UROCYON. 477 
and inner sides of thighs white; outer sides of legs ochraceous buff; 
feet buffy white; ears ochraceous buff, inner surface buffy white; tail 
gray with a black dorsal stripe and tip, beneath buffy. 
Measurements. Total length, 720; tail vertebrze, 240; hind foot, 
g5. Skull: greatest length, 102; basal length, 94.4; zygomatic width, 
53; interorbital breadth, 20.4; width of postorbital processes, 30.4; 
mastoid breadth, 36.4; median palatal length, 47; median length of 
nasals, 30; length of upper tooth row, 41; length of mandible, 74; 
length of lower tooth row, 46. 
cinereo-argenteus californicus (Urocyon), Mearns, Proc. U.S. Nat. 
Mus., 1897, p. 459. Elliot, Syn. N. Am. Mamm., rgor, p. 308. 
CALIFORNIA Gray Fox. 
Type locality. San Jacinto Mountains, Riverside County, Cali- 
fornia. Altitude, 8,000 feet. 
Geogr. Distr. Lower California, Mexico, to Washington. 
Genl. Char. Similar to U. cinereo-argenteus, with larger ears and 
grayer, less fulvous coloring. 
Color. Like U. cinereo-argenteus, with the color of the back 
about the same, but the coloration as a whole is paler, and the Cali- 
fornia animal lacks the black down the fore legs. 
Measurements. ‘Total length, 890; tail vertebrx, 330; hind foot, 
120; ear from crown, 85. (Mearns,l.c.) Skull: occipito-nasal length, 
117; total length, 127; Hensel, 115; zygomatic width, 69; postorbital 
constriction, 26; across orbital processes, 37; median length of nasals, 
41; palatal length, 60; postpalatal length, 55; length of upper molar 
series, alveolar border, 42; length of mandible, angle to symphysis, 
94.5; length of lower molar series, alveolar border, 48. 
cinereo-argenteus scotti Mearns, Bull. Am. Mus. Nat. Hist., 1891, 
p- 236. Elliot, Syn: N. Am. Mamm., rgo1, p. 308. 
Scott’s Gray Fox. Zorro in Mexico, Tigrillo in Costa Rica. 
Type locality. Pinal County, Arizona. 
Geogr. Distr. Southern California, Arizona, New Mexico, and 
northern Mexico. 
Genl. Char. Similar to U. cinereo-argenteus, but ears and tail are 
longer, and colors usually paler. 
Color. Hoary gray, sometimes a median black line from head 
to base of tail; sides paler; lower jaw and sides of muzzle black, 
except white spot near tip; lower sides of cheeks, throat, patch on 
breast, and one on belly white; sides of neck and hinder surface of 
legs yellowish fulvous; tail gray with a narrow black stripe above, 
and beneath yellowish fulvous. 
