292 
bulletin oe the bureau oe eisheries. 
Anns stout and muscular, apt to be heavily reciuved and coiled in alcoholic specimens; at first 
rapidly tapering, but attenuate at the extremities; length moderate, perhaps three to four times that 
of the body; on the average probably subequal, but variable, in the adult the ventral pair usually a 
little the longest. Umbrella only moderately developed in the specimens seen; about equal all round, 
and continued as a prominent contractile web along the outer margins of all the arms. Suckers large, 
rather flattened, and closely set except along the distal portions of the arms, where the two rows become 
relatively much more widely separated, a character not shown by the figure in the Challenger report; 
first four suckers at the base in a single row. In the male from two to four suckers opposite the umbrella 
margin on each arm undergo a slight enlargement. 
The third right arm in the male is not very much shorter than its mate and the hectocotylized 
portion is very small. The calamus is poorly developed and does not show the usual papilliform struc- 
ture; ligula extremely small, its inner sruface excavated and provided with about 10 easily obscured 
transverse ridges. (PI. xlviii, fig. 6.) 
Color of preserved specimens everywhere a dull drab or stone gray, lighter below and on the inner 
surface of the umbrella and arms; dorsally the surface is so heavily clouded with a dark slate as to be 
almost tmicolored, but in the lighter areas and when the folds of the skin are stretched apart the dark 
pigment is seen to be disposed in narrow anastomosing veins which are here and there very conspic- 
uous.® A series of confluent blotches of similar tint extends along the flattened sides of the arms just 
outside the suckers and in rough alternation with the latter. In well-preserved material there is a 
large roundish oculation a little way in front of and below the eye on either side; the very dark center 
is surrounded by a broad ring of lighter tint which is not always easy to make out; the entire spot is often 
somewhat obsctued owing to the heavy pigmentation generally, but as it is conspicuously present in 
at least one of the male specimens examined, it is clearly not to be looked upon as a sexual character. 
The color in life is not known. 
Beak and radula not examined. 
Measurements of Poeypus marmoratus. 
Number in author’s register. . 
Sex 
Total length 
Tip of body to dorsal base of vunbrella . . . . 
Width of body 
Length of body 
Width of neck 
Width across eyes 
Mouth to tip of right dorsal arm 
Mouth to tip of left dorsal arm 
Mouth to tip of right second arm 
Mouth to tip of left second arm 
Mouth to tip of right third arm 
Mouth to tip of left third arm 
Mouth to tip of right ventral arm 
Mouth to tip of left ventral arm 
Length of hectocotylus 
Length of umbrella between dorsal arms . . 
Length of umbrella between ventral arms. 
Length of funnel 
183 
183 
183 
183 
185 
(? 
9 
? 
0 
juv. 
mm . 
mm . 
mm . 
mm . 
mm . 
59 
68 
62 
59 
45 
17 
20 
16 
16 
13 
II 
14 
13 
12 
10 
12 
15 
12 
11 
8 
10 
9 
8 
7 
II 
10 
11 
10 
9 
37 
42 
41 
40 
22 
24+ 
40 
41 
40 
21 
40 -f- 
43 
46 
43 
27 
38 
48 
45 
43 
29 
24 
44 
43 
31 
42 
47 
46 
42 
32 
37 
35 
43 
40 
29 
39 
41 
45 
40 
30 
6-1- 
13 
II 
10 
4 
8 
8 
7 
10 
4 
5 
6 
5 
5 
4-5 
mm . 
? 
9S 
61 
mm . 
“271 
56 
38 
38 
“310 
“340 
“33S 
“280 
“ 29 s 
“34S 
“340 
4 
26 
29 
“182 
®i8s 
“188 
®I90 
“i6s 
“19s 
®2IO 
®2IS 
1-5 
25 
25 
a Largely estimated, but figures given for what they may be worth. 
Total diameter of ocular spot, right side (S. S. B. 175) 12 
Total diameter of ocular spot, left side (S. S. B. 175) ii 
Diameter of dark center of spot, right side (S. S. B. 175) 8 
From this feature arises the significance of the name marmoratus . 
