316 DR. J. E. GRAY ON THE GENUS CUSCUS. [Nov. 12, 



verging behind. The forehead of the skull rather swollen over the 

 front, and depressed between the hinder part of the orbits. Ears 

 hidden under the fur. Fur of one colour. Eucuscus. 



1. Cuscus (E.) URSiNus, Gray, P. Z. S. 1858, p. 103. 



Temm. Monog. t. 1. f. 1, 2, 3 (adult), t. f. 1-5 (half-grown) 

 (skull), t. 4 (skeleton). 



Blackish ; tail and rump dark, like back. 



Hab. Celebes {Tetnm.). 



The three skulls, of different ages, all show only a narrow linear 

 space between the upper edges of the masseter muscles. The fore- 

 head of the youngest specimen is not so concave as that of the two 

 older ones. 



We have an adult and half-grown female from Celebes, obtained 

 for the Ley den Museum in 1843 ; and a nearly adult specimen 

 without any distinct indication of its sex — probably a female — with 

 the pouch sewed up, from the Zoological Society, 1855. 



If this should be the case, we have only female specimens of this 

 genus ; but I believe they have a male at Leyden. 



2. CuscTJS (E.) BREViCAUDATus, Gray, P. Z. S. 1858, p. 102. 

 Pale brown ; the tail and ramp of the same colour as the back. 

 Hab. Cape York {Mr. Macgillivray) . 



The skull, which is that of a very young animal, is more like that 

 of C. ursinus than that of any other species in our Collection. 



The canines are close to the cutting-teeth, and with a very small 

 space between it and the first grinder. The skull is rather convex, 

 and swollen in front over the orbits. 



We have only the young specimen and its skull, on which Mr. 

 Gould established the species. It seems very distinct from C. ursinits. 



Sect. II. The nose of the skull rather produced, rounded. The ante- 

 rior conical false grinders one on each side above, moderate-sized, near 

 the middle of the broad diasteina. The grinders in a slightly arched 

 series. The forehead very convex, and rounded over the middle of 

 the orbit, and flat behind. The ears hairy outside, hidden in the fur. 

 The fur more or less variegated. Tail pale or yellowish. Dorsal 

 streak none. Spilocuscus. 



The skulls which we have of the animals of this section show 

 that there are probably two distinct species. One species has grinders 

 of a rather larger size than those of C. ursinus, but differing from 

 them in being in only a slightly curved line, the three first grinders 

 forming a series of from 10 to 10| lines, or twelfths of an inch. 

 In this respect the skull agrees with those figured by Temminck 

 (Mon. Mam. t. 3. f. 1-6) as of Fhalangista maculata. But one skin 

 agrees with the description of the skin of P. chrysorrhos of that 

 author, and its teeth with the figure of the teeth of P. maculata. 

 Yet it is to be recollected that this author only had a very small 

 number of specimens to examine, and he does not mention in his 



