864 ROBERT COLLETT, 



The colour is everywhere a mouse-grey, somewhat lighter under- 

 neath. Each hair is bluish-grey with reddish grey tip; the longest 

 hairs have blacli tips beyond the lighter portion. The tail is more 

 reddish brown, as on the upper part of the feet. The head above is 

 like the back, and without a trace of a darker border to the eyes. 



The female is more reddish grey, and whiter underneath. 



The tail is short in the male, considerably shorter than the 

 body, in the female of the length of the body, and exhibits no swel- 

 ling at the root. It is covered with adpressed hairs, which are not 

 so close, but that the rings can be slightly observed through them. 



The ears are in the young female rather short, and their height, 

 measured along the outer margin, is less than the Space between them. 

 In the fullgrown male they are larger, and their height about equal 

 to the Space between them. 



They are broadly rounded off, and evenly clothed with black 

 hairs, which are dosest on the inner side, especially in the female. 



The sole of the bind foot is bare along the middle of the me- 

 tatarsus, but the heel is covered with hair. The thumb is of a me- 

 dium length, and extends forwards to the päd at the base of the fingers. 

 Pads are found besides at each of the claw-bearing joints. 



The 9 young ones, taken out of the pouch of the female, were 

 comparatively large, and had already visible hairs. Their length 

 fwhen in a rolled up condition) is 9 — 10 mm. 



The skull. As previously stated, the skull of the young female 

 (without taking into account its smaller size) is somewhat less arched 

 across the region of the forehead, and has a broader interorbital space. 

 That this individual, although with young in its marsupium, was not 

 fuUy developed , appears from the discovery that in the sutura coro- 

 nalis there is a fontanelle in the shape of a Square , with an acute 

 angle anteriorly between the frontalia, and posteriorly between the 

 parietalia. No trace of a sagittal crest is to be found in this spe- 

 cimen. 



Some measurements of the skull: 



A. B. 



Length of skull 17 mm 20 mm 



Breadth across the zygomatic arches . 9 „ 11 „ 



Height of skull above bulla .... 4,7 „ G „ 



Interorbital space (least breadth between 



orbitae) 4 „ 4 „ 



