ODOB^NUS OBESUS PACIFIC WALRUS. 147 



ago. What efforts liave been made, if any, since that date, 

 I know not, but the skill, energy, and money which, some 

 fifteen years ago, placed a White Whale {Beluga catodon) in the 

 Aquarial Gardens of Boston, and has recently safely brought 

 another to jS'ew York, and has taken others alive into the inte- 

 rior nearly to Cincinnati (the latter dying, however, before quite 

 Teaching that city), ought certainly, if directed toward securing 

 living specimens of the Walrus for public exhibition, meet with 

 easy success. As to the influence of a change from an Arctic 

 climate to mild temperate latitudes, it may be well to recall the 

 fact that not many centimes since the natural habitat of the 

 Walrus extended to the southern shores of Nova Scotia and 

 Cape Breton. 



ODOB^NUS OBESUS, {III.) Allen. . ' 

 Pacific Walrus. 



*'Wallross, Steller, Beschxeib. von dem Laude Kamtscli., 1774, 106." 



JSea Horse, Cook's Third Voyage, ii, 1784, 456, jA. lii; ibid., abridged ed., 



iii, 40. 

 Tricheclnis rosmarus, Shaw, Gen. ZooL, i, 1800, 234 (iupart), fig. 68* (from 



Cook). Vox SCHRENCK, Ecisen im Amur-Lande, i, 1859, 179, (in 



part). Leidy, Trans. Amer. Phil. Soc, xi, 1860 (in part). VoN 



MiDDENDORFE, Sibirische Eeise, iv, 1867, 934 (in part). Also in 



part of most recent authors. 

 Trichechus obesus, Illiger, Abhandl. d. Berlin. Akad. (1804-11), 1815, 64, 



70, 75 (distribution). 

 Trichechus cUvergetis, Illiger, Abhandl. d. Berlin. Akad. (1804-11), 1815, 68 



(based on Cook's description and figure of the Pacific Walrus). 

 Rosmarus obesus, Gill, Proc. Essex Inst., v, 1866, 13 (in part only). Dall, 



Alaska and its Resources, 1870, 503, 577. Scammox, Marine Mam., 



1874, 176 (figure of animal). 

 Trichechus cookii, Fremery, Bijdrag. tot de uaturkuund. Wetensch., vi, 



1831, 385. 

 Bosmarus cooM, Gill, Intern. Exh., 1876, Anim. Resources U. S., No. 2, 1876, 



4 ("Pacific Walrus"; no description); Johnson's New Univ. CycL, 



iii, 1877, 1725 (no description). 

 Bosmarus arcticus, Pallas, Zool. Rosso-Asiat., 1831, 269, "i)ls. xxviii, 



xxix." Elliott, Cond. of Afiairs in Alaska, 1875. 121, 160 



(Prybilov Islands). 

 Bosmarus trichechus, Gill, Johnson's New Univ. Cyclop., iii, 1877, 633 (in 

 part only). 



External Characters and Skeleton. Similar in size 

 (or possibly rather larger) and probably in general contour 

 (though commouly depicted and described as more robust or 

 thicker at the shoulders) to the Odohcenus rosmarus, but quite 

 different in its facial outline. The tusks are longer and thinner, 



