476 UROCYON. 
Fic. LXIV. UROCYON C. FRATERCULUS. 
ears at base dark fulvous, rest to tips brownish gray; sides of neck 
and pectoral band fulvous; chin black; rest of under parts buffy 
white except neck in front, which is pure white; legs on outer sides 
dark fulvous; buff on inner sides, with a whitish line inside thighs; 
tail silvery gray, with a brownish black line down the center and a 
rufous one beneath, tip black. 
Measurements. Total length, 750; tail to end of hairs, 343; hind 
foot, 95; ear, 50. Skull: occipito-nasal length, 91; Hensel, 90.5; 
zygomatic width, 53; interorbital constriction, 19; palatal length, 38; 
postpalatal length, 43; length of upper sectorial, alveolus, 10; length 
of lower jaw, 73; height at coronoid process, 26. 
cinereo-argenteus parvidens (Urocyon), Miller, Proc. Acad. Nat. 
Scien. Phil., 1899, p. 276. 
SMALL-TOOTHED Fox. 
Type locality. Merida, Yucatan, Mexico. 
Geogr. Distr. Yucatan, Mexico. 
Genl. Char. Like U. c. fraterculus, but with smaller teeth and 
shorter tail. 
Color. Above gray, tinged with buff, darkest on dorsal line; 
sides more buffy; cheeks, sides of nose, throat, middle of under parts 
