ON THE GENUS PHASCOLOGALE 509 
Molars small, ms +? 7.0-7.8 mm. Lateral incisors slender , 
about equal in size. 
Hab. South and Western Australia. 
9. Ph. cristicaudata, KREFFT. 
Cheetocercus cristicauda, Krefft, P. Z. S. 1866, p. 435. pl. XXXVI. 
Size medium. Tail thick, considerably shorter than head and 
body, short-haired, except on the upper side of the terminal 
half, where there is a well developed crest. 
Head, body, limbs and tail uniform reddish or sandy brown; 
tail-crest black. 
Pm minute above, absent below, i. e. +, 
I only know this species from the original description. It is 
evidently very closely allied to Ph. apicalis, and is certainly 
neither entitled to generic separation, nor, as Mr. Alston thought, 
is it « allied to Dasyurus rather than to Phascologale (1) ». 
It should also be noticed that the absence of the minute 
lower pm— is possibly only due to immaturity, as a nearly 
full-grown specimen of Ph. apicalis in the British Museum col- 
lection has this tooth still below the gum, without there being 
any milk predecessor to it in the tooth-row, a state of things 
_which may easily be the case in the type of Ph. cristicaudata. 
Hab. South Australia. 
10. Ph. longicaudata, Scu. 
Ned. Tijdschr. Dierk. III, p. 257. 1866. 
Size medium. Tail longer than head and body, uniformly 
short-haired, like a rat’s tail. Hallucal pad continuous. 
Head, body and limbs uniform finely grizzled grey brown, 
posterior back with a rufous tinge very much as in Ph. minima. 
Chin, chest, and belly white. Tail uniform dark brown all 
round. 
() P. Z. S. 1880, p. 460. 
