ion 
DIDELPHY8 LAN1GKKA. 
According to Azara this animal has a soft and woolly fur, 
which, on the back, is about one inch in length ; its general 
colour is compared to that of Spanish tobacco, deeper on the 
back, and bright on the sides of the body ; the under parts, 
and inner surface of the legs, whitish. On the head is n 
narrow brown line, commencing on the muzzle, and running 
backwards to the occiput. The ears are somewhat pendulous, 
naked within, and with the terminal half also naked ex¬ 
ternally ; in the living animal they are of a livid violet hue: 
the edge of the lower lip is white. Fur. like that on the body, 
covers an unusually large portion of the tail, extending un 
the upper surface to the commencement of the terminal third 
part, but on die under surface it is less extended, terminating 
at die commencement of the second tliird ; the naked portion 
of the tail is whidsh. Both Azara and Rengger agree in 
stating that the tail has a triangular form, arising, according 
to the latter author, from the great development of the spinous 
and transverse processes of its vertebra*. 
Three specimens examined by Dr. Rengger are described 
ns of a light brown colour, passing into reddish brown around 
the eyes, on the sides of the neck, and outer surface of the 
extremities ; as having a black stripe on the upper part of 
the head, which runs forwards to the point of the nose; the 
edge of the lower lip white, the bristles on the face black, the 
point of the muzzle flesh-coloured, the abdomen and inner 
side of the limbs reddish white, the ears and soles of the 
feet violet blue mingled with grey, and the naked portion of 
the tail reddish white. 
Botli sexes are said to agree in their colouring, and the 
female has no true pouch, this being represented only by two 
folds of the integument. 
