ODOB^ENUS OBESUS PACIFIC WALRUS. 147 



ago. What efforts have 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 New York, and has taken others alive into the inte- 

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

 reaching 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 centuries since the natural habitat of the 

 Walrus extended to the southern shores of Nova Scotia and 

 Oape Breton. 



ODOB^ENUS OBESUS, (HI) Allen. 

 Pacific Walrus. 



"Wallross, STELLER, Beschreib. von dem Lande Kamtsch., 1774, 106." 



Sea Horse, COOK'S Third Voyage, ii, 1784, 456, pi. Iii; ibid., abridged ed., 



iii, 40. 

 Tricheclms rosmarus, SHAW, Gen. Zool., i, 1800, 234 (in part), fig. 68* (from 



Cook). VON SCHRENCK, Eeisen im Amur-Lande, i, 1859, 179, (in 



part). LEIDY, Trans. Amer. Phil. Soc., xi, 1860 (in part). VON 



MIDDENDORFF, Sibirische Reise, iv, 1867, 934 (in part). Also in 



part of most recent authors. 

 Tricliechw obesus, ILLIGER, Abhandl. d. Berlin. Akad. (1804-11), 1815, 64, 



70, 75 (distribution). 

 TricJiechus divergent, ILLIGER, Abhandl. d. Berlin. Akad. (1804-11), 1815, 68 



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

 Bosmarus obesus, GILL, Proc. Essex Inst., v, 1866, 13 (in part only). BALL, 



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



1874, 176 (figure of animal). 

 Tricliechm coolfii, FREMERY, Bijdrag. tot de naturkuund. Wetensch., vi, 



1831, 385. 

 Rosmarus 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). 

 Eosmarus arcticus, PALLAS, Zool. Rosso-Asiat., 1831, 269, "pis. xxviii, 



xxix." ELLIOTT, Cond. of Affairs in Alaska, 1875. 121, 160 



(Prybilov Islands). 



Eosmarus tricliechus, 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 commonly depicted and described as more robust or 

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

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



