352 
A. E. Verrill — North American Cephalopods. 
their bases by a short web, which is absent between the ventral 
arms ; the dorsals are shortest ; the third pair the longest and largest ; 
the second pair and ventrals about equal in length. Suckers, (PI. 
XLVI, fig. 5, a), numerous, sub-globular, not very small, the margin 
bordered with several rows of minute scales ; near the base of the 
arms they are biserial, there being usually four to six thus arranged 
in each row ; then, along the rest of the length of the arms they 
become more crowded and form about four rows, those in the two 
middle rows alternating with those in the marginal rows; toward the 
tip they become very small and crowded, especially on the dorsal and 
ventral arms. The number of suckers varies with age, but on one of 
the larger specimens they were as follows : on each dorsal arm, sixty ; 
on one of second pair, fifty-five; of third pair, fifty-three; of ventral, 
sixty-five. In this specimen ( ? ), the third arm of the right side and 
ventral arm of left side were abruptly terminated (accidentally), 
while the others were tapered to acnte points. The tentacular arms, 
in preserved specimens, will extend back to the posterior end of the 
body ; the naked portion is smooth, somewhat triquetral, with the outer 
side convex and the angles rounded ; terminal portion widening rather 
abruptly, long ovate-lanceolate, curved and gradually tapered to the 
tip ; the sucker-bearing portion is bordered by a wide membrane on the 
upper and a narrow one on the lower margin ; the suckers (Plate 
XLVI, fi g. 5, b , c,), are very small, sub-globular, crowded in about 
eight to ten rows in the widest portion. 
The males differ from the females in the relatively greater size of 
the suckers on the middle of the lateral and ventral arms, those 
toward the tips becoming somewhat abruptly smaller, while in the 
female they decrease more gradually. 
Color, pinkish, thickly spotted with purplish brown above, paler 
and more sparsely spotted beneath and on the outside of the long 
arms ; the inner surface of the arms and front edge of the mantle are 
pale. 
Length from bases of arms to posterior end of body, 40 mm ; of body, 
25 ; of head, 15 ; breadth of body, 1 7 ; of head 1 7 ; length of fins, 15 ; of 
insertion, 11 ; breadth of fin, 8 ; front of fin to edge of mantle, 5 ; 
length of free portion of dorsal arms, 12‘5 ; of second pair, 15 ; of 
third pair, 18; of ventrals, 13; of tentacular arms, 40 ; breadth of 
dorsal arms, at base, 3'5 ; of second pair, 3*5 ; of third pair, 4 ; of 
ventrals, 3*5 ; of tentacular arms, at base, 2 ; at expanded portion, 
3-5 ; length of latter, 10-5 ; diameter of largest suckers of sessile 
arms, 0-9 ; length of free portion of siphon, 7 mm . 
