ZOOLOGY—MAMMALS. 
03 
PUTORIUS RICHARDSONII. 
Muslela richardsonii, Bonap. in Charlesworth’s Mag. N. H. II, Jan. 1838, 38. (“M. erminea, Rica. F. B. A.”) 
Putorius richardsonii, Bp. in Rich. Zool. Beechey’s Voyage, 1839, Mammalia, 10. 
Baird, Gen. Rep. Mammals, 1857, 164. 
Putorius agilis, Add. & Bach., N. A. Quad. Ill, 1853, 184 ; pi. cxl. 
Sp Ch. —Length to tail, 9 inches or less. Tail vertebras about half this length. Black of tail nearly one-half to one-third 
its length. Outstretched hind feet reach to the middle of the tail (with hairs) or a little beyond. In summer, dark chestnut 
brown above ; whitish beneath. Whole upper jaw brown. In winter, white. Tail with black tip. 
Specimen collected at Fort Steilacoom, August 18, 1854. (20.) 
Measurement when fresh. 
Around the ears.... 3 inches. 
From front of fore foot to the end of hind foot extreme extension... 12£ “ 
Total from snout to tip of tail... 15 “ 
Tail. 6 “ 
Forearm....... J “ 
Around chest behind shoulders... 3| “ 
PUTORIUS LONG-ICAUDA. 
Muslela longicauda, Bonap. in Charlesworth’s Mag. N. H. II, Jan. 1838, 38. (Based on Richardson’s description.) 
Putorius longicauda, Rich, (ex Bonap.) Zoology Beechey’s Voyage to Pacific, 1839. Mammalia, 10. 
Baird, Gen. Rep. Mammals, 1857, 169. 
Mustela ( Putorius ) erminea, Rich. F. B. A. I, 1829, 46. (“Carlton House variety, with long tail.”) 
Sp. Ch. —Length to tail about eleven inches. Tail vertebra about half this length. Black of tail about one-fourth its length. 
Above, light olivaceous brown ; beneath, brownish yellow ; edge of upper lip and chin white. In winter, white ; tail with black 
tip. Light space on b?lly much wider than in P. noveboracensis. Muzzle broad. 
Milk river, Neb., August, 1853. 
PUTORIUS YISON. 
Common Mink. 
“ Muslela lutreola, Forster, Philos. Trans. LXII, 371.” 
“ Sabine, in Franklin’s Narr. 1823, 652.” 
Mustela vison, Brisson, Quad. 1756, 246. 
Putorius vison, Gapper, Zool. Jour. V, 1830, 202. 
Dekay, N. Y. Zool. I, 1842, 37; pi. xi, f. 1. 
Aud & Bach. N. A. Quad. I, 1849, 250 ; pi. xxxiii. 
Baird, Gen. Rep. Mammals, 1857, 177. 
Sp. Ch — Tail about half as long as the body. General color, rather dark brownish chestnut. Tail nearly black. End of 
chin white, but not the edge of the upper jaw. 
Disputed island, near Vancouver’s island, (64) ; Klamath Lake; Fort Steilacoom, August 10, 
(18;) Cape Flattery, (137, 146, 138, 140.) 
ENHYDRA MARINA, F1 e m . 
Sea Otter. 
Baird, Gen. Rep. Mammals, 1857, 189. 
The imperfect skin collected was procured at Steilacoom, although I could not learn its precise 
locality. Almost all the skins of this otter now gathered by the Hudson Bay Company, come 
from the Indians north of the 50th parallel. 
