426 Dr. J. E. Gray's Synojms of the American Squirrels 



like the latter ; but the ears are covered with short closely ad- 

 pressed hairs. It differs from Sc. vulpinus in the hair not being 

 black. 



12. Macroxus fossor. 



Scmrus fossor, Peale; S. Baird, M. N. A. 264. 

 Sc. Heersmanni, Leconte. 

 ISc. leporinus, Audub. 



Fur soft, abundant, pale iron-grey, minutely black- and grey- 

 punctulated ; hairs lead-coloured, with a small subterminal black 

 band and grey tip ; chin, underside of body, and inner sides of 

 legs white: tail broad, grey, black-edged; hairs grey, with a 

 broad black subterminal band and grey tip. 



Hab. California (Bridges, B.M. ; Gurney, B.M.). 



See also Sciurus Nebouxii, I. GeoflF. Voy. Venus, t. 12. Very 

 pale grey-grizzled, with black feet. 



13. Macroxus carolinensis. 



Grizzled light yellow, with occasional washes of rusty grey or 

 blackish ; hairs lead-coloured at the base, upper half yellow, with 

 a subterminal black band; tail broad, pale iron-grey, black- 

 varied and white-washed ; hairs yellowish, with a broad subter- 

 minal black band and a long white tip. 



Var. minor. Southern States : — 

 Sciurus carolinensis, Gmelin, S. Baird, M. N. A. 256, t. 45. f. 2. 



Var. major. Northern States : — 

 So. cinereus, Desra. Sc. cinereus, Schreb. 

 Sc. leucotis, Gapper, Z. Jour. 

 Sc. migratorius, Audub. 

 Sc. pennsylvanicus, Ord. 



Var. niger : — 

 Sc. niger, Godman, Gray. 

 Sc.fuliginosus, Bachmann. 



Var. Blackish. 

 Hab. North America. 



14. Macroxus ludovicianus. 



Fur soft, yellow iron-grey ; cheeks, chin, and beneath yellow; 

 head narrow ; ears high, never white ; tail yellow iron-grey, 

 yellow-edged or washed ; hairs yellow grey, with three black 

 bands and a yellow tip. 



Sciurus ludovicianus, Curtis, S. Baird, M. N. A. 251. 

 Sc. rufiventer, Desm. 

 Sc. macroura, Say. 

 Sc. macrourus, F. Cuv. 

 Sc. niacrj/ourus, Godman. 

 Sc. magnicaudatus, Harlan. 



