444 
A. E. VerriU — North American C ephalopofJs . 
Plate XLIX. 
Figure 1. — Lestoteuthis Fdbricii V. ( Cheloteuthis rapax Verrill.) Club of tentacular 
arm. front view, enlarged two diameters. The horny hooks are lost from the 
claws, a. a'. a"; b, c. small lateral suckers ; d. d'. small suckers of distal portion : 
e. F. connective suckers and tubercles. 
Figure 1«. — The same. One of the suckers corresponding to c of fig. 1 . front view, 
much enlarged. 
Figure lb. — The same. A small sucker, corresponding to d of fig. 1. 
Figures 1 c. Id. — The same. Front and side-views of one of the claws, with its 
enclosed horny hook or ‘ nail.' from the middle of a lateral arm. enlarged eight 
diameters. 
Figure le. — The same. Connective cartilage from base of siphon, front view, enlarged 
two diameters. 
Figure I f . — The same, Beak and pharynx, side view, enlarged two diameters. 
Figure 2. — Mastigoteuthis Agassizii Verrill. Front view of the beak, buccal membranes 
( b. d). and bases of the arms: enlarged two diameters. 
Figure 3a. — The same. Side view of head, siphon, and anterior part of mantle, show- 
ing the cartilage (c), on the inner surface of the mantle, which interlocks with c' 
on the base of the siphon ; t. olfactory (?) papilla, near the ear; p. an aquiferous 
pore (?); s, siphon: t a. base of tentacular arms: 1. 2. 3, 4. bases of correspond- 
ing pairs of arms. 
Figure 3b. — The same. Pen, ventral view enlarged two diameters. 
Figure 3c. — The same pen. Side view. 
Figure 3d. — The same. Portion from near the end of one of the tentacular arms, en- 
larged sixteen diameters. 
Figure 3e. — The same. Suckers from the tentacular arm, much enlarged : a. side 
view ; a' and a", nearly front views. 
Figure 3 g . — The same. One of the suckers from the middle of a lateral arm. front 
view, much enlarged. 
Figure 4. — Octopus Bairdii Verrill. Portion of odontophore, much enlarged. 
Figure 4a. — The same. Jaws: s, superior: i. inferior mandibles, enlarged two 
diameters. 
Plate L. 
Figure 1. — Adoposus mollis V. Young male. Side view, showing the sac containing 
the hectocotylized arm cut open, so as to expose the partially developed arm. 
One-half natural size. 
Figure la. — The same. Hectocotylized arm removed from the sac. enlarged two 
diameters. 
Figure 2. — The same. Young female. Ventral view, one-half natural size. 
Figure 2a, —The same specimen. Dorsal view, one-half natural size. 
Plate LI. 
Figure 1. — Octopus Bairdii. var. Verrill. Side view of a young male, enlarged about 
two diameters. 
Figure la. — The same. Terminal appendage of the hectocotylized arm. enlarged 
eight diameters. 
Figure 2. — Octopus lentus Verrill. Side view of a male, enlarged about two diameters. 
Figure 3. — Adoposus mollis Verrill. Portion of an arm. with suckers, from near the 
base, natural size. 
