az SEALS. 
upper lateral, deciduous; canines ;; 1 upper elongate, lower conical q 
like the grinders ; grinders z, A rather compressed.— Rapp. — 
Bull. Sci. Nat. xvi. 280. 
Odobenus, Brisson, Reg. Anim. 48. 
Rosmarus, Scopoli, Introd. H. N. 1777. 
Trichechus, Linn. Ayst Nat.i.; Nilsson, Vet. Akad. Hendle 1837 ; 
Scand. Fauna, t. ; Wiegm. Arch. vii. 322; Fleming, Phil. 
Zool. ui. 187 ; Rapp. Bull. Sci. Nat. xvii. 280 ; Fischer, Syn. 
678; F. Pacter, Dict. Sci. Nat. lix. 465, 1829. 
(Tribe) Trichecina, Turner, Proc. Z. Soc. 1848, 88. 
Morse, F. Cuvier, Dent. Mam. 233. t. 95, 1825. 
Trichehide seu Campodontia, J. Brookes, Mus. Catal. 37, 1828. 
M. F. Cuvier thinks the Morse forms an isolated family, distin- 
guished by the great breadth of its muzzle, the length of its upper 
canines, and the form of its teeth. It has the same organs of 
movement and intestinal canal as the Seals.—D. S. N. lix. 465. 
Professor Baer illustrates his paper with a map, showing the 
geographical distribution of the Walrus in the Arctic Sea. 
For the chase and uses of the Morse, see Wrangel, Nord Si- 
beria, 1. 319, 320. 
1. TricHEcHUs Rosmarus. Morse. 
Pale brown; when young black, when old nearly white. 
Trichechus Rosmarus, Linn. S. N. 1. 39; Miller, Prod. Z. D. 1; 
Schreber, Saugth. 262. t. 79; Nilsson, Wiegm. Arch. vii. 322 ; 
Blainv. Osteog. Phoca, t. 1 & 4; Fischer, Syn. 243; Baer, 
Mem. Acad. Petersb. iv. 97. t. 4, 1838; Mem. Mus. vii. t. 9. 
Rosmarus arcticus, Pallas, Z. R. A. i. 269. 
T. obesus et T. divergens, I/liger. 
Rossmarus, Ol. Mag. Sept. 757. fig.; Gesner, Aquat. 249, 250. fig. 
Walross, Nilsson, Scand. Fauna, i. 388. 
Walruss, Bell, Brit. Quad. 282. 
Phoca Rosmarus, Linn. S. N. ed. 10. 1. 38. 
Arctic Wallrus, Penn. Syn. 335; Cook’s Last Voy. iii. 262. t. 8. 
fig.; Shaw, Zool. 1. 234. t. 68, 69; Nat. Misc. t. 76. 
Morse ou la Vache marine, Buff. Hi. N. xiii. 353, 415. t. 54, Bay 
Morsch, J. G. Gmelin, Siber. ii. 165. 
Wallross, Mart. Spitzb. 78. t. P. f.b; Egede, Gren. 61. fig. ; 
Steller, Kamtsch. 106. 
Inhab. North Sea. Maus. Brit. adult. 
a. Adult: stuffed. North Sea. Greenland ? 
b. Skull: adult. North Sea. 
c. Skull: adult. North Sea. Presented by General Thomas 
Hardwicke. 
