SADDLE-BACKED PERAMELES. 
381 
larger, and the principal opening in the palate is smaller. 
The lower jaw is more slender. The dimensions are : 
Inches. Lines. 
Length ... ... 
2 
6 
Width . 
1 
0 
Length of nasal bones ... 
1 
1 
Width of ditto, behind . 
-h 
“ “ in front ... ... 
n 
“ of interorbital space ... ... ••• 
Length of palate 
1 
6 
Space between fourth and fifth upper incisors 
H 
“ “ fifth incisor and canine . 
H 
“ “ canine and first premolar 
“ from front of foremost incisor to back of 
2 
last true molar ... 
1 
4# 
“ of four true molars, taken together 
11 of incisive openings ... ... ... 
3* 
“ of second pair of palatine openings 
4 
“ of principal palatine openings . 
3f 
Length of lower jaw. 
2 
0 
Height of ditto from apex of coronoid process ... 
6.} 
PERAMELES MYOSLROS. 
Saddle-hacked Perameles. 
Perarneles myosuros. Wagner, Schreb. Saug., PI. 155, A. d., Pt. Ill, 112, 
Nov. 1842. Gould, Mammalia of Australia, Pt. 1, 
Pl. 2. 
“ arenaria. Gould, Proceedings of the Zoological Society for 
June, 1814, Pt. 12, p. 104. 
Muzzle very slender, and much elongated ; ears rather large ; tail 
moderate; fur rather long: general colour of upper parts 
brownish; under parts of the body, feet, and tail, white, 
indistinctly suffused with yellowish ; the latter with the 
upper surface dusky; ears with a broad dusky band exter¬ 
nally, a large orange patch in front at the base, and the 
