326 Dr. J. E. Gi-ay's Synopsis of the African Squirrels 



** Back with four black stripes. Fur very soft. Ears covered 

 with soft hairs. 



2. Sciurus Isabella, Gray, P. Z. S. 1862, p. 180, t. 24. 



Fur olive-grej', very minutely punctulated ; chin, underside, 

 and inner side of limbs greyish white : tail black, obscurely pale- 

 ringed, tip black ; hairs reddish yellow, with a broad subter- 

 minal black band and grey tip. 



Hab. Camaroon Mountains (Capt. Burton). B.M. 



3. Macroxus. 

 Gray, Ann. & Mag. Nat. Hist. 1867, xx. pp. 271, 275. 



A. The cutting-teeth broad. Tail elongate, longer than the body 



and head, black-ringed. Underside of body nakedish. Large- 

 sized. 



a. Lateral streak none ; sides of neck like back. Nos. 1, 2. 



b. Lateral streak ivhite ; sides of neck white. No. 3. 



B. Cutting-teeth compressed, narrow. Underside of the body gene- 



rally well covered with hair. Middle-sized or small. 



a. Body without any pale streaks. 



* Tail black, pale-ringed. Nos. 4-8. 

 ** Tail dark, punctulated. No. 9. 

 *** Tail red, one-coloured. No. 10. 



b. Body with a pale streak on each side. No. 1 1 . 



c. Back with a pale streak on each side. No. 12. 



d. Shoulders and fore part of sides with a short pale streak. 



No. 13. 



e. Back with two pale streaks on each side. No. 14. 



A. Cutting-teeth large, broad. The underside of the body nakedish, 

 the hairs sparse. Tail elongate, much longer than the body 

 and head, black-ringed ; hairs long. Large-sized. 



a. Body without any white marginal streak on each side ; sides of 

 neck like back. 



1. Macroxus Stangeri. 



Sciurus Stangeri, Waterli. P. Z. S. 1842, p. 127; Fraser, Z. T. t. 25. 

 Sc. caniceps (winter), Teram. Esq. 



Sc. eborivorus, Du Chaillu, Boston J. N. H. vii. p. 363 ; Travels, p. 284, 

 t. 41. 



Olive-grey, varied with the long white tips to some of the 

 hairs; sides of neck, shoulders, and thighs like back; throat 

 and underside of body grey or blackish ; the hairs of the back 

 black at the base, with a broad grey and then a broad black 

 ring and a yellowish tip ; tail black, with narrow white rings. 



