FEB., 1912. MAMMALS OF ILLINOIS AND WISCONSIN CORY. 381 



Putorius rixosus allegheniensis (RHOADs). Type locality Beallsville, Washington 

 Co., Pennsylvania. Description as previously given. 



Putorius longicauda spadix BANGS. (Proc. Biol. Soc. Wash., X, 1896, p. 8.) Type 

 locality Fort Snelling, Hennepin Co., Minnesota. Similar to longicauda, but 

 darker in summer. Average length of males about 18 inches; tail vertebrae 

 about 6.50 inches; upper parts somewhat more walnut brown than novebora- 

 censis in summer, and lacking saffron yellow wash on rump and base of tail in 

 winter; tail decidedly longer; feet whitish. 



Genus MUSTELA * Linn. 



Mustela Linnaeus, Syst. Nat., X ed., I, 1758, p. 45. Type Mustela 



ntartes Linn. 



Body long and thickly furred; tail bushy; feet digitigrade; soles of 

 feet furred, with naked pads; lower carnassial or sectorial tooth with 

 small internal tubercle on largest cusp; 5 upper cheek teeth (molars 

 and premolars) and 6 lower in each side of jaws (the Minks and Weasels 

 have less); skull flattened; bull'ae flattened; auditory meatus some- 

 what tubular. 



Dental formula: I. ^, C. , Pm. ^^, M. ^=38. 

 3-3 i-i 4-4 2-2 



KEY TO THE SPECIES. 



A. Total length less than 30 inches; tail vertebrae less than 10 inches; ears pointed. 



MARTEN. Mustela americana, p. 381. 



B. Total length more than 30 inches ; tail vertebra more than 10 inches ; ears rounded. 



FISHER. Mustela pennanti, p. 387. 



Mustela americana TURTON. 

 MARTEN. PINE MARTEN. AMERICAN SABLE. 



[Mustela] americanus TURTON, Linnaeus System of Nature, I, 1806, p. 60. 



Mustela ntartes LAPHAM, Trans. Wis. State Agr. Soc., II, 1852 (1853), p. 338 (Wis- 

 consin). KENNICOTT, Trans. 111. State Agr. Soc., 1853-54 (1855), p. 578 (Cook 

 Co., Illinois). 



Mustela americana KENNICOTT, Agr. Kept, for 1858, U. S. Pat. Office Rept., 1859, 

 p. 242 (Illinois). THOMAS, Trans. 111. State Agr. Soc., 1859-60 (1861), p. 654 

 (Illinois). MILES, Rept. Geol. Surv. Mich., I, 1860 (1861), p. 220 (Michigan). 

 STRONG, Geol. Wis., Surv. 1873-79, I, 1883, p. 436 (Wisconsin). HERRICK, 

 Geol. & Nat. Hist. Surv. Minn., Bull. No. 7, 1892, p. 104 (Minnesota). MILLER, 

 Proc. Bost. Soc. Nat. Hist., XXVIII, 1897, p. 42 (Nepigon, Ontario). 



* According to Thomas (Proc. Zopl. Soc. Lond., 1911, p. 139) the name Mustela 

 commonly used for this genus must give place to Maries. 



