REPORT OF COMMISSIONER OF FISH AND FISHERIES. [192] 
of arms, 112 and 105; of second pair, 103 and 96; of third pair, 112 and 
106; of fourth pair, 94 and 97; breadth of those of the three upper 
pairs, 8; of the ventral pair, 7™™. 
Male: Body depressed, rounded posteriorly, with only a trace of a 
lateral and posterior fold; surface soft and nearly smooth, but showing 
a small number of minute white papille sparsely scattered over the 
dorsal surface. Cirrus above the eye small and simple, usually con- 
tracted into a small wart-like papilla. Head broad and flattened ; eyes 
large. Arms rather long and slender, with slender tapering tips, their 
bases united by a rather wide web. Suckers small, very prominent, 
forming two regular rows quite to the base. 7 
The first two pairs of arms are nearly equal and somewhat longer 
than the two lower pairs, which differ but little between themselves. 
The hectocotylized arm (third of right side) bears thirty five suckers, in 
two rows, and a remarkably large, terminal spoon-shaped organ, which 
occupies more than a third of the total length of the arm; its sides are 
bent up and the edges inrolled, so as to form a deep cavity; its outer 
end is broadly rounded laterally, and terminates in a central, narrow, 
acute lobe; internally there are nine large, high, oblique lamelle, with 
deep fossz between them; the proximal end has a large, acute, triangu- 
lar lobe, with involute margins; from this lobe a broad groove extends 
along the lower edge of the arm to the margin of the web; where it 
terminates there is a distinct thickening of the bounding membrane. 
The two males of this species, described above, were dredged by Mr. 
Agassiz, on the Blake, in 1880, in 464 and 603 fathoms. They agree 
well in the peculiar characters and large size of the appendage of the 
hectocotylized arm. The females only were previously known. AlI- 
though these males have a mere trace of the loose membranous fold of 
skin, along the sides and around the posterior end, so conspicuous in 
the original female specimen of this species, they agree so well in other 
characters that I unite them without much hesitation. It is probable 
that the presence or absence of the membranous fold, in this and other 
species, may be due merely to differences in the state of contraction 
when they die, or even to differences in the strength of the alcohol. 
Measurements in millimeters. 
. 
Right side. | Left side. ¢ | Right side. 2 | Left side. ? 
Total Yeneth..-...-.-..--<-- Jodaneees Dawes sucns = ess. = 108 | ee ee eee 
Posterior end to center of eye -...-.-- BY Oe ye ee eee eed Pee SRO mre er) oe yori 42 ee 
Eye to tip of dorsal arms ............ Ee ain Soin = nin aio 0 <) gine apis cs one se tere 
Breadth of body... -.. 2.2.3... 00.00.02 Shi Fess b9. £55 Sf. 40, «fist -EEEe ees 
Bresannon Need... . 2. sc neces SO We eae dee c's cides Sag! leewameeae ane aa 
Length of dorsal arms from mouth .. 65 61 112 105 
Length of second pair from mouth .. POW he ae IR SRR 103 96 
Length of third pair from mouth .-...|..-..-..-..----+ 52 112 106 
Length of hectocotylized arm from 
pe noe - Soe Se ae tone eee 584 A eet tata p sees] Acaasbhass chet eps dee eee 
Length OG daraugp ae a. 5552. ~ 0000 4) ono nmiseaeede eee 53 94 97 
Length of spoon-shaped appendage. . 7 | ee se Oe ee Be ne MPR = ihn 
Breadth of the same........-----.-.. IGS Py ilmeeetas oe eacedioie a5 06 P= ate s2|- sooner eee 
