308 
DROMICIA. 
pointed tubercles, of which the two on tlie outer side of the 
tooth are the largest. The incisors of the lower jaw are 
narrow, very long, and pointed ; they are followed in each 
ramus of the jaw by three or four 1 small teeth, a principal 
premolar, and three true molars. 
As is very generally the case in the smaller species of a 
natural group, the skull, to a certain extent, resembles that 
of the young individuals of the larger species; as, for instance, 
in the small development of muscular ridges, and propor¬ 
tionately larger size of the cerebral cavity. Such are the 
chief differences which distinguish the skull of the small 
Phalangers under consideration from those of the larger 
species of the group. The auditor)* bulla? are rather large, 
and partially divided by an oblique indentation : the palate 
has four posterior openings. The rami of the lower jaw are 
comparatively slender, and the inflected angular portion of 
the jaw is in the form of a slender pointed process. 
In Dromicia concinna the nails of all the Angers, and of 
the fourth and fifth toes, are very small, and partially em¬ 
bedded in the upper surface of the fleshy pad which terminates 
these members 2 . The nails of the second and third, joined, 
toes of the hind foot are larger, and free: the first toe is nailless 
as usual. In the living animals the ears are considerably 
crumpled, and more or less pendant. 
1 In the skull before we, of Dromicia concinna, I find even five of these 
small teeth, but on one side of the jaw only, the other side of the jaw having 
four. 
* I presume the same structure is found in P. g/irifonnis, but in dried 
skins the fleshy pud at the end of the toe necessarily shrinks, and the nails 
are then free. 
