DIDELPHYS NOCTIVAGA. 
f)27 
travellers in the night, and, indeed, was exceedingly trouble¬ 
some, running, as the Doctor observes, over their faces and 
'Hands, and always returning after being driven away. 
Didelphys noctivaga. 
Didelphys noctivaga. Tschudi, Fauna Peruana, Pt. 4, p. 148, and Pt. 2, 
PI. 8. 
Fur soft and long ; upper parts of the body greyish brown, 
suffused with dusky; sides of the body reddish yellow ; 
under parts yellowish white; along the mesial line of the 
belly the hairs uniform in colour to the root; on other parts 
of the body the fur grey next the skin: a pale, yellow ish, 
longitudinal stripe on the upper surface of the head; the 
eyes encircled with black-brown, and this dark colour well 
defined; lower region of the ear reddish yellow r , and the 
throat and breast suffused with the same colour : a very 
small portion of the tail clothed with fur; the naked portion 
red-brown: ears naked, and reddish: feet light brown ; the 
toes whitish yellow; the soles flesh coloured. Female pro¬ 
vided with abdominal folds of the integument. 
Inches. Lines. 
Length from tip of nose to root of tail ... 6 9 
u of tail ... ... ... . 7 4 
“ from nose to ear ... ... ... 1 3 
“ of ear ... .. ... ... ... 9§ 
With respect to the geographical ranges of the preceding 
three species, and some other Opossums found in Peru, Dr. 
Tschudi furnishes us with the following particulars :— 
Didelphys Azane, Dr. Tschudi observes, has a very exten 
sive range, being met with throughout the whole of South 
America, to 45° south latitude: in Peru it occurs in all the 
districts, and particularly in the western district. A female. 
