5£^2 Mr. P. S. Kersl 



law on 



Type, Adult. Original number K. 202. B.M. no. 

 23. 3. 4. 24. Collected by Mr. C. F. M. Swynnerton. 



Type-locality. Wilhelmsthal, Lushoto, Usambara. 



Excepting the species next to be described, it would per- 

 haps be proper to regard carruthersi as the nearest relative 

 of this elegant and striking species. There is no sign of a 

 side-stripe nor any other characters to connect it with the 

 pijrrhopus group. The great size and exaggerated breadth 

 of the skull are different to anything else in the genus. 



The curious bright tawny tip to the tail is perhaps part 

 of the process of some seasonal change. It certainly has a 

 somewhat unnatural appearance. 



22. Funisciurus byatti, sp. n. 



This is another large species differing in colour and skull- 

 characters from veivillarius. 



The quality of the fur is much the same as in vexillarius^ 

 but much scantier. General colour of back grizzled 

 mummy-brown, becoming greyer on the sides and dull 

 rufous on the flanks and outside of thighs. Individual hairs 

 as in vexillarius, but ochracous-butf subterminal rings. 

 Nose, parts about mouth, and a broad streak running 

 through the eye to the ear rufous. Crown like back, 

 but with a slight rufous tinge. Ear without a white 

 fringe. Arms and shoulders dark rufous. Underparts 

 as in vexillaiius, but darker, the hairs having much shorter 

 cream tips. Hands and feet tawny ochraceous. Tail 

 coloured for one-fifth of its length like the back. The 

 distal four-fifths is clothed with hairs havino- three buff 

 rings and two black, the subterminal black ring, especially 

 towards the end of the tail, being very broad. These rings 

 are very apparent when the tail is viewed from the lower 

 side. The tip of the tail is buff, not black as in carruthersi. 



The skull, which is nearly as long as in vexillarius^ is 

 nevertheless very much narrower. The brain-case is more 

 than 2 mm. smaller in breadth, the interorbital space 2 mm. 

 narrower. The nasals of vexillarius, though of the same 

 length as those of hyatti, appear to be short and stunted 

 when compared with them, owing to the great breadth of 

 the former. Teeth not so broad as in vexillarius. 



Measurements of the type (taken from the dried skin) : — 



Head and body 264 mm. ; tail 210 ; hind foot 52. 



Skull : greatest length 53 ; basilar length 43 ; palatilar 

 length 24*8 ; zygomatic breadth 31 ; interorbital con- 

 striction 15*5; nasals 16x8; breadth of brain-case 22; 

 greatest length of mandible (without incisors) 33, greatest 



