A. K. X r e)'riU — Xorth .1 mericaii Cephalopoda. 
445 
Figure 4. — Alloposv -v mollis Verrill. Terminal portion of a mature, detached heeto- 
cotylized arm. natural size. 
Plate LII. 
Figure 1. — Eledone verrucosa Verrill. Side view of the male, natural size. 
Figure la. — The same. Distal portion of the liectocotylized arm, to edge of hasal 
web. showing the terminal appendage and the lateral groove. 
Plate LIII. 
Figure l. — Eledone verrucosa Verrill. Dorsal view of the male, natural size. 
Plate LIV. 
Figure l Architeuthis princeps V. Side view. Restored mostly from No. 13. One- 
twenty-fourth natural size. 
Figure 2. — Sthenoteuthis pteropv-s V. Side view of the specimen from Bermuda. One- 
fourth natural size. 
Figure 2a. — Caudal fin of the same specimen. Dorsal view, one-fourth natural size. 
Figure 3. — Loligo Pealei Les. Portion from the middle of the tentacular club of a 
specimen having unusually small tentacular suckers : a, a', largest median 
suckers ; 6 , b'. lateral suckers, enlarged 4 diameters. 
Figure 4. — Stoloteuthis leucoptera V. Male. Second lateral arm, showing the greatly 
enlarged middle suckers, enlarged 4 diameters. 
Plate LV. 
Figure l. — Lestoteuthis Fabricii V. One of the tentacular arms; enlarged 2 diameters. 
Figure la. — The same. The larger claw. Side view. 
Figure 16. — The same. Lateral arm; enlarged 2 diameters. 
Figures 16' 1 b". — The same. One of the hooks; enlarged 8 diameters. 
Figure Ic . — The same. Portion of ventral arm ; enlarged 2 diameters. 
Figure 1 d . — The same. Pen, ventral view; natural size. 
Figure 2. — Desmoteuthis tenera V . General figure of male, dorsal view ; natural size. 
Figure 2a. — The same. Teeth of odontophore ; enlarged 22 diameters. 
Figure 26. — The same. One of the larger suckers of the lateral arms, front view; 
enlarged 8 diameters. 
Figure 2c. — The same sucker ; side view. 
Figure 2d. — Valve-like apparatus within base of siphon; natural size; &, orifice of 
siphon ; m, median organ ; i'. lateral papilla, and i, medio-dorsal papilla ; n, n', 
lateral cushions. 
Figure 3. — Bro.chioteuthis Beanii Verrill. Dorsal view of the male; natural size. 
Figure 3a. — The same. Pen, ventral view ; enlarged slightly. 
Figure 36. — The same. Teeth of the radula ; enlarged 22 diameters. 
Figure 4. — Desmoteuthis hyperborea. Side view of one of the large suckers of the 3d 
pair of arms, side view ; enlarged 8 diameters. 
Figure 4a. — The same. Peculiar organs on the interior of the medio-dorsal side of 
the base of the siphon; enlarged 2 diameters; t, median, i', lateral papillae. 
Figure 5. — Chiroteuthis lacertosa V. Young female. One of the suckers of the ten- 
tacular arms, front view ; enlarged 22 diameters. 
Figure 6. — Histioteuthis CoUinsii. One of the larger suckers of the median rows of 
the tentacular club, side view; enlarged 2 diameters. 
Figure 6a. — The same. One of the suckers of the sublateral rows of the tentacular club. 
