1864, | DR. J. E. GRAY ON THE URSIDS. 705 
Var. 3. Yellowish ; cheek-patch small. 
Procyon psora, Gray, Ann. & Mag. N. H. 1842, p. 261; Voy. 
Sulphur, pl. 9 & 17; Cat. Mamm. B. M. 38; Baird, Mamm.N. A. 
215; Wiegm. Arch. 1848, p. 2. 
Raccoon, Cook’s Voyage? ; Richardson, Beechey’s Voy. 4,- 
no. 10, 
Talyocoyth, Hernand. Mex. 12, no. 37? 
Hab. Sacramento. Called “ Psora,” 
This species varies rather in the tint of its colours in the different 
parts of North America. It is very apt to become white, and is the 
Procyon nivea (Gray, Mag. N. Hist. 1837, p. 580) from Texas, 
Wagler, in 1831, described the Mexican variety, which sometimes 
has black feet, as P. hernandesii (Isis, xxix. 914); I described a 
specimen from California, with the tail injured, as P. psora (Ann. 
& Mag. N. H. 1842); and Wiegmann described two other varieties 
under the names of P, brachyurus and P. obscurus (Arch. iii. 369). 
Dr. Baird, in the ‘Mammals of North America,’ considers P. her- 
nandesti as a species, and calls it the black-footed Procyon, including 
P. psora, which has feet as pale or paler than P. dotor. 
The skulls vary considerably in the width and concavity of the 
palate ; in some the width is half the length to the end of the tooth- 
line, in others less than half the length. In general there is only 
a single large suborbital perforation ; but in specimen d there are 
two small well-separated pores. 
oo hae SETS hag |e ty 3 & 
ALAS) a ECE Ee" | a" |] Be 
= eee ST Besa Bll: tied 
y fin Jjin. 1 fin, tin. Lin, Lin L jin. 1. jin, 1 
P.lotor, 2220. ..reseereseneld 6119 9 13 433 21 Ofl 33/1 6 (2° 12 
DOA dsc: ane. #02 5211/2 90101 111 3/1 9g 
222. eR eae 4.0/2 43211(2 90 ol ol 23/1 93 
999 TaN 
aes eal 4012 68 of 20 of aah 4h 9 
P. psora, 223, Adult,........ 4&7 12.30 |S 18 3011/1 3/1 6/2 12 
** Tail slender, eight- or nine-ringed. Forehead of skull flat, in 
a line with the nose; brain-case swollen ; palate only shortly 
produced, and broad behind ; grinders large, Euprocyon. 
2. PRocYON CANCRivora. B.M. 
Tail reddish, with eight or nine black rings. Fur ashy, blackish- 
washed; feet brownish, beneath whitish ; face with a large black 
.patch, extended on to the cheeks, and one side of the limbs black. 
Ursus cancrivorus, Cuv. Tabl. Elém. 113, 1798. 
Procyon cancrivorus, Illiger, Prod. ; F ischer, Syn. Mamm.; Gray, 
Cat. Mamm. B. M. 74; De Blainy. Ostéogr. Subursi, t. 5 (skull) ; 
P. Z. 8. 1859, p. 432. 
Raton crabier, Buffon, H.N. Supp. vi. 236, t. 32, 
Hab. South America : Demerara (Mus. Z. Sos Paraguay; Brazil. 
Proc. Zoot. Soc.—1864, No. XLV. 
