REPORT OF COMMISSIONER OF FISH AND FISHERIES. [ 234 ] 
Figure 4.—Tlie same. Female; front view of tlie beak and buccal membranes; nat¬ 
ural size; to, mandibles; /, inner fold ; e, second fold of the buccal membrane ; a, 
dorsal; b, c, lateral; cl, 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.— Loligo 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 ; f natural size. Viewed in the same manner 
as figures 1 and 2. 
Figure 4 a .—The same. Pen; side view of tip ; enlarged. 
Figure 5.— Loligo Galii D’Orb. Pen ; f natural size. 
Plate XXVIII. 
Figure 1.— Loligo Pealei, var. pallida Verrill. Stale, 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 the 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 1 , 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; c, the palatine lamina ; a b, the cut¬ 
ting edge of beak ; b c, anterior or cutting edge of ala. 
Figure 5 a. —The same. Lower mandible: a, rostrum; a b, cutting edge ; b c, anterior 
edge of ala ; d, menturn or chin; e, gular lamina. 
Figure 6.—The same. Part of the teeth of the odontopliore; enlarged 50 diameters; 
a, median tooth, front view ; c, next to outer lateral teeth ; d, outer lateral teeth ; 
e, marginal plates; all are in their natural positions, except a. 
Figure 7.—The same. Portion of the radula ; enlarged 22 diameters. 
Figure 8.— Loligo Pealei. Portion of the radula ; 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 11a.—The same sucker, with pedicel; front view ; enlarged 22 diameters. 
Figures 5 and 5 a were drawn by the author; figure 9 was drawn by J. II. 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 1 , muscles; b, olfactory crests; c, eye ; d, siphon, 
cut open ; d", cavity of siphon ; e, valve of siphon ; /, one of the connective carti¬ 
lages of the siphon ; /', one of the connective cartilages of the mantle, in the form 
