[227] CEPHALOPODS OF NORTHEASTERN COAST OF AMERICA. 437 



Figures 7 and la. — The same specimen. One of the rings from a medium-sized and 

 more ohlique sucker of the middle portion of the lateral arms; top and side views; 

 enlarged H diameters. 



Figure 8. — The same specimen. Another ring from a more distal, stialler, and more 

 oblique sucker, top uew; enlarged 1£ diameters. 



Figures 9 and 9a. — The same specimen. One of the horny rings from one of the 

 smooth-rimmed, sessile, connective suckers on the 'wrist' of the 'club' of the ten- 

 tacular arms; top and side views; enlarged 3 diameters. 



Figures 10 and 10a. — The same specimen. One of the small suckers from the distal 

 portion of the 'club', top and side views ; enlarged 3 diameters. 



Figure 11. — The same specimen. Caudal fin; n, natural size; drawn from the pre 

 served specimen. 



Figures 4, 5 and 11 were drawn by the author, also figure 8, which is a camera- 

 drawing. The others are by J. H. Emerton. 



Plate V. 



Figure 1. — Architeulhis Harveyi V. (No. 5). Teeth of the odontophore, from the an- 

 terior portion; enlarged 18 diameters; a, median ; b, inner lateral; cand d, the two 

 outer lateral teeth ; e, marginal plates. Drawn from detached teeth. 



Figure 2. — The same specimen. Teeth from farther back, on the dorsal portion of the 

 odontophore. Lettering as in fig. 1. 



Figure 3. — The same specimen. Anterior portion of odontophore, showing the teeth 

 nearly in their natural positions ; enlarged about 3 diameters. 



Figure 4. —The same specimen. Portion of the membrane lining the palate, showing 

 the teeth, and hard granules attached to it ; enlarged. 



Figure 4a. — The same specimen. Two of the granules from the membrane lining the 

 mouth ; enlarged 18 diameters. 



Figure 5. — The same specimen. Another portion of the lining membrane of the pal- 

 ate; enlarged. 



Figure 6. — Architeuthis Harveyi V. (No. 24). Teeth of odontophore ; a, median; J, 

 inner-lateral ; c, c', and d, from two outer lateral rows; enlarged about 24 diameters. 

 Drawn from detached teeth. 



Figure 7. — The same specimen. Portion of radula, showing most of three transverse 

 rows of teeth ; enlarged 18 diameters. 



Figure 8. — The same specimen. Otolith; a, side view; b, front view; much enlarged. 

 All the figures are camera-drawings by the author. 



Plate VI. 



Figure 1. — Architeulhis Harveyi V. (No. 24). Young. Pharynx and beak, with odon- 

 tophore ; o, oesophagus ; natural size. 



Figure 2. — The same. Distal part of tentacular-arm, with club ; natural size. 



Figures 3 and 3a. — The same. Segment from distal portion of left arm of the third 

 pair of sessile arms, front view ; 3a, the same, side view ; natural size. 



Figure 4. — The same. Basal portion of right arm, of second pair. Front view; 

 natural size. 



Plate VII. 



Figure I. — Architeuthis princeps V. Side view. Restored mostly from No. 13; £ 6 natu- 

 ral size. 



Figure 2. — Sthenoteuthis ptcropus V. Side view of the specimen from Bermuda ; & natu- 

 ral size. 



Figure 2a. — Caudal fin of the same specimen. Dorsal view ; £ natural size. 



