- [213] CEPHALOPODS OF NORTHEASTERN COAST OF AMERICA. 
is well developed, with a broad marginal membrane along each side, 
having scolloped or notched edges. The club terminates in an ovate, 
subacute, dark purple, hollow organ, with its opening on the outer side 
of the arm. The suckers (Plate XLV, fig. 5) are regularly arranged in 
four rows. The stalk is long, with a dark purple, fluted summit sur- 
mounted by avery slender pedicel, bearing the sucker, which is hooded, 
with a lateral opening; the horny ring bears several slender, sharp 
teeth on the outer side, the central one being much the longest; the soft 
rim of the sucker is covered with many rows of small scales, the inner 
ones with acute tips. The lateral suckers do not alternate with the 
median, but the two arise close together, opposite each other, and in 
line with the teeth on the edge of the marginal membrane. The inner 
surface of the club is specked with brown chromatophores, and the 
marginal membranes are crossed by brown lines, corresponding to the 
notches in their edges. 
Total length to end of ventral arms, 194™™; to end of third pair, 150; 
to end of dorsal arms, 127; tail to dorsal mantle edge, 59; to base of 
dorsal arms, 86; length of dorsal arms, 41; of second pair, 56; of third 
pair, 69; of ventral, 110; of tentacular arms, 180; of club, 17; breadth 
of club, 5; length of caudal fin, 27; its greatest breadth, 24; of dorsal 
arms, 4; of third pair,.5; of ventral arms, 8; of bases of tentacular 
arms, 1.5; diameter of largest suckers of lateral arms, 1™™. 
This species differs widely from C. Bonplandii in the sessile arms, etc. 
It is much more nearly related to C. Veranyi, from which it differs de- 
cidedly in the pen; in the suckers; and in the caudal fin, if these parts 
are correctly described and figured, for the latter. 
BRACHIOTEHUTOIS Verrill.. 
Trans. Conn. Acad., v, p. 405, Nov., 1881. 
Allied to Chiroteuthis. Differs in having the lateral connective car- 
tilages of the siphon simple, long-ovate, and the corresponding cartilages 
of the mantle in the form of simple, linear ridges; a rhombic caudal fin; 
pen with a simple, linear, anterior portion, suddenly expanding into a 
much broader, lanceolate, posterior portion, which is naturally infolded; 
arms slender, the ventral ones not distinctly obliquely compressed ; 
tentacular club without a spoon-like cavity at tip. 
The siphon has a valve and dorsal bridle as in Chiroteuthis, and the 
suckers, so far as preserved, are similar, but those of the club are more 
numerous, and their pedicels apparently had a less prominent bulb be- 
low the sucker. 
In addition to the type-species, this genus probably includes the 
Chiroteuthis Bonplandii Verany, from the eastern Atlantic. 
C. Bonplandii, as figured, has a very similar pen, but the shape of 
the caudal fin is different, and the arms are more nearly equal in length. 
The arms are also represented as having small swellings at the tips. 
Its tentacular arms are not known. 
