DECEMBER, 1903. MAMMALS ELLIOT. 259 



very different from the slender processes of the species compared; 

 infraorbital foramina very large and triangular in shape; palate 

 anteriorly much broader for its length than either of the other forms; 

 post-orbital processes short. 



Color: Upper parts very dark gray, the hairs being yellowish at 

 base and tipped with black, the dark color predominating to such an 

 extent on the dorsal region that this part seems in certain lights all 

 black; sides of neck and body slightly paler; top of head nearly black 

 like the back, mixed slightly with white and buff hairs; above the eye 

 for the posterior three-fourths is a buff spot connecting posteriorly 

 with a buff stripe that runs under the eye to the nose; black band in 

 front of eye; end of nose blackish brown; muzzle black; upper lip 

 buff; chin and throat buff; rest of under parts yellowish white; shoul- 

 ders like back; upper parts of fore and hind legs brownish gray; fore 

 feet white or very pale yellowish white, this hue extending up the out- 

 side to beyond wrist; under side of legs yellowish white; hind feet 

 with terminal part and toes whitish. Tail very long with alternating 

 white and black rings, and tip black ; the black rings much broader 

 than the white and not meeting beneath. Ears, basal half black, 

 remainder white; whiskers very long, jet black. 



Measurements: Total length, 870; tail, 425; hind foot, 80. Skull: 

 total length, 89; occipito-nasal length, 80; Hensel, 80; zygomatic 

 width, 53; interorbital constriction, 17; post-orbital constriction, 18; 

 width across post-orbital processes, 25.5; greatest width of brain- 

 case, 36; length of nasals, 20.5; mastoid width, 36; length of ptery- 

 goid fossa, 18; palatal length, 37.5; width of palate between last 

 molars, 12; between canines, 10.5; length of upper tooth row from 

 anterior edge of canine, alveolar border, 34; length of canine, n; 

 length of mandible, 55; height at coronoid process, 23; at angle, 9; 

 length of lower tooth row, molar series alveolar border, 27; from 

 anterior edge of canine, 34. 



This is a large form of Bassariscus, with a dark, almost black, 

 pelage in certain lights on the upper parts, and with a much longer tail 

 than any other described species, and with conspicuously white feet 

 tinged with yellow. In general appearance it does not seem to re- 

 semble very closely any of the known raccoon foxes. A single specimen 

 was obtained by Mr. Buxton near Vera Cruz, Mexico. 



