MAMMALIA. 163 
head are of a mixed gray colour, produced by the fur being dark brown, ringed towards the 
tips with white and frequently tipped with black. The whole of the back and upper surface 
of the tail has a motled gray colour, produced by numerous small, somewhat quadrangular 
white spots, spread over.a dark ground, of a colour intermediate between clove and liver- 
browns. The white neany equals the brown in quantity, and the spots are less distinct 
towards the sides. The fur is short and not very fine, dark towards the roots, ringed with 
white above, and intermixed with longer hairs, having black tips. The throat, breast, belly, 
under surface of the tail, and the extremities, are of a pale ferruginous colour, idea to 
ochre-yellow. 
The fail is rather slender, and, excluding the fur at its tip, is about the same length 
with the posterior extremities when stretched out, or about one-seventh of the length of 
the body.. The extremities are shaped like those of the other spermophiles, but the toes and 
claws are more slender than usual. The palms are naked, and are entirely occupied by five 
tubercles, viz. three at the roots of the toes, and two behind them ofa larger size. At the 
base of the inner posterior tubercle there is a small convex obtuse nail, which is the only 
vestige of a thumb. As is usual in the spermophiles, the second fore-toe and claw is longer 
than the others, the third is scarcely longer than the first, and the fourth is the length of its 
claw shorter than the third. The fore-claws are slender, much compressed, and slightly 
curved. The soles are naked, but in some measure protected by the hairs which curve in 
from the margins of the tarsus. The three middle toes are nearly equal in length, the fifth is 
considerably shorter, and the first is shorter than the fifth. The hind claws are much shorter, 
not so much compressed, less curved, and more excavated beneath than the fore ones. All 
the claws are black. 
DIMENSIONS. 
Inches. Lines. Inches. Lines. 
Length of the head and body . » & 6 Length from heel to end of middle hind-claw 1 3 
= body - . 6 6 », Of the middle hind-toeandclaw . 0 6 
head s see 0 a middle hind-claw ’ 0 If 
fig tail (vertebrz) : 1 6 *. cranium from end of the 
bs tail, including fur ee 3 nasal bones to the occipital spine «, J z 
» from wrist joint to end of middle “ nasal bones 5 0 64 
fore-claw 5 . aw nl 0 Breadth of the frontal bones between the 
5 middle fore-claw . 0 3h orbits . A ‘ 0) 3k 
DIMENSIONS 
Of a second specimen. 
Inches. Lines, Lines. 
Length of the head and body . a 6 Length from the anterior part of the orbit to 
2 tail ra. ‘ . 1 6. the end of the nose " F » 7 
# tail, including the fur - 0 
