288 REPORT OF COMMISSIONER OF FISH AND FISHERIES. [78] 



farther down the arms there may hare been two or more rows of suck- 

 ers which have been destroyed. 



The beak (fig. 3/) is somewhat compressed, with very acute mandi- 

 bles. The upper mandible has the point long and regularly incurved, 

 with the cutting edge regularly arched, without a basal notch, and form- 

 ing, with the anterior edge, an obtuse angle. Lower mandible with a 

 strongly incurved tip and regularly concave cutting edge, having no 

 basal notch and only a slight tooth on the anterior border, which forms 

 a very obtuse angle with the cutting edge. The radula has but five 

 rows of teeth (PI. XV, fig. 4), the inner lateral rows being absent. 



Color mostly gone, but where still remaining, as on the back of the 

 tentacular club, it consists of minute purple chrouiatophores ; inner sur- 

 face of sessile arms purplish brown. 



Measurements (in millimeters). 



Length of body 78 



Length of dorsal arms 58 



Length of second pair of arms 86 



Length of third pair of arms : 87 



Length of ventral arms 85 



Length of tentacular arms 225 



Length of club 29 



Breadth of club 7 



Breadth of tentacular arms 5 



Breadth of lateral arms at base 6 



Breadth of dorsal arms 5 



Diameter of eyeball 19 



Length of connective cartilages on siphon 14 



Breadth of the same 4 



A specimen of this remarkable squid, in very bad condition, was taken 

 from the stomach of a fish trawled at station 893, in 372 fathoms, about 

 100 miles south of Newport, R. I. It was accompanied by a specimen 

 of Ommast replies illecebrosus, in a similar condition. It had lost its pen, 

 its epidermis, and most of the horny hooks and sucker-rings ; the head 

 was detached from the body and the caudal fin was nearly destroyed ; 

 the eyelids were gone, but the eyeballs remained. The description must, 

 therefore, remaiu imperfect till other specimens can be obtained. 



Several loose horny hooks of a Cephalopod belonging to this family 

 were also dredged in the same region. They resemble the hooks of 

 Onyehoteuthis Banlcsii (Plate XV, fig. 4), but may have belonged to C. 

 rap ax. A larger one, from station 892, is bent nearly into a half circle. 



GONATUS Steenstrnp (f non Gray). 



tGonahis Gray, Catalogue Mollusca Brit. Mus., vol. i, Cephal. Antep., p. 67, 1849 (char- 

 acters inaccurate). 

 1 H. & A. Adams, Genera, vol. i, p. 36. 



Body slender, tapering; caudal fins short, broad, united posteriorly. 

 Pen narrow anteriorly, thin and lanceolate posteriorly, with a terminal, 

 hood-like expansion. Ventral arms with four rows of small, pedicellated 

 suckers; others with two larger median rows, with a horny ring, having 



