436 REPORT OP COMMISSIONER OF FISH AND FISHERIES. [226] 



EXPLANATION OF THE PLATES. 



All the figures were drawn from nature by Mr. J. H. Einerton, except when other- 

 wise stated. 



Plate I. 



Figure 1. — Architeuthis Harveyi (No. 5). Head and ai'ins ; y natural size. From a pho- 

 tograph of the specimen when freshly caught. The back of the head rests upon an 

 oar, so as to cause the beak to protrude, while the arms hang down in a reversed 

 position. The diameter of the bathing tub was 38.5 inches: a, left, and a', right 

 ventral arms; b, left, and b', right arms of the third pair; c, left, and c', right arms 

 of the second pair; d', right dorsal arm, mostly concealed behind the others; e, left, 

 and e', right tentacular-arms, folded several times over the oar; i to iv, the 'club'; 

 i to ii, the 'wrist'; ii to Hi, the part bearing large suckers; Hi to iv, the terminal 

 division ; o, the beak. 



Figure 2. — Part of the body and caudal fin of the same specimen ; I natural size. From 

 a photograph made at the same time with the preceding; u, mantle cut open ; t, tip 

 of tail ; b, right, and 1, left lateral lobes of the caudal fin. 



Plate II. 



Figure 1. — Architeuthis Earveyi. — A restoration, ^>- natural size, based on the preced- 

 ing figures and on the specimens received. (See note, p. 9.) 



Plate III. 



Figure 1. — Architeuthis Harveyi (No. 5). Upper mandible ; natural size. 



Figure 2. — Lower mandible of same ; natural size ; lacks a small piece at a. 



Figure 3. — Posterior part of the 'pen' of the same specimen; } natural size. The 



dotted lines indicate missing parts. 

 Figures 4, 4a. — Architeuthis Harveyi. (Specimen No. 4.) The two sides of the broken 



lower mandibles; natural size. 

 Figures 1 and 2 were drawn bv Mr. J. H. Blake, from the alcoholic specimens ; figure 



3 was restored and drawn by the author ; figures 4 and 4a are camera-drawings by 



the author. 



Plate IV. 



Figure 1.— Architeuthis Harveyi (No. 4). One of the larger suckers from the tentacular 

 arms; natural size. From a dried specimen. 



Figure la. — Portion of the marginal ring of the same sucker, seen from the inside; en- 

 larged. 



Figure 2.— The same. (No. 24.) Distal part of arm. Front view; natural size. 



Figure 2a.— The same. Front view. 50th sucker of 2nd pair of arms ; enlarged 12 

 diameters. The marginal scales are destroyed on one side. 



Figure 3, 3a.— Architeuthis Harveyi V. (No. 2). Horny ring of one of the marginal 

 suckers of the club ; 3, side view ; 3a, the same, front view ; enlarged 3 diameters. 



Figure 4.— Architeuthis Harveyi (No. 5). Suckers of tentacular-club ; side view, natu- 

 ral size; a, one of the larger suckers ; b, one of the marginal suckers. 



Figure 5.— The same specimen. Horny marginal ring of one of the suckers from near 

 the base of ventral arm ; enlarged 2 diameters. 



Figures 6 and 6a. — The same specimen. One of the largest and least oblique of the 

 horny rings from a sucker near the base of one of the lateral arms; top and side 

 views; enlaiged li diameters. 



