ELEGANT OPOSSUM. 
515 
and the cheeks are yellowish white. There are two distinct 
grooves on either side of the mesial notch formed by the 
termination of the nasal groove, in the upper lip. The ears 
are clothed throughout with small liairs. I add the dimen¬ 
sions of this animal (which I think is without doubt the true 
D. pusilla of Desmarest) to those given by Azam. 
From From B. M. 
Azara. specimen. 
Male. Male. 
Inches. Lines. Inches. Lines. 
Length from tip of nose to root of tail 3 
6 
3 3 
11 of tail ... 
. 3 
10 
3 9i 
“ from nose to eye 
. 
“ from ditto to ear 
10 
“ of ear 
6 
Width of ditto ... 
Length of fore foot ... 
“ of hind foot ... 
6 
DIDELPHYS ELEGANS. 
Elegant Opossum. 
{Plate 16, fig. 1). 
Didelphjs elegatis. Waterhouse, Zoology of the Voyage of H.M.S. Beagle, 
Mammalia, p. 95, PI. 31. — Naturalists* Library, 
(Marsupialia), Vol. xi. p. 106. 
“ Jiortensis. Reid, Proceedings of the Zoological Society for January, 
1837, Pt. 5, p. 4. 
Thylamys elegans. Gray, List of the Mammalia in the British Museum, 
p. 101. 1843. 
Fur long, and very soft, of a delicate yellowish ash colour on the 
upper parts, slightly suffused with black, or brown, on the 
back, and white on the under parts; ears rather large; eyes 
