ISC, ARCH TTKl THIS. 



were destroyed by the captors, but were replaced by a taxider- 

 inist. wlio luis inserted two large, found, red eyes, close together 

 on tlu 1 top of the head! It agrees in general ai)pearance with 

 A. monachus, but the caudal tin is broader and less acutely 

 pointed ; it was '2 feet. ',) inches broad, when fresh, and broadly 

 sagittate in form. The rims of the large suckers -ire white, with 

 very acutely serrate margins, and the small, smooth rimmed 

 suckers, with their accompanying tubercles, are distantly scat- 

 tered along most of the face of the tentacular arms, the last 

 ones noticed being 19 feet from the tips. The sessile anus pre- 

 sent considerable disparity in length and size, the dorsal ones 

 being somewhat shorter and smaller than the others ; the serra- 

 tions are smaller on the inner edge than on the outer of the 

 suckers. 



A. TITAN, Steenstrup. PL 86, tig. 388. 



This is founded on an animal obtained in 1855, by Captain 

 Hygom, in N. lat. 31 c ; W. long. 76 J . It is one of the species 

 contained in a proof sheet of a paper intended to be published 

 in the Memoirs of the Copenhagen Academy, but which, for 

 some unknown reason, does not appear to have been issued. 

 Steenstrup furnished to Harting a drawing of the lower jaw of 

 this species, which the latter has published under the name o ( 

 A. dux, Steenstrup. A pen six feet long, and other important 

 portions of this specimen were secured. The lower jaw is a 

 little larger than that of A. monar/nitt. which it resembles; but 

 it is more rounded dorsally, less acute, and scarcely incurved, 

 the notch is narrow, and the alar tooth is not prominent . 



A. DUX, Steenstrup. 



As stated above, the only accessible figure of A. Titan is 

 that of a jaw published by Harting, undo- the name of A. dux. 

 I am not able to state whether this is an error of Harting's, or 

 whether Steenstrup has used two names for the same species or 

 specimen. Steenstrup (in his u Spoliu ") mentions having the 

 arm-hooks, and if these animals really had hooks, they will go 

 into the family Oirychoteuthidte instead of Ommastrephida 1 . 

 A. dux of most writers, however, = A. inonac/nis, as shown by 

 Prof. Verrill. 



