[77] CEPHALOPODS OF NORTHEASTERN COAST OF AMERICA. 287 



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 in 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, a'), situated near the middle ; these have lost their 

 horny claws ; series of minute, slender-pediceled suckers run 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, <?), there forming about eight rows ; at the tip there is a circular 

 group of minute suckers (cV) ; toward the base of the club the lower 

 side is expanded and bears a row of five peculiar suckers (fig. 3, c), 

 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 papillae (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 papillce are apparently in a single row, while the 

 surface near them is crossed by ftae transverse grooves or furrows ; but 



