339 
DIPODOMYS AGILIS.-Gambel, 
CHARACTERS. 
. Tatl browms h, with an indistinct whitish vitta on each side ; outer third to 
No nearly uniform pale brown. 
SYNONYMES. 
Dipodomys AGILIS.-Gambel, Proc. Acad. Nat. Soi, Phila., vol. iv., p. 77 
Pr. Le Conte, “ « vol. vi., p. 224. 
DESCRIPTION. 
In the upper jaw the incisors are divided by a longitudinal furrow ; 
head elongated, tapering from the ears to a sharp point ; ears nearly 
round, sparsely hairy ; eyes large ; a large pouch on each side of the 
head opening externally on the cheeks. Both hind and fore-feet with four 
toes and a rudiment of a fifth. Hind-legs very long ; tail strong, very 
slender, covered with hair, and ending in a penicillated tuft. 
Iwo incisors and eight molars in both upper and lower jaws. 
COLOUR. 
Above, yellowish brown mixed with dusky ; beneath, pure white, ex- 
tending half way up the sides ; eyes dark brown. 
DIMENSIONS 
Total length, including the tail, 
Length of tail, - 
Inches. 
10 * 
61 
HABITS. 
This beautiful Jerboa-like animal is abundant in the vineyards and cul- 
tivated fields of the Pueblo de los Angeles, Upper California. Like the 
other pouched animals it forms extensive burrows, traversing the fields 
in different directions, and is only to be dislodged during the process of 
irrigation. It leaps with surprising agility, sometimes the distance of ten 
feet or more at a spring, and is difficult to capture. (G-ambel.) 
