432 Dr. J. E. Gray's Sj/nopsis of the American Squirrels 



depressed, and reddish-washed. There are three specimens : 

 the one marked " a female '' is much redder beneath than the 

 other two, which also appear to be of the same sex. 



29. Macroxus flaviventer. 

 Sciurus flaviventer, Castelnau, MS. B.M. 



Fur very close, blackish olive, very closely and minutely punc- 

 tulated with yellow on the head and sides of the body ; middle 

 of back blacker; hairs very short, close, black, with a yellow 

 tip j cheeks, nose, chin, throat, and chest scarcely punctulated ; 

 under part of the body and inner side of the limbs reddish yel- 

 low, hairs yellow to the base ; ear-tuft small, yellow : tail de- 

 pressed, narrow, blackish, yellow-washed, especially near the 

 end ; hairs yellow at the base ; upper half black, with a yellow 

 tip. 



Hab. Brazil (Castelnau). B.M. 



Like M. cestuans, but smaller and darker, especially on the 

 middle line of the back ; the cheeks and chin yellow, like the 

 underside; the tail depressed, pennate, very narrow. 



30. Macroxus cestuans. 



Sciurus brasiliensis, Marcgr. B. 230; Seba, i. 78, t. 48. f. 8. 



Sc. (Estuans, Linu. S. N. i. 88 ; Kuhl, Beitr. 68 ; Pr. Max, Abbild. t. 



Myoxus gtierlinyus, Shaw, Z. ii. 171, t. 156. 



Macroxus (estuans, Lesson. 



Le grand Guerlinguet, BuiF. H. N. Suppl. vii. 261, t. 65. 



Fur soft, close, dark olive, very minutely punctulated with 

 yellow; hairs very short, lead-coloured, with a narrow yellow 

 subterminal ring and a black tip ; cheeks, chin, and upper part 

 of throat greyish ; chest and beneath, and inner sides of limbs 

 yellow or reddish yellow : tail cylindrical, black, grey-washed ; 

 hairs yellowish, with two narrow inferior and a broad black 

 subterminal ring and more or less grey tips. Ear-tufts none. 



Hab. Brazils, Para (Graham) : B.M. Bay of Honduras 

 (Warwick) : B.M. 



Var. 1. Chest and belly yellow in the middle, grey on the 

 sides. Para (Graham). B.M. Female's teats four on each side, 

 surrounded by a fulvous spot. 



Var. 2. Chest and front of under surface yellowish ; belly 

 whitish grey. Brazil. B.M. 



Var. 3. Chest, underside, and the inner sides of the front 

 legs whitish grey; inner sides of hind legs and middle line of the 

 belly slightly yellow-washed. Brazil. B.M. 



Var. 4. Throat, central line of chest and belly, and inner sides 



