[67] CEPHALOPODS OF NORTHEASTERN COAST OF AMERICA. 277 



orly. The portion of the pen (of No. 2) preserved* and forwarded to 

 me includes all the cone and a part of the posterior end of the quill-por- 

 tion, attached within the concavity of the cone (Plate XIV, fig. 7). 

 The anterior end of the cone is concave and very obliquely terminated, 

 the dorsal side extending forward some distance along the dorsal side 

 of the quill. The whole length of the preserved cone (doubtless much 

 shrunken by the alcohol) is 44.5 cm (17.5 inches); of the oblique anterior 

 termination 15.25 cm (G inches); greatest diameter 4 ,m (1.6 inches). The 

 cone is nearly round, firm, translucent, brownish or deep amber-color, 

 and composed of numerous distinct concentric layers. The concavity of 

 the anterior end firmly embraces the remnant of the funnel of the quill, 

 which has numerous small costre converging to the apex ; two of the 

 dorsal costa3 are much stronger than the rest, forming a strong ridge 

 each side of the smaller median costa, which lies in a deep median de- 

 pression or furrow. 



The tentacular arms had lost their clubs; but the part remaining was 

 •cylindrical, 2.5 inches in diameter. The other arms were somewhat 

 thicker. The few suckers remaining on them were attached by slender 

 pedicels, and arranged in two alternating rows ; they were furnished 

 with horny rims having the edge entire, except where irregularly broken 

 away ; those of the distal part of the arms were gone. 



The portion of the arm of the second specimen preserved in alcohol 

 and sent to me came from the base of the left ventral arm. It is G5 mm in 

 length ; diameter from inner to outer surface, not including marginal 

 membrane, 45 mm ; including membrane, G4 mm . It is well rounded on the 

 inner face, but more flattened on the upper side, while the outer surface 

 is broadly rounded ; the outer angle has a strong, thick marginal mem- 

 brane, 19 mm wide (see section of this arm, Plate XIV, fig. 8, c). The 

 sucker-bearing surface is broad, with a slight marginal membrane along 

 each margin (&, b 1 ), rising into broad, flat, somewhat thickened, blunt 

 lobes alternating with the suckers. Two alternating rows of firm, 

 smooth, rather irregular-shaped tubercles run along the median region, 

 between the rows of suckers, with which they alternate, on each side. 



This segment of the arm still bears five suckers, which appear to rep- 

 resent the first, second, and fourth pairs, though there may possibly 

 have been others before the first of these. They are all similar, rather 

 small in proportion to the arm, round, but little oblique, decidedly con- 

 vex beneath, and with a rather long, slender pedicel (fig. 8, a). The 

 horny marginal rings are dark brown, yellowish at the thin edge, which 

 is entire and nearly smooth, except where broken. The largest of these 

 remaiuing suckers are 8.5 mra in diameter outside ; aperture, 5'"'" ; height 

 of cup, 7 mm ; length of pedicel, 3 mm . 



' * Mr. Dall states that he attempted to dry the rest of this pen, and that of No. 3, 

 hut they turned hrown, and then hlack, effloresced, and decomposed. He also states 

 that the pen, when fresh, was translucent whitish, and that it changed to hrownish 

 yellow in the alcohol. 



