692 DR. J. E. GRAY ON THE URSID&. [Dec. 13, 
(Sonora Grizzly Bear) is less than the Grizzly Bear of the Pacific 
coast. Head very broad. Ears and tail nearly equal. Fore claws 
twice as long as the hinder ones. General colour dark brownish, 
with the tips of the hairs much lighter, of a dirty amber-colour ; no 
distinct indications of dark stripes on back and sides. 
Hab. Los Nogales (Dr. Kennerly). 
ec. Short-clawed American Bears. Fur short, uniform. Front 
claws moderate, not much longer than the hind ones. Hind 
feet short. Upper tubercular moderately loug, narrowed be- 
hind. Evarcros. 
American Bear, Gray, Aun. Phil. 1825. 
10. Ursus (Evarcros) AMERICANUS. B.M. 
Fur entirely uniform throughout, either black or brownish ; hair 
darkest towards the tips; nose brown; feet moderate ; fore claws not 
twice as long as the hinder. 
Ursus americanus, Pallas, Spic. Zool.; Schreb. Saugeth. t. 141.f. B. 
Ours (noir) d Amérique (U. americanus), Cuvier, Ménag. Mus. ; 
Ann. Mus. vii. 333, t. 18. f. 7, t. 21. f. 1-3; Oss. Foss. v. 318, t. 22. 
f. 5, 6, t. 23. f.1; F. Cuvier, Mamm. Lithogr. t.; Fischer, Syn. 
Mamm. 145; Baird, Mamm. N. A. 225, t. 43. f. 10-13 (skull) ; 
Gray, Cat. Mamm. B. M. 72; De Blainv. Ostéogr. Ursus, 20. t. 5 
(skull of adult and young), t. 11 (bones), t. 12 (teeth); P. Z. S. 
1859, p. 477; 1860, p. 130, 180, 417. 
U. niger americanus, Schinz, Syn. Mamm. 301. 
Ours gulaire, 1. Geoff. Mus. Paris. 
Black Bear, Penm. 
Hab. North America. 
Mr. Bartlett notices the teats of two hybrids, believed to be from a 
male Ursus americanus and a female U. arctos (P. Z. 8.1860, p. 130). 
The series of skulls of North-American Bears in the British 
Museum offers a very considerable amount of variation: in some the 
nose and forehead are nearly on the same plane ; that is to say, there 
is very little depression in front of the orbits; but in others the de- 
pression is more decided ; and in the skull of the Cinnamon Bear it 
is as great as in the usual form of the European Bears. The greater 
number of the skulls have the forehead and front of the crown more 
or less convex, sometimes decidedly so; but in a few the forehead 
is nearly flat. 
Dereirall soarelus “3 pg Biome tS ict elke: 
aeeogs aa ao 2S | a2] o8|] ee | a5] 88 
BREE| BE |SE| SS (S| S| BS | hs | Se 
S556 | 82 [sel et os; Fa) ea | ga] so 
3) eee Si = = ae | == 4 yy 
= = bs = 
jin, Ljin. Liin, J. jin. Lin. Ljin. 1. in. Llin, 1 
10 66 92 53/2115 81 73 3 5 
10 6/6 52 342..75 Gl 843 71 1 
9 35 42 0/2 1411/1 63 O 3 
* | 
