Feb., 1912. Mammals of Illinois and Wisconsin — Cory. 375 



Measurements — Total length (male), about iS in. (455 mm.); tail 

 vertebrae, about 6.50 in. (164 mm.); hind foot, 2.15 in. (55 mm.). 

 Female smaller; average length about 15 in. (380 mm.); tail, about 

 5 in. (125 mm.). 



There are two specimens in the collection of the Milwaukee Public 

 Museum (one in winter and the other in summer pelage) from Prescott, 

 Pierce County, Wisconsin, which I have provisionally referred to this 

 subspecies. In the coloration of the under parts in summer pelage they 

 resemble spadix, but they are by no means typical and the cranial 

 characters and comparative length of the tail strongly suggest inter- 

 gradation. Unfortunately very few Wisconsin specimens are available 

 for examination and I have seen but two examples in summer pelage. 

 When a good series of Weasels can be secured from northern Wisconsin 

 it is not unlikely that the range of F. n. occisor may be found to extend 

 into that region. 



Putorius cicognanii (Bonaparte). 

 Bonaparte's Weasel. 



Mustela cicognanii Bon.\p.\rte, Inconogr. Fauna Ital., I, fasc. XXII, 1838, p. 4. 



Putorius cicognanii Miles, Rept. Geol. Surv. Mich., I, i860 (1861), p. 220 (Mich- 

 igan). Strong, Geol. Wis., Surv. 1873-79, !> 1883, p. 437 (Wisconsin). 

 Snyder, Bull. Wis. Nat. Hist. Soc, II, 1902, p. 125 (Wisconsin). Adams, Rept. 

 State Board Geol. Surv. Mich., 1905 (1906), p. 130 (Michigan). Jacksox, Bull. 

 Wis. Nat. Hist. vSoc, VI. 1908, p. 28 (Wisconsin). 



Type locality — Northeastern North America ; exact locality unknown . 



Distribution — Northern United States and southern Canada, in the 

 East south to Wisconsin and Michigan and in the mountains of 

 Pennsylvania; in the West its range extends in Canada to the 

 Pacific Coast and in the United vStates in the Rocky Mountains at 

 least to Colorado. 



Special characters — Smaller than noveboracensis and tail shorter. In 

 summer the whitish portion of inner sides of hind feet usually inore or 

 less tinged with yellow. 



Description — In summer: Upper parts and legs dark brown; under 

 parts generally including the upper lip, white, more or less washed 

 with yellowish; toes whitish; inner sides of hind feet whitish, more or 

 less tinged with yellow; end of tail black; no brow^n spot back of 

 angle of mouth. 



In winter: Entire pelage, except end of tail, white, washed with 

 yellowish on rump and under parts; end of tail black. The size is 

 variable and the female is much smaller than the male. 



