[ 77 ] CEPHALOPODS OF NORTHEASTERN COAST OF AMERICA. 
Head large, with very large eyes; pupils round. The arms are long and 
taper to slender tips; the dorsal ones are smaller and shorter than the 
others; the lateral and ventral pairs are nearly equal iu length, and 
about as long as the mantle; the ventral arms are somewhat more slender 
than the lateral ones. All the arms appear to have borne slender-pedi- 
celed claws or hooks, with strongly incurved horny points, but only the 
fleshy parts of these are left, in most cases, and the tips of the arms are 
bare. On the ventral arms these hooks were smaller, and in four rows; 
the fleshy portion of these consists of a small rounded head with lateral 
lobes, running up, on one side, into an incurved beak, so that the shape 
is somewhat like a bird’s head. On the other arms the claws were in 
two rows only, but they were much larger; in a few cases, on the lateral 
arms, the horny claws are left. These are strongly compressed and 
deeply imbedded in the muscular sheath, only the sharp incurved point 
projecting (figs. 3 c, 3 d). 
The tentacular arms (fig. 3) are long and strong, their length being 
more than twice that of the sessile arms. The club is rather stout, long, 
decidedly expanded, and has an elevated, crest-like keel on the distal 
half of its dorsal surface; this keel rises abruptly at its origin, and is 
colored on the outer side, but white on the face next to the inner surface 
of the club. The club is broadest near its base, the distal third is nar¬ 
row and the tip rounded. The armature is remarkable: in the middle 
line there is a row of six medium-sized hooks (fig. 3, a"), followed by two 
much larger ones («, a/), situated near the middle; these have lost their 
horny claws; series of minute, slender-pediceled suckers ruu along the 
club, either side of the median line, and beyond the large hooks these 
rows unite and entirely cover the face of the distal third of the club 
(fig. 3, d ), there forming about eight rows; at the tip there is a circular 
group of minute suckers [d') ; toward the base of the club the lower 
side is expanded and bears a row of five peculiar suckers (fig. 3, e), 
having a marginal series of slender, minute, incurved spinules; these 
suckers have very thick basal processes, which are appressed and di¬ 
rected toward the central line of the club, bearing the suckers on their 
inner ends, attached by short pedicels; round connective tubercles alter¬ 
nate with these suckers, in the same row; beyond these there is a trian¬ 
gular marginal group of slender-pediceled suckers (c), of about the same 
size; other rows of minute pediceled suckers (or hooks) occupied the 
submedian area between the marginal ones and the central line, which 
is indicated by a strong white cord. The opposite margin of the club 
appears to have borne several rows of small suckers, but this part is 
badly injured. A band of minute papillte (e'), apparently the remnants 
of suckers and alternating connective tubercles, extends downward for 
more than half the length of the tentacular arm; at first this band is 
like a continuation of the connective suckers and tubercles on the margin 
of the club, and the papillae are apparently iu a single row, while the 
surface near them is crossed by fine transverse grooves or furrows; but 
