maiidy, in a former paper, 

 I proposed to designate it by the name of Lohgo Hartingii. But 

 since that time I have been able to study the dentition of species of 

 Architeuthis and Sthenoteii^his, and now refer Harting's species to 

 Architeuthis without hesitation, although the dentition is poorly 

 fio-ured. 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. If distinct, however, 

 as is possible, it may be called Architeuthis Harthufii. 



The other species described by Harting was from the Indian 

 Ocean, and belongs to the genus Eaoploteutldx. 



In this genus there are large, sharp, curved claws (PI. XXV, figs_ 

 4, 4a), both on the club of the tentacular-arms and on the sessile arms, 



