PEROGNATHUS PARVUS. 
329 
slightly curved ; tail long, tapering, and clothed with silky hairs. Colour 
above sepia-brown ; beneath white ; a dark line crosses the cheeks beneath 
the eyes. 
DIMENSIONS. 
Length of the head and body, - 
“ of head, from the nose to the occiput, - 
“ of ears, 
“ of tail, 
“ of fore-leg from the elbow, - 
“ of fore-foot, 
“ of tibia, 
“ of hind-foot, 
“ of metatarsus, 
Inches. 
1 _ 9 _ 
J-l 0 
_9_ 
1 0 
_3 
2 0 
2ro 
_9 
2 0 
_3 
I 0 
7 
1 0 
?_ 
1 0 
GENERAL REMARKS. 
A single specimen of this singular animal was obtained in Oregon, but 
no notes were furnished by the person who obtained it. The formation 
of its liind-legs leaves but little room to doubt that its habits are similar 
to the jumping mice, Meriones Labradorius (Richardson), which are inha- 
bitants of the same region. Its singularly large head, which equals its 
body in bulk, its ample cheek-pouches, long hind-legs, and long tail, pre- 
sent a general form which is peculiar and altogether very remarkable. 
On dissection, the stomach was found to contain a pulpy matter, which 
appeared to be the remains of a bulbous root ; the liver is very large, and 
consists of five foliaceous lobes ; we were not able to detect any gall- 
bladder. 
The specimen is a female, and presents the rudiments of a fourth molar 
tooth in each side of the lower jaw, which would eventually have replaced 
the front ones, already much worn. (Peale.) 
vol. m, — 42 
