32 SEALS. 



upper lateral, deciduous; canines l ~, upper elongate, lower conical 

 like the grinders; grinders |~, small, rather compressed. Rapp, 

 Butt. Sci. Nat. xvii. 280. 



Odobenus, Brisson, Reg. Anim. 48. 



Rosmarus, Scopoli, Introd. H. N. 1777- 



Trichechus, Linn. Syst. Nat. i.; Nilsson, Vet. Akad. Handl. 1837 ; 

 Scand. Fauna, t. ; Wiegm. Arch. vii. 322; Fleming, Phil. 

 Zool. ii. 187; Rapp. Bull. Sci. Nat. xvii. 280; Fischer, Syn, 

 678 ; F. Cuvier, Diet. Sci. Nat. lix. 465, 1829. 



(Tribe) Trichecina, Turner, Proc. Z. Soc. 1848, 88. 



Morse, F. Cuvier, Dent. Mam. 233. t. 95, 1825. 



Trichehidse 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, ii. 319, 320. 



1. TRICHECHUS ROSMARUS. MORSE. 



Pale brown ; when young black, when old nearly white. 



Trichechus Rosmarus, Linn. S. N. i. 39 ; Mutter, 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, Illiger. 



Rossmarus, 01. 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. i. 38. 

 Arctic Wallrus, Penn. Syn. 335 ; Cook's Last Voy. iii. 262. t. 8. 



fig. ; Shaw, Zool. i. 234. t. 68, 69 ; Nat. Misc. t. 76. 

 Morse ou la Vache marine, Bvff. H. N. xiii. 353, 415. t. 54, 55. 

 Morsch, J. G. Gmelin, Siber. iii. 165. 

 Wallross, Mart. Spitzb. 78. t. P. f. 6; Egede, Green. 61. fig. ; 



Steller, Kamtsch. 106. 

 Inhab. North Sea. Mus. Brit, adult. 



a. Adult : stuffed. North Sea. Greenland ? 



b. Skull : adult. North Sea. 



c. Skull : adult. North Sea. Presented by General* Thomas 

 Hardwicke. 



