MILLER AND REHN : NORTH AMERICAN MAMMALS. 
31 
Sciurus carolinensis hypophaeus Merriam. 
1886. Sciurus carolinensis hypophaeus Meeriam, Science, 
VIII, p. 351. April 16, 1886. 
Type locality. — Elk River, Sherburne County, Minnesota. 
* Sciurus carolinensis leucotis (Capper). 
1830. Sciurus leucotis Capper, Zool. journ., v, p. 206. 
1877. Sciurus carolinensis var. leucotis Alley, Monogr. N. 
Amer. rodentia, p. 701. August, 1877. 
1885. Sciurns carolinensis leucotis True, Proc. U. S. nat. 
mus., VII (1884), p. 595. 1885. 
Type locality. — Region between York and Lake Simcoe, 
Ontario, Canada. 
Subgenus Otosciurus Nelson. 
1899. Otosciurus Nelsox, Proc. Washington acad. sci., i, p. 28. 
May 9, 1899. Type.— Sciurus aherti Woodiiouse. 
* Sciurus aberti Woodhouse. 
1852. Sciurus Woodhouse, Proc. acad. nat. sci. Phila., 
VI, p. 220. December, 1852. 
1885. Sciurus aherti Trup:, Proc. U. S. nat. mus., vii (1884), 
p. 595. 1885. 
Type locality. —- San Francisco Mountain, Coconino County, 
Arizona. 
Sciurus aberti ferreus True. 
1894. Sciurus aherti Trup:, Diagnoses of new North 
American mammals, p. I. April 26, 1894. (Reprint: Pioc. 
U. S. nat. mus., xvii, p. 241. November 15, 1894). 
1900. \_Sciurus al)erti~\ ferreus True, Proc. biol. soc. W^asli- 
ington, XIII, p. 183. November 30, 1900. 
Typp: locality. — Loveland, Larimer County, Colorado. 
Sciurus durangi (Thomas). 
1893. Sciurus aherti duratiyi Thomas, Ann. and mag. nat. 
hist., 6th ser., xi, p. 49. January, 1893. 
1899. Sciurus durangi Nelsox, Proc. Washington acad. 
sciences, i, p. 85. May 9, 1899. 
Type locality. — Ciiidad ranch, one hundred miles west of 
Durango City, State of Durango, Mexico. 
