REPORT OF COMMISSIONER OF FISH AND FISHERIES. [234] 
Figure 4.—The same. Female; front view of the beak and buccal membranes; nat- 
ural size; m, mandibles; jf, inner fold; e, second fold of the buccal membrane; a, 
dorsal; b, c, lateral; d, ventral angles of the outer buccal membrane, with their 
small suckers; s, peculiar horseshoe-shaped tubercle, for the attachment of the sper- 
matophores during copulation. 
PLATE XXVII. 
Figure 1. —Lolig go Pealei, var. borealis. Female specimen, from Annisquam, Mass. Pen; 
natural size. Represented as flattened to show the full width of the thin portion. 
Figure 2.—Loligo Pealei Les. Female specimen, from Vineyard Sound. Pen; natu- 
ral size; represented as before in the same manner. 
Figure 3.—The same. Pen of a young specimen from Vineyard Sound; natural size. 
Represented in the same way. 
Figure 4.—The same. Pen of a male; } natural size. Viewed in the same manner 
as figures 1 and 2. 
Figure 4a.—The same. Pen; side view of tip; enlarged. 
Figure 5.—Loligo Gahi D’Orb. Pen; # natural size. 
PLATE XXVIII. 
Figure 1.—Loligo Pealei, var. pallida Verrill. Male, from Ansonia, N. Y. Dorsal 
view; about + natural size. 
Figure 2.—The same. Pen; about $ natural size. 
Figure 3.—The same. Male. Suckers enlarged 3 diameters; b’, front view of tenth, 
from third arm; b, side view of the same; c, side view of ihe horny ring of the 
fifth large sucker of the tentacular club; c’, front view of the same. 
Figure 4.—The same. Female. Suckers: a, lateral, and a’, front view of tenth 
sucker from the third pair of arms; e, side, and e’, front view of the fifth large 
sucker of the tentacular arm; enlarged 3 diameters. 
Figure 5.—The same. Upper mandible: a, rostrum or tip of the beak; b, the notch; 
c, the inner end of ala; d, the frontal lamina; e, the palatine ane a b, the cut- 
ting edge of beak; 6c, anterior or cutting so of ala. 
Figure 5a.—The same. Lower mandible: a, rostrum; ab, cutting edge ; bc, anterior 
edge of ala; d, mentum or chin; e, gular lamina. 
Figure 6.—The same. Part of the teeth of the odontophore; enlarged 50 diameters; 
a, median tooth, front view; ¢, next to outer lateral teeth; d, outer lateral teeth ; 
e, marginal plates; all are in as natural positions, except a. 
Figure 7.—The same. Portion of the radula; enlarged 22 diameters. 
Figure 8.—Loligo Pealei. Portion of the aula: enlarged about 20 diameters. 
Figures 9, 9a.—The same. Male; side and front views of the horny ring of one of 
the marginal suckers of the tentacular club; enlarged 10 diameters. 
Figure 10.—Teeth on the lining membrane of the palate ; enlarged 25 diameters. 
Figure 11.—Chiroteuthis lacertosa. One of the tentacular suckers; front view; en- 
larged 75 diameters. 
Figure 1la.—The same sucker, with pedicel; front view; enlarged 22 diameters. 
Figures 5 and 5a were drawn by the author; figure 9 was drawn by J. H. Blake, 
from nature; the rest, by J. H. Emerton. 
PLATE XXIX. 
Figure 1.—Loligo Pealei, var. pallida. Male. Ventral view; about } natural size. 
The mantle has been cut open, a little to one side of the median line; most of the 
peritoneal membrane has been removed. C, lower side of head; M, mantle; F, 
caudal fin; a, lachrymal pore; a’, muscles; b, olfactory crests; c, eye; d, siphon, 
cut open; d’’, cavity of siphon; e, valve of siphon; f, one of the connective carti- 
lages of the siphon; f’, one of the connective cartilages of the mantle, in the form 
