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 lofigicauda, but 

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

 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 decidedlj' longer; feet whitish. 



Genus MUSTELA * Linn. 



Mustela Linneeus, Syst. Nat., X ed., I, 175S, p. 45. Type M us tela 



martes 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 low^er in each side of jaws (the Minks and Weasels 

 have less); skull flattened; bullae flattened; auditory meatus some- 

 what tubular. 



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

 i-2, i^i 4-4 2-2 



KEY TO THE SPECIES. 



A. Total length less than 30 inches; tail vertebra 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, Linna-us System of Nature, I, 1806, p. 60. 



Mustela martes 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. Rept. 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, i860 (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. Zool. Soc Lond., 191 1, p. 139) the name Mustela 

 commonly used for this genus must give place to Martes. 



