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. Rep. Mammals, 1857, 149. 

 Muatela canadensis, ScHREBER, Saugt. Ill, 1778, 492 ; lab. cxxxiv. (Pekan of BufTon.) 



AcD. & Bach. .\. A. Quad. I, 1849, .•i07 ; pi. xli. 



Sp. Ch — Legs, belly, tail, and hinder part of back, black ; the back with an increasing proportion of grayish white to the 

 head. Length, over two feet. Vertebrae of tail exceeding twelve inches. 



Specimens were collected at Fort Dalles, (53,) and Steilacoom, (45.) 



They are found quite plentifully in the thickly wooded districts, along the eastern and, 

 probahly, 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; Piue Marten. 



Mustela americanus, Tubton's Linnaeus, I, 1806, 60. , 



Mustela americana, Baird, Gen. Rep. Mammals, 1857, 152. 



Muslela martes, Jos. Sabine, Zool. App. to Franklin's Journey, 1823, 651. 



Arn. & Bach. N. A. Quad. Ill, 1853, 176 ; pi. cxxxviii, (Huron.) 



Sp. Ch. — Legs and tail blackish. General color reddish yellow, clouded with black ; above becoming lighter towards the 

 liead, which is sometimes white. A broad yellowish patch on the throat, widening below so as to touch the legs. Central line 

 of belly so'iietimes yellowish. Tail vertebraj, 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. 



I«a8t Weasel. 



Putorius vulgaris, Rich. F. E. A. I, 1829, 45. 

 Mustela pusilla, Dekat, N. Y. Zool. 1, 1842, 34; pi. xiv, f. 1. 

 Putorius pusillus, Add. & Bach. N. A. Quad. II, 1851, 100 ; pi. Ixiv. 

 Baird, Gen. Rep. Mammals, 1857, 159. 



Sp. Ch. —Smallest of American weasels. Length about six inches to root of tail. Tail vertebrce one fifth to one-sixth the 

 head and body. The terminal hairs about one-third the vertebrse, 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 OICOGNANII. 



Small Brown Weasel. 



Mustela cico^naiiii, BoNAP. in Fauna Italica, Mamm. 1838. Under head of Mustela boccatnela. 



Putorius cicognanii, Baird, Gen. Rep. Mammals, 1857, 161. 



Mustela fusca, AuD. & Bach., J. A. N. Sc. Philada. VIII, 11, 1842, 288. 



Putorius fuscus,AvD. & Bach., N. A. Quad. Ill, 1853, 234 ; pi. cxiviii. 



Sp. Ch. — Length to tail, 8 inches or less. Tail vertebrae, one-third this length. Black of tail, two-fifths its length. Out- 

 stretched hind feet reach the end of the vertebroe. 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. - 



