=North Dakota.= _Walsh County_: Grafton, 15 (3[60], 1[93], 5[2], 2[14], 1[74], 1[1], 1[76]). _McHenry County_: 4 and 4-1/2 mi. N Upham, 2. _Wells County_: 1[36]. _Morton County_: Mandan, 1[60]. =Ontario.= Algoma Dist: Tatnall, near Oba, 1[86]. Moose Factory, 1[75]. =Quebec.= Island S of Comb Hills, James Bay, 1[9]. _Saguenay County_: Natashkwan, 1. =Saskatchewan.= Osler, 1[75]; "near Regina," 1[77]; Dollard, 2[31]; Shaunavon (and "near" and 1 mi. NE), 9[77]; Klintowel P. O. (about 15 mi. N of Eastend), 1[77]; Eastend and "near" Eastend, 2[77]. =Mustela rixosa allegheniensis= (Rhoads) Least Weasel Plates 14, 15 and 41 _Putorius allegheniensis_ Rhoads, Proc. Acad. Nat. Sci. Philadelphia, 1900:751, March 25, 1901. _Putorius rixosus allegheniensis_, Cory, Mamm. Illinois and Wisconsin, p. 378, 1912. _Mustela allegheniensis_, Miller, U. S. Nat. Mus. Bull., 79:96, December 31, 1912. _Mustela rixosa allegheniensis_, Swenk, Journ. Mamm., 7:328, November 23, 1926. _Type._--Probably male adult, skin and skull, no. 6195, Acad. Nat. Sci. Philadelphia; near Beallsville, Washington Co., Pa.; about 1885 or 1886; obtained by Robert Hawkins. Type not seen by me. _Range._--Wisconsin, northern Illinois, northern Indiana, Michigan, Ohio, Pennsylvania east to Dauphin County and south in the mountains to northwestern North Carolina. See figure 28 on page 180. _Characters for ready recognition._--Distinguished from _M. r. rixosa_ by three average differences, namely, darker color, shorter tympanic bullae, and smaller size of males; from _M. r. campestris_ in smaller size: hind foot less than 25 in males and less than 22 in females; in males total length less than 216 and tail averaging less than 34, color averaging darker; from _M. frenata_ and _M. erminea_ of same region by basilar length less than 31, tail less than 45, and lacking black pencil. _Description._--_Size._--Male: An adult or subadult from Fair Oaks, Pa., a subadult from Finleyville, Pa., and an adult from Huttonsville, W. Va., measure, respectively as follows: Total length, 206, 194, 191 (average 197); length of tail, 37, 32, 28 (32); length of hind foot, 23 in each. An adult from Roanoke, Indiana, weighs 40.6 grams. Female: Two young from Leasuresville, Pa., and Middle Paxton Twp., Pa., measure, respectively, as follows: Total length, 188, 172; length of tail, 33, 30; length of hind foot, 20.5, 21. An adult from Monroeville, Ohio, weighs 40.5 grams and a young individual from Middle Paxton Twp., Pa., 39.3 grams, and a subadult from Swan Creek Exp. Station, Allegan Co., Mich., weighs 49 grams.