290 REPORT OF COMMISSIONER OF FISH AND FISHERIES [80] 



the outer ones of the arms, arranged in many crowded rows, some of 

 which extend beyond the club along the arm; in the middle (fig. 1 b) 

 there are usually one or two larger suckers (absent in our specimen), in 

 which the horny ring has a small aperture, and is developed into a large 

 hook-shaped claw on one side, and a complete circle of small plates sur- 

 rounds the horny ring. 



Pen thin and delicate, narrow anteriorly, with slender lateral ribs ; 

 posteriorly, for more than half the whole length, expanded into a thin 

 lanceolate form ; posterior tip laterally dilated, with the edges involute 



(fig. 1). 



A young specimen of this species, in nearly perfect preservation, was 

 recently presented to the United States Fish Commission by Capt. Will- 

 iam Demsey and crew of the schooner "Clara F. Friend." It was taken 

 from the stomach of a cod, off Seal Island, Nova Scotia. 



Greenland (Fabricius, Moller). Porsangerfjord, northern coast of Nor- 

 way (G. O. Sars). Cetost of Finmark, in stomach of "coal-fish," abun- 

 dant (G. O. Sars, Norwegian Exp. of 187S). 



D'Orbigny, Gray, and other writers have erroneously referred the 

 Onychoteuthis Fabricii (based on the Sepia loligo of Fabricius) to O. 

 BanTcsii. The detailed Latin description given by Fabricius applies 

 perfectly to the present species, and not at all to 0. BariksiL He de- 

 scribes the four rows of suckers on the short arms, the small suckers and 

 two large central hooks on the tentacles, the short caudal fin, etc. 



Family OaDIASTREPHID.E. 



Teuthidce (pari) D'Orbig., Cephal. Acc'tab., pp. xxxvii, 3v!~. 

 OnychoteuthidcB (pars) Gray, Catal. Brit. Mas., Moll., vol. i, p. 4."., 1849. 

 OmmaHrqphi&ce Gill, Arrangemenl Fam. Mollusks, p. 1. 1871. 

 Tryoii, Man. Conch., vol. i, p. 107, 1370. 



Body elongated, tapering to a point posteriorly, shorter and less acute 

 in the female, often very large (Architeuthis). Sessile and tentacular 

 arms without hooks, but provided with suckers, having denticulated 

 horny rings; tentacular arms with an expanded club, having four rows 

 of suckers on its middle portion, those in the two central rows larger; 

 proximal portion with or without smooth-ringed connective suckers and 

 tubercles; tip with a cluster of smooth-ringed suckers. Siphon in a deep 

 groove, attached by four bridles and strengthened by a median longi- 

 tudinal dorsal band, free in the middle; an internal valve. Eyes with a 

 round pupil ; lids free, with a distinct anterior sinus. Nuchal or audi- 

 tory crests consist of three longitudinal membranes on each side, united 

 by a transverse one in front. Connective cartilages of the mantle three ;. 

 the lateral ones in the form of a longitudinal ridge, with a smaller trans- 

 verse one across its posterior end ; corresponding cartilages on the siphon 

 long-triangular, with a longitudinal and a. transverse groove. Two ovi- 

 ducts. Hectocotylized arm of the male either the right or left ventral. 



Pen usually very narrow along the middle portion, and with three 



