REPORT OF COMMISSIONER OF FISH AND FISHERIES. [76] 
ticulated suckers may or may not accompany the books; tip of arm 
with a cluster of small, smooth-rimmed suckers ; proximal part of club 
with a mixed group of connective tubercles and smooth-ringed suckers, 
by which the arms can be fastened together and used in concert. Ses¬ 
sile arms with hooks, with suckers, or with both. Eyes with free lids 
and a sinus. Mantle united to neck by three simple, movable, con¬ 
nective cartilages. Siphon with a valve and with dorsal bridles. Nu¬ 
chal or alfactory crests well developed ; sometimes several longitudinal 
crests exist on each side. Pen thin, lanceolate, usually with a posterior 
hooded portion, and sometimes terminated by a solid cartilaginous cone. 
Odontophore in Cheloteuthis and Gonatus with only five rows of teeth, 
in others with seven rows. 
For a synopsis of the hitherto-described existing genera of this 
family, see pp. G9, 70. 
Owen’s family Teuthulce included nearly all the Decacerci having horny 
• internal shells. As adopted by D’Orbigny, it included Ommastrephidcc 
and Teuthidce. 
CHELOTEUTHIS Verrill. 
Trails. Conn. Acad., vol. v, p. 234, Jan., 1881; Bulletin Mus. Corap. Zool., vol. viii, 
p. 109, 1881. 
Allied to JEnoploteuthis, Lestoteuthis, and Abralia , but with a more 
complicated armature than either of these genera. Ventral arms with 
denticulated suckers, arranged in four rows; other arms have two me¬ 
dian rows of sharp incurved claws, (distal portions have lost their arma¬ 
ture). Tentacular arms long, with broad clubs, strongly keeled exter¬ 
nally, and with series of connective suckers and tubercles extending for 
some distance along the inner surface of the arms. * Tentacular club pro¬ 
vided with a marginal row of connective suckers, alternating with tuber¬ 
cles, along one margin; with a central row of unequal hooks, some of them 
very large; with submedian groups of small, slender-pediceled suckers 
(or hooks); with marginal series of small suckers; and with several 
rows of small suckers covering the prolonged distal portion of the face. 
Connective cartilages on the base of the siphon simple, long-ovate; the 
corresponding processes of the mantle are simple longitudinal ridges. 
Odontophore with five rows of teeth. 
The caudal fin, pen, and many other parts are destroyed. 
Cheloteuthis rapax Verrill. 
Cheloteuthis rapax Verrill, Trans. Conn. Acad., vol. v, p. 234, pi. 49, figs. 1-1/, 
Jan., 1881 ; Bulletin Mus. Comp. Zool., vol. viii, p. 110, Cephalopoda, pi. 
2, figs. 1-1/, 1881. 
Plate XV, figures 3-3/, 4. 
The body was rather short and thick, tapering rapidly backward. 
The caudal fin appears to have been skort-rkomboidal, but this is un¬ 
certain. The siphon is large, with an internal valve. The connective 
cartilages (fig. 3 e) on the sides of the base of the siphon are long- 
ovate, with the posterior end widest and rounded. The corresponding 
cartilages on the inside of the mantle are simple longitudinal ridges. 
