MUSEUM OF COMPARATIVE ZOOLOGY. 11 
Length of body, above, 18 mm.; of body and head, 27 mm.; breadth of 
body, 15 mm.; length of insertion of fin, 12 mm.; its greatest length, front to 
back edge, 16 mm.; height, base to tip, 9 mm.; length of dorsal arms, 15 mm.; 
2d pair, 17 mm.; 3d pair, 18 mm.: 4th pair, 17 mm.; of tentacular arms, 
28 mm.; of club, 12 mm.; diameter of largest suckers of lateral arms, 60 mm.; 
of largest suckers of tentacular clubs, 12 mm. 
Station 148, in 208 fathoms, off St. Kitts, 1878-79. One female. 
Heteroteuthis tenera VERRILL. 
Amer. Jour. Sci., XX., p. 392, 1880; Bulletin Mus. Comp. Zool., XIII., p. 103, 
Pl. 3, figs. 5-5 b; PI. 7, figs. 2-2 d, 8-3 b, 1881; Trans. Conn. Acad., V., p. 357, 
Pl. 46, figs. 2-2d, 3-3 b, Pl. 47, figs. 5-5 b, 1881; Report U. S. Fish Com. for 
1879, [p. 175,] Pl. 33, Pl. 34, fig. 1, 1882. 
One specimen (9? ), from Station 148, in 208 fathoms, off St. Kitts. 
Octopus tuberculatus Brarnv. ? 
A species with long arms, a short basal web, and peculiar branched cirri 
above the eyes and scattered over the back. Probably young. 
The body is moderately large, oblong, swollen below, well rounded behind. 
Head about as broad as the body, with large prominent eyes. Upper surface 
of the body and head thickly covered with rather small, low warts, which also 
extend along the dorsal sides of the arms and on the basal web ; scattered over 
the upper surface of the body and head are prominent cirri, some of which are 
simple and tapered, while others are divided into three to five digitate lobes or 
branches ; of these, two are situated in the median dorsal line, four form a 
quadrangle on the dorsal surface of the body, and two are situated on each side 
of the body in line with the eyes ; on the head, one is situated in the median 
dorsal line between the bases of the dorsal arms ; one much larger and more 
complicated than the others is situated above each eye; this may have seven or 
eight slender branches ; the eyelids are covered with prominent warts; the 
lower surface of the body is paler and smoother, with only minute inconspicu- 
ous warts, more evident anteriorly. Siphon moderately large, strongly tapered. 
The arms are long and rather slender, tapering to slender tips ; they are sub- 
equal in size and length, the ventral ones a little smaller and shorter ; the 
suckers are rather small, the two rows well apart; the two basal ones are much 
smaller than the succeeding ones and stand nearly in the median line. The 
basal web extends about one third the length of the arms; the arms are bor- 
dered for some distance by a thin, narrow, marginal membrane on each side. 
The hectocotylized arm is but little shorter than its mate, and tapers to an acute 
but modified tip ; along the border of the arm there is an incurved marginal 
groove formed by the narrow, inflexed marginal membrane, which terminates 
