AY 
255 
PLATE XVIa. 
Figure 1.—Architeuthis Harveyi V. (No. 5). Teeth of the odontophore, from the 
anterior portion, enlarged 18 diameters; a, median; b, inner lateral; c, and d, 
the two outer lateral teeth; ¢, marginal plates. 
Figure 2.—The same. Teeth from the same specimen, from farther back, on the 
dorsal portion of the odontophore. Lettering as in figure 1. 
Figure 3.—The same. Anterior portion of odontophore, showing the teeth nearly in 
their natural positions, enlarged. 
Figure 4.—The same. Portion of the membrane lining the palate, showing teeth and 
hard granyles, enlarged. 
Figure 5.—The same. Two of the granules from the membrane lining the mouth, 
enlarged 18 diameters. 
Figures 6 and 6*.—The same. One of the largest and least oblique of the horny 
rings from the suckers of the sessile arms; top and side-views, enlarged 14 
diameters. 
Figures 7 and 7*.—The same. One of the medium sized, and more oblique suckers 
of the sessile arms; top and side-views, enlarged 14 diameters. 
Figure 8.—The same. Another similar sucker, but smaller and more oblique; top- 
view, enlarged 14 diameters. 
Figures 9 and 9a.—The same. One of the horny rings from one of the smooth-rimmed 
suckers on the ‘wrist’ of the ‘club’ of the tentacular-arms; top and side-views, 
enlarged 3 diameters. 
Figures 10 and 10a.—The same. One of the small suckers from the terminal portion 
of the ‘club,’ top and side-views, enlarged 3 diameters. 
Figures 1 to 5, and 8, are camera-drawings by the author. The others are by J. H.: 
Emerton. 
Puate XVII. 
Figures 1 and 1*.—Architeuthis princeps Verrill (No. 14). A marginal ring from one 
of the large suckers of the tentacular-arm ; 1, side-view, enlarged 14 diameters ; 
1°, portion of the rim, enlarged 3 diameters. 
Figures 2 and 2*.—The same. One of the medium-sized oblique sucker-rims from a 
sessile arm, enlarged 14 diameters; top and side-views. 
Figures 3 and 4.—The same. Top and side-views of one of the smaller sucker-rims 
from a sessile arm, enlarged 3 diameters. 7 
Figures 5 and 6.—The same. Top and side-views of a complete sucker, with its 
pedicel, from a sessile arm, enlarged 14 diameters. 
Figure 7.—The same. Top-view of one of the smaller, very oblique sucker-rims 
from a sessile arm, enlarged 3 diameters. 
Figure 8.—The same. Portion of the horny rim of a medium-sized sucker from a 
sessile arm; top-view, enlarged 6 diameters, from a camera-drawing. 
Figure 9.—The same. Side-view of the horny ring of one of the largest and least 
oblique of the suckers of the sessile arms, enlarged 14 diameters. 
Figure 10.—The same. Side-view of the horny ring of one of the marginal suckers 
of the tentacular-club, enlarged 3 diameters. 
Figure 11.—A. princeps (No. 13). Portions of the horny ring of one of the large 
suckers of the tentacular-arm, much enlarged; @ and b, portions of the margin, 
from the outside ; c, portion seen from the inside. 
Figures 8 and 11 are camera-drawings by the author; all the others are by J. H. 
Emerton. 
