[229] CEPIIALOPODS OF NORTHEASTERN COAST OF AMERICA. 
Figure 3.— Arcliiteuthis monachus Steenstrup (Type specimen). Lower mandible; natu¬ 
ral size. After Steenstrup. 
Figure 4.— Enoploieuthis Hartingii Verrill. Anterior portion of jaws; natural size. 
After Harting. 
Figure 5.— MoroteutJm robusta Verrill. Section of the solid, terminal cone of the pen ; 
natural size. 
Plate XIII. 
Figure 1.— Horoteuihis robusta (Dali) V. Side view of one of the specimens, as found 
on the beach ; gb natural size. 
Figure 2.—The same. Dorsal view. The dotted lines indicate portions of the arms 
that had been destroyed; ./ 3 natural size. 
Figure 3.—The same. Side view of the head and siphon, with the anterior part of 
the mantle, cut open; e, the eye; s, siphon ; o, o', o" , the three nuchal olfactory 
crests; c, c', c ", the connective cartilages attaching the mantle to the neck; c, late¬ 
ral cartilage of mantle; e', lateral cartilage at base of siphon ; c" , dorsal cartilage 
of neck; m, m', cut edge of mantle. 
Figure 4.—The same. The entire dorsal ‘ pen ’; side view; <f 2 natural size. 
Figure 5'.—The same. Ventral view. 
Figure 6.—The same. A portion from the middle of the ‘ pen’, less reduced. 
All the figures were made from the fresh specimens by Mr. W. H. Dali. 
Plate XIV. 
Figure 1.— Moroteuikis robusta (Dali) Verrill. Odontophore; side view; enlarged 3£ 
diameters. 
Figure 2.—The same. Part of a row of the teeth from near the anterior bend of 
the odontophore; enlarged 22 diameters; a, median tooth, front view; a 1 , side 
view of same; b, first lateral; b', the same, side view; c, second lateral, front 
view; d, outer lateral, front view. 
Figure 3.—The same. One of the inner lateral teeth, side view; enlarged 54 diameters. 
Figure 4.—The same. Median tooth, side view ; enlarged 54 diameters. 
Figure 5.—The same. Upper mandible, natural size. 
Figure 6.—The same. Lower mandible, natural size. 
Figure 7.—The same. Anterior end of terminal cone, showdng a portion of the post¬ 
erior end of the ‘ pen ’ inserted into it; 4 natural size. 
Figure 8.—The same. Section of a ventral arm, close to the base; natural size; a 1 , 
one of the suckers, side view; b and b 1 , marginal membranes; c, crest or mem¬ 
brane along outer angle; e, median vein, near inner surface. 
Figures 1 to 4 are camera-drawings by the author; the rest are by J. II. Emerton. 
Plate XV. 
Figure 1.— Lcstoteathis Fabrihii Verrill. Young. Pen; enlarged 2 diameters. Copied 
from G. O. Sars as Gonatus amcenus. 
Figure la.—The same. Part of odontophore. Copied from G. O. Sars. 
Figure 1&.—The same. Portion of tentacular club, front view; enlarged. Copied 
from G. O. Sars. 
Figure 2.—The same. Young. General figure, dorsal view; enlarged 2 diameters 
From an American example. 
Figures 2 a, 2b. —The same. Front and side views of one of the suckers from the outer 
rows of a lateral arm of the same specimen. 
Figures 2c, 2d. —The same. Front and side views of a hook-sucker from the median 
rows of the same arm. 
Figure 3.— Lestoteuthis Fabricii Verrill ( Cludoteuthis rapax). Club of tentacular arm, 
front view; enlarged 2 diameters. The horny hooks are lost from the claws a, a 1 , 
a" ; b, c, small lateral suckers; d, d', small suckers of distal portion; e, e', connec¬ 
tive suckers and tubercles. 
