REPORT OF COMMISSIONER OF FISH AND FISHERIES. [ 78 ] 
farther down the arms there may have 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. XY, 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 chromatophores; inner sur¬ 
face of sessile arms purplish brown. 
Measurements (in millimeters). 
Length of hotly.-.-.-— 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 Ommastrephes 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, remain 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 
Onychoteuthis Banlcsii (Plate XY, fig. 4), but may have belonged to C. 
rapax. A larger one, from station 892, is bent nearly into a half circle. 
GONATUS Steenstrup (?non Gray). 
tGonatus Gray, Catalogue Mollusca Brit. Mus., vol. i, Cephal. Autep., p. 67, 1849 (char¬ 
acters inaccurate). 
?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. Yentral arms with four rows of small, pedicellated 
suckers; others with two larger median rows, with a horny ring, having 
