IIOARY-GREY OPOSSUM. 
503 
the admeasurements of an animal preserved in spirits in the 
collection of the British Museum : in all essential points it 
agrees with M. Temminck’s description of D. cinerea , having 
the upper parts of the body grey, and the under parts white, 
or nearly so, and the eyes encircled with black, but the 
portion of the tail which is clothed with fur is less than in 
the specimens examined by the author just mentioned; it is, 
however, greatly extended, as compared with many of the 
species of the present section : such as D. marina, &c. The 
muffle in the specimen under consideration has a double cleft 
on its lower edge, on either side of the notch formed by the 
termination of the mesial groove, as in D. Philander, and 1 
find the same character in I). marina and D. pus ilia. Three 
very small Opossums accompanied the specimen in the British 
Museum, which appear to me to be clearly the young of the 
same species: they agree with the adult in colouring, and 
upon comparing them with the young of D. marina of the 
same size, they differed in having the tail longer in proportion 
to the body; the former being 2 inches, and the tail Sc¬ 
inches, whilst in D. marina the tail was equal to the head 
and body in length. The scales on the tail of the adult 
animal are very indistinct. 
DIDELPHYS IN CANA. 
Hoary-grey Opossum. 
Bide Ip his incana. Lund, Det. K. Dauske Vidensk. Selsk. Afh. viii. p. 236. 
“ “ Schinz, Synopsis Mammalium, i. p. 503. 
Upper parts grey, under parts white; a grey-black band passes 
through the eye; tail light brown, whitish at the extremity. 
