144 A. BE. Verrili— Mollusca of the New England Coast. 
alternating with the median hooks, and with proximal and terminal 
groups of smaller suckers. Color pale, with numerous small dark 
brown chromatophores above, larger and more crowded on the head 
and on the bases of the arms; lower side with several larger, round, 
symmetrically placed, purplish brown spots, and with minute ones 
between them. 
Length of mantle, 15""; diameter of body, 7°"; length of fin, 
11"; breadth across fins, 18"; breadth of head, 7"™; diameter of 
eye, 455™"; length of dorsal arms, 18"; length of second pair, 
14™™; of third pair, 14"; of tentacular arms, 25™™; of ventral arms, 
10"". Probably this specimen is immature. 
The specimen described from the Blake collection is still younger, 
but the general figure referred to is from the original specimen, 
described above. 
Off Martha’s Vineyard, station 1137, in 173 fathoms, Fish Hawk, 
1882. Off Barbados, station 294, in 137 fathoms, Blake Exped., 
1878-9. 
Eledonella Verrill, gen. nov. 
General appearance similar to that of certain small species of Octo- 
pus and Eledone. Body oblong-ovate, soft and saccular, without 
fins. Mantle extending forward as far as the eyes. Gill-opening 
very wide, extending upward on the sides as far as the dorsal margin 
of the eyes, which may be partially concealed by the edge of the 
mantle. Armsslender, the upper ones shortest, the third pair largest. 
Suckers in a single row. Third arm of the right side hectocotylized 
by having the terminal half thickened and somewhat shortened, and 
bearing on its distal half a few very large urceolate suckers, very. 
much larger than any of the others, and quite different in form. 
Interbrachial membrane short. Eyes well developed, nearly covered 
by the skin; a mucus-pore close to the anterior ventral border of the 
orbit. Siphon moderately developed, free only near the tip ; pos- 
teriorly the basal part of the siphon extends into two commissual 
muscular bands on each side; the ventral one runs far back, while 
the lateral curves upward to join the mantle.’ There is a large median 
ventral commissure joining the mantle to the visceral mass; thus the 
gill-chamber is divided into right and left compartments, each of 
which is sub-divided into a superior and inferior portion, No special 
cartilages could be seen on the mantle, nor on the siphon. Repro- 
ductive organs large, highly colored with large orange chromato- 
phores. 
