A. E. VerriU — North American Cephalopoda. 
431 
Chiroteuthis D’Orb. (Seep. 299). 
Chiroteuthis is the only genus in this family that has been hitherto 
recognized. 
8. Chiroteuthis lacertosa Terrill. (pp. 299, 408). 
Brachioteuthis Terrill. (See p. 405). 
9. Brachioteuthis Beanii Terrill, (p. 406). 
Calliteuthis Terrill, (p. 295). 
10. Calliteuthis reversa Terrill, (p. 295). 
Calliteuthis ocellata (Owen) Terrill, (p. 402). 
Family HISTIOTEUTHIDiE, now 
Loligopsidce (pars) D’Orbig., Cephal. Acetab., p. 320, 1835-48. 
ChiroteuthidcR (pars) Gray, Catal. Brit. Mus., Moll., vol. i, p. 42, 1 849. 
Body small, short, with small caudal fins. Mantle united to the 
neck by three movable cartilages. Siphon with neither dorsal bridle 
nor internal valve (?).* Head large. Olfactory crests absent. Eyes 
large, not prominent; lids free and simple; no sinus. Buccal mem- 
brane with six smooth lobes; buccal aquiferous openings four. Nine 
brachial openings at the bases of the tentacular arms. Six upper 
arms usually united by a very broad web ; sucker-rings convex, with 
small, oblique apertures. Tentacular arms moderate, with a well- 
developed club, bearing large, normal, central suckers, and small 
marginal ones ; proximal part of the club with connective suckers 
and tubercles. Pen broad, short, lanceolate, much like that of Loligo. 
Histioteuthis D’Orbignv. (See p. 233). 
11. Histioteuthis Collinsii Terrill, (pp. 234, 300, 404). 
TAONIDEA Merrill. 
Eyes large, stalked or prominent, having free lids, but no sinus. 
Mantle united to base of siphon and back of neck by three muscular 
commissures. Siphon large, without a true subterminal valve, but 
usually with special elevated processes, or flaps, in the basal portion. 
Stomach small, far back; intestine very long, covered with lateral 
* According to D’Orbigny there is no valve in this genus, nor in Chiroteuthis, but in 
the latter there is certainly a valve, and it may have been overlooked by him, also, 
in the former. My specimens lack the siphon. 
