428 Dr. J. E. Gray's Si/nopsis of the American Squirrels 



hair : he gives an uncoloured figure of the latter ; but it will do 

 for any squirrel ; the latter can scarcely be the one here de- 

 scribed. The Museum specimens are much larger, the body 

 and head being 11^ or 12 inches long. 



See also : — 



1. Sciurus varius, Wagner, Suppl. Schreb. 1843, iii. 168; 

 S. Baird, M. N. A. 283. Hab. Mexico, Oaxaca. 



2. Sciurus albipes, Wagner, K. B. Akad. iii. 500; Schreb. 

 t. 213 d. 



ISc. variegatus, Erxleben, Syst. 1/77, p. 421 ; Baird, M. N. A. p. 282. 



Above mixed white, black, and ferruginous; beneath ochrey 

 ferruginous, feet and shoulders brown ; ears white ; tail centri- 

 cally ferruginous, on sides banded with black and white. Hab. 

 Mexico. 



3. Sciurus socialis, Wagner, Abh. K. Bay. Akad. ii. 504, t. 5 ; 

 S. Baird, M. N. A. 283. 



Above mixed white, cinereous, and yellowish ; beneath pale 

 rusty yellow ; ears fulvous ; feet white ; fur soft, a tuft of snow- 

 white hair behind the ears; tail rusty red beneath, then black, 

 and bordered with white. Hab. Mexico. 



II. Fur short, soft, olive-brown, Hack- and yelloio-punctulated, 

 rarely red-washed ; hairs black- and yellow-rinyed. Moderate- 

 sized or small. 



A. Middle-sized. Tail black; fur very short, of the belly sparse ; 



hairs black at the base, with a pale ring. 



1 7 . Macroxus fumigatus. 



Fur short, soft, black, very minutely punctulated with yellow ; 

 hairs black, with a small yellow subterminal band ; crown, feet, 

 and tail black ; hairs of tail black to base ; sides of nose, cheeks, 

 and temple brown, punctulated with black ; throat and underside 

 only slightly covered with short, soft, distant blackish hairs. 



Hab. Brazil, Upper Amazons (Bates). B.M. 



Known from all the other species by the shortness of the soft 

 black hairs. 



B. Moderate-sized. Tail black, red-washed or -varied ; fur mo- 



derately soft. 



18. Macroxus Lanysdorfii. 

 Sciurus Langsdorjii, Brandt, Mem, Acad. Petersb. 1835, ii. 425, t. 11. f. 1. 



Fur olive, black-and-grey mixed; hairs black, with an orange 

 subterminal band : tail very full, clavate, black, washed with 



