918 ROBERT COLLETT, 



All specimens were met with ou the heights, and the animal seems 

 to live only in the uppermost regions of the mountains. It is called 

 by the natives „Mongan" (cfr. Lumholtz in: Proc. Zool. Soc. Lond. 

 1884, p. 407). 



Ps. Jierhertensis also belongs to the true PseudocJiiri, and has the 

 formation of the feet and construction of the tail , characteristic of 

 that genus. 



The für is soft as silk, but not so close and wooUy, as in the 

 preceding species. The tail is, as in the typical Pseudochiri, some- 

 what thickened at the base, and with long hairs, but at the end it is short 

 haired ; the hairs, however, are, not so smooth or adpressed, as in the 

 other species (with the exception of Ps. lemuroides), but slightly wavy 

 and somewhat erect. 



The naked stripe along the under part of the tail is rather long, 

 and occupies the outer half of the tail (or even more). 



The ears are very short, and are but very slightly visible beyond 

 the hair covering of the head, As in the other species, on their in- 

 terior surface they are almost naked. 



Some measurements , taken from the mounted specimen, are as 

 follows: Male. Female. 



Length of body (head included) . about 340 mm 345 mm 



Length of tail „ . 335 „ 320 „ 



Length of ear (measured along its inner 



margin) 15 „ 17 „ 



The c 1 u r is, in the male, very characteristic, but more uniform 

 in the female. 



Both sexes have of the upper surface brownish black, the lower 

 white or whitish. 



Male: The upper part of the back in dark brownish black, but, 

 in most of the hairs, the tips are silken glossy yellowish brown with 

 a reddish tingc. The rump is almost black, but mingled with reddish 

 brown hairs; the root of the für is blackish. The under surface is 

 snowy white; this colour Covers the middle of the throat, the whole 



p. 384) has described the female of P. Mongan as that of Ps. Aerbertensi's". 

 Dr. DE Vis' paper, on these lines going to print, has probably not yet 

 reached Europe, and its contents concerning the 2 Pseudochiri are unknown 

 to me, except as concerns the words quoted above. I can, however, in 

 a renewed examination of the specimens, not find any ditference of specific 

 importance betweeu them, and therefore cannot deviate from my original 

 asßumption that they both belong to the same species. 



