Fes., 1912. Mammats oF ILLINOIS AND WIscoNSIN— Cory. 387 
Mustela pennanti ErxLEBen. 
FisHer. PEKAN. PENNANT’s MARTEN. 
[Mustela] pennanti ERXLEBEN, Syst. Regni Anim., I, 1777, p. 470. 
Mustela Canadensis LapuaM, Trans. Wis. State Agr. Soc., II, 1852 (1853), p. 338 
(Wisconsin?). KeEnwnicort, Trans. Il. State Agr. Soc., I, 1853-54 (1855), p. 578 
(Cook Co., Ilinois). 
Mustela pennantii Kennicort, Agr. Rept. for 1858, U. S. Patent Office Rept., 1859, 
p. 241 (northern Illinois). Tuomas, Trans. Ill. State Agr. Soc., IV, 1859-60 
(1861), p. 654 (Illinois). Mus, Rept. Geol. Surv. Mich., I, 1860 (1861), p. 220 
(Michigan). StrronG, Geol. Wis., Surv. 1873-79, I, (1883), p. 436 (Wis- 
consin). 
Mustela pennanti Herrick, Geol. & Nat. Hist. Surv. Minn., Bull. No. 7, 1892, p. 103 
(Minnesota). Ruoaps, Proc. Acad. Nat. Sci. Phila., 1896 (1897), p. 198 (Ten- 
nessee). Haun, Ann. Rept. Dept. Geol. & Nat. Resources Ind., 1908 (1909), 
p. 587 (Indiana). 
Type locality — Eastern Canada. 
Distribution — Northern North America from the Atlantic nearly to 
the Pacific and from Hudson Bay to the region of the Great Lakes 
and further south in the Allegheny Mountains; in the Northwest 
its range extends to at least latitude 60°; replaced on the Pacific 
Coast by M. pacifica, a closely allied form. 
Description — Larger and darker than M. americana, and lacking the 
pale throat patch; ears rather low and rounded; under parts, legs, 
end of tail and lower portion of back very dark brown or blackish 
brown; head and shoulders grizzly gray, much lighter than the 
rest; lining of ear whitish; claws brownish white; tail bushy. The 
females are smaller than the males. 
Measurements — Total length, about 35 in. (890 mm.); tail vertebre, 
13.50 in. (343 mm.); hind foot, 4.25 in. (108 mm.). 
Although for many years the Fisher has been supposed to be extinct 
in Wisconsin, it is by no means improbable that a few individuals may 
still exist in some of the extreme northern counties. I am informed by 
hunters that it is occasionally taken in the wilder portions of the Mich- 
igan peninsula and there are three specimens from Michigan in the 
Field Museum collection; two from Park Siding, Iron Co., taken in 
1900, and another from Amasa, Iron Co., taken in 1898. Mr. Charles 
Brandler informs me that he saw a Fisher which had been killed by 
William Robinson in November, 1900, south of Iron Mountain between 
that place and Pembine, Florence Co., Wisconsin, the locality being 
either actually in Wisconsin or very close to the state line. In early 
days its range extended south to northern Illinois. Kennicott records 
it from Cook Co., Illinois, and says: ‘The Fisher used frequently to 
