316 REPORT OF COMMISSIONER OF FISH AND FISHERIES. [106] 



other two. At the very tip of the club there is a round cluster of small, 

 smooth suckers, as in ArcMteuthis. The buccal mass is 52 mm in length 

 and 42 mm in diameter. A thick buccal membrane, covered with low, ir- 

 regular verrucas, surrounds the jaws. The jaws are sharp and strong; 

 their exposed portions are black, the alse reddish brown. The beak of 

 the upper jaw is long, strongly incurved, acute, its cutting edge regu- 

 larly curved, with a deep notch at its base, from which a well-defined 

 groove runs downward. The lower jaw is sharp, its cutting edge is 

 most concave near the tip, below which it is nearly straight; sides 

 covered with fine radiating lines; basal notch broad, shallow, angular; 

 beyond the notch there is a broad, low, angular tooth. The surface of 

 the fleshy palate is covered with low, rounded verrucse. The odonto- 

 phore is broad, with sharp, pale amber-colored teeth, which agree well 

 with those of the original specimen (Plate XVI, figs. 3-7); outside 

 of the lateral teeth there is a narrow, raised, chitinous ridge, apparently 

 not divisible into plates. 



Another specimen, consisting of the buccal mass and jaws, but with- 

 out the odontophore, was presented to the United States Fish Commis- 

 sion (lot 797) by Capt. Charles Anderson and crew of the schooner 

 " Alice G-. Wunson," of Gloucester, Mass. 



The jaws of this were slightly larger than in the one just described. 



They agree well in nearly every respect, but the notch at the base of 



the lower mandible is narrower and the tooth beyond it broad and 



rounded. 



Measurements of jaws (in millimeters). 



Number of lot. 



810. 



TTpper jaw, tip to bottom of notch 12 



Transverse breadth, at notches I 9 



Tip to end of frontal lamina j 38 



Lower jaw, tip to bottom of notch 11 



Tip to notch of mentum 



Tip to ventral end of gular lamina 



Mentum to inner end of lateral alai 



Breadth of lateral alse 



Breadth of odontophore, across face 



11 



31 

 15 

 5.5 



797. 



The fifth specimen, received in lot 879, Qctober, 1880, consists of two 

 of the sessile arms, but the suckers have lost their horny rings, so that 

 the identification cannot be very positive. The largest arm, which is 

 not quite entire, is 255 mm long, and 23 mm in diameter at the larger end. 

 It was taken from the stomach of a cod, on the Grand Banks, and pre- 

 sented to the United States Fish Commission by the captain and crew 

 of the schooner " Otis P. Lord." 



Specimens examined. 



