92 
U S. P R. R. EXP. AND SURVEYS—47TH PARALLEL. 
MUSTELA PENNANTII, Erxl. 
Fisher; Black Cat. 
Mustela pennantii, Erxleben, Syst. An. 1777, 479. (Based on Fisher of Pennant.) 
Baird, Gen. Hep. Mammals, 1857, 149. 
Mustela canadensis, Schreber, Siiugt. Ill, 1778, 492 ; tab. cxxxiv. (Pekan of Buffon.) 
Add. & Bach. Y. A. Quad. I, 1849, 3U7 ; pi. xli. 
Sr. Cii —Legs, belly, tail, and binder part of back, black ; the back with an increasing proportion of grayish white to the 
head. Length, over two feet. Vertobra of tail exceeding twelve inches. 
Specimens were collected at Fort Dalles, (53,) and Steilacoom, (45.) 
They are found quite plentifully in tlie thickly wooded districts, along the eastern and, 
probably, the western base of the Cascade Range, on the parallel of Fort Dalles. Their favorite 
localities are forests, in the neighborhood of streams. 
MUSTELA AMERICANA, Turton. 
American Sable; Fine Marten. 
Mustela americanus, Turton’s Linnaeus, I, 1806, 60. 
Muslela americana, Baird, Gen. Rep. Mammals, 1857, 152. 
Mustela martes, Jos. Sabine, Zool. App. to Franklin’s Journey, 1823, 651. 
Aud. & Bach. N. A. Quad. HI, 1853, 176 ; pi. cxxxviii, (Huron.) 
Sr. Cii. —Legs and tail blackish. General color reddish yellow, clouded with black ; above becoming lighter towards the 
head, which is sometimes white. A broad yellowish patch on the throat, widening below so as to touch the legs. Central line 
of belly sometimes yellowish. Tail vertebrae, about 3 the head and body. Outstretched hind feet reach about to the middle of 
the tail with the hairs. Feet densely furred. 
Specimens were obtained from Cape Flattery, (139;) Snoqualme river, 0. T., (118,) and 
Fort Boise, (26.) 
PUTORIUS PUSILLUS. 
Least Weasel. 
Putorius vulgaris, Rich. F. B. A. 1, 1829, 45. 
Mustela pusilla, Dekay, N. Y. Zool. I, 1842, 34; pi. xiv, f. 1. 
Putorius pusillus, Aud. & Bach. N. A. Quad. II, 1851, 100 ; pi. lxiv. 
Baird, Gen. Rep. Mammals, 1857, 159. 
Sp. Ch. —Smallest of American weasels. Length about six inches to root of tail. Tail vertebrae one fifth to one-sixth the 
head and body. The terminal hairs about one-third the vertebrae, which do not exceed two inches. Tail slender, not tufted 
at the tip. Above, almost liver brown ; beneath, white. No distinct black tip to the tail, though this is sometimes darker. 
Specimen collected at Steilacoom. 
PUTORIUS CICOGNANII. 
Small Brown Weasel. 
Mustela cicognanii, Bonap. in Fauna Italica, Mamm. 1838. Under head of Mustela boccamela. 
Putorius cicognanii, Baird, Gen. Rep. Mammals, 1857, 161. 
Mustela fusca, Aud. & Bach., J. A. N. Sc. Philada. VIII, it, 1842, 288. 
Putorius fuscus, Aud. & Bach., N. A. Quad. Ill, 1853, 234 ; pi. cxlviii. 
Sp. Cii. —Length to tail, 8 inches or less. Tail vertebra, one-third this length. Black of tail, two-fifths its length. Out¬ 
stretched hind feet reach the end of the vertebrae. In summer, brown above, whitish beneath ; edge of upper lip white. In 
winter, white ; tail with black tip. 
One specimen collected at Puget’s Sound. 
