=New Mexico=: _San Juan Co._: Blanco, 1 BS; Chuska Mountains, 8 BS. _Rio Arriba Co._: 8 mi. N El Rito, 1; 4 mi. N El Rito, 5; Rim Rock, El Rito, 2; 2 mi. E El Rito, 7,000 ft., 1; 2 mi. SE El Rito, 1; 6 mi. E and 1/2 mi. S Truchas, 8,500 ft., 1; 2 mi. S and 4 mi. W Coyote, 8,100 ft., 1; unspecified, 2. _Taos Co._: 3 mi. N Taos Pueblo, 5 BS; 23 mi. S and 6 mi. E Taos, 8,750 ft., 2. _Union Co._: Emery Peak, 1 BS; Folsom, 3 BS; Sierra Grande, 8 BS; unspecified, 2. _McKinley Co._: Bear Ridge, Zuni Mountains, 9 BS. _Sandoval Co._: Bear Canyon, W foothills, Sandia Mountains, 3 BS; W foothills, near S end, Sandia Mountains, 7 BS. _Santa Fe Co._: San Pedro, 7 BS. _San Miguel Co._: Canadian River, 4 mi. NW Tucumcari, 1 BS. _Valencia Co._: Mount Taylor, San Mateo Mountains, 10 BS. =Oklahoma=: _Cimarron Co._: Kenton, 1 BS. =Eutamias quadrivittatus hopiensis= Merriam _Eutamias hopiensis_ Merriam, Proc. Biol. Soc. Washington, 18:165, June 29, 1905. _Eutamias quadrivittatus hopiensis_, Howell, Jour. Mamm. 3:184, August 4, 1922. _Type._--Female, adult, skull and skin, No. 67768 U. S. Nat. Mus.; from Keams Canyon, Painted Desert, Arizona; obtained on July 27, 1894, by A. K. Fisher. _Diagnosis._--Size medium; dorsal dark stripes tawny; crown Drab-Gray; baculum of same proportions as in _E. q. quadrivittatus_ but smaller. [Illustration: FIG. 2. Localities of specimens examined and probable geographic ranges of the subspecies of _Eutamias quadrivittatus_ and _Eutamias umbrinus_. The symbols for locality records are as follows: circles, precise localities; triangles, localities known only to county. Guide to subspecies: 1. _E. q. quadrivittatus_ 2. _E. q. hopiensis_ 3. _E. u. umbrinus_ 4. _E. u. adsitus_ 5. _E. u. sedulus_ 6. _E. u. inyoensis_ 7. _E. u. nevadensis_ 8. _E. u. fremonti_ 9. _E. u. montanus_] _Description._--_Color pattern_: Head Drab-Gray, with Snuff Brown around margin of crown; facial stripes Sayal Brown with small blackish patches around eye; ears Ochraceous Tawny anteriorly and Pinkish Buff posteriorly; dorsal stripes Tawny, median one sometimes blackish; median pair of dorsal light stripes grayish white, outer pair creamy white; sides Ochraceous Tawny; rump and thighs Cinnamon Buff washed with Pale Smoke Gray; antipalmar and antiplantar surfaces of feet Pinkish Cinnamon; dorsal surface of tail Fuscous Black; ventral surface of tail Ochraceous Tawny, Fuscous Black along margin, Cinnamon Buff along outermost edge; underparts creamy white. _Skull_: As in _E. q. quadrivittatus_. _Baculum_: Same proportions as in _E. q. quadrivittatus_ but smaller. _Comparisons._--See under the account of _E. q. quadrivittatus_.