924 ROBERT COLLETT, 



In its hair covering and in the shape of the tail, Ps. lemuroides 

 forms a transition to the flying Phalangers, but wants their patagium. 

 The shape of the skull and the teeth are almost exactly the same, as 

 in Petaurista volans; the skull is, in particular, broader and shorter 

 than in any of the other Pseudochiri. 



In the skeleton it may be noticed, that the 1'* tail vertebra has 

 ankylosed with the 2"'^ sacral vertebra; the scapula also differs in 

 form from the other Pseudochiri. 



On account of these peculiarities, I have, in giving its diagnosis 

 in 1884, considered it convenient to separate it as a new subgenus, 

 Hemihelideus. 



The für is, as previously stated, very soft and woolly, even on 

 the back of the hands and toes, where the hair covering is smooth in 

 the other species. The tail is slightly thickened as the root, as in 

 the other Pseudochiri^ but the outer two thirds are cylindrical, and 

 the hairs are erect and equally long to the end. Also in this species 

 the end is naked underneath, but the naked line is short, (shorter 

 than the length of the head). 



The ears are of medium length, but appear short, as they are 

 but little projecting above the long and soft für; internally they are 

 very scantily furnished with hairs (a little closer in the young one). 



The eyes are strikingly small. 



Some measurements of the mounted individual B are added: 



Length of body (head included) about 370 mm 



Length of tail „ 295 „ 



Length of ear (measured along the interior 

 margin) „ 20 „ 



The tail is considerably shorter than the body (head included); 

 in the young one the diöerence is less. 



C 1 u r (female). Above , together with the head , a uniform 

 dark greyish brown, each hair with silky shining tips, which on the 

 Shoulders are reddish brown, but on the rump more ashy gi-ey. The 

 root of the hair is greyish black. 



Underneath it is a dirty yellowish grey, without sharply defined 

 limits of colour, somewhat lighter on the throat, and on the inner 

 surface of the feet. 



On the forehead and cheeks some greyish hairs are found; the 

 niuzzle is brownish black. The covering of the fingers and toes is black. 



The tail is black, especially on its outer half, which is jet black ; 

 underneath, its inner half is somewhat more greyish. 



