in the Collection of the British Museum. 427 



Sc. Sayi, Aud. 



Sc. subauratus. Bach. Type in B.M. 



Sc. rubricaudatus, Aud. 



ISc. limitis, Baird. 



?Sc. Lewisii, Ham. Smith. 



Hab. Louisiana (Bachraaun) : type in B.M. Missouri : B.M. 

 Va7\ Dusky. 



Sciurus Audubonii, Bachmann. 

 Sc. occidentalis, Bachmann. 



Hah. Illinois. 



See 1. Sciurus limitis, Baird, M. N. A. 256, t. 64. f. 81. f. 1. 

 Hab. Texas. Much smaller than S. ludovicianus, and the pre- 

 vailing colour cinnamon. 



2. Sciurus lanigerus, Aud. & Bach. Quad. N. A. 1849, i. 27; 

 S. Baird, M. N. A. 280. Hab. Northern California. 



15. Macroxus griseuflavus. 



Fur abundant, rather thick, nearly uniformly coloured yel- 

 lowish grey, yellow, white, and black mixed; nose and front of 

 crown whiter; cheeks and chin greyish white; ear-tuft dirty 

 white; throat, chin, belly, and inner side of the limbs yellow 

 red ; feet white and black equally mixed ; hairs of back lead- 

 coloured, upper half brown, with a black subterminal band and 

 a white tip ; tail pale brown, white-washed ; hairs grey, with 

 three blackish bands, the last subterminal with a long white tip. 



Hah. Tropical America, Guatemala (Salvin). B.M. 



Somewhat like M. leucops, but paler, more uniformly coloured, 

 and the colour of the hairs quite different ; orbits not white ; chest 

 yellow red. 



16. Macroxus leucops. 



Fur abundant, very soft, yellowish grey, minutely yellow-, 

 white-, and black-varied ; crown, nape, and rump yellow-washed ; 

 hairs long, lead-coloured at the base, brown above, with a nar- 

 row black band and white tip; nose and cheeks grey; ear-tuft, 

 orbits, chin, thi'oat, and feet white ; chest, belly, and inner sides 

 of the limbs bright red; tail very bushy, black, white-washed, 

 with irregular black rings ; hairs slightly yellow at the base, 

 with a very broad black band and long white tip. 



Hab. North America, Mexico, Oaxaca (Salle). B.M. 



Var. The lower half of the hairs of the tail orange-yellow. 

 Hab. New Granada? B.M. 



Wagner (Abh. K. Bay. Akad. ii. 500) describes two squirrels 

 from Oaxaca as S. albipes and S. socialis, the first 10^ inches 

 long, with rigid hair, the second 8| inches long, with softer 



