246 U. 8. P. R. R. XP. AND SURVEYS ZOOLOGY GENERAL REPORT. 



Section 1. White beneath. 



Species 9. Above black and grayish rusty, with or without a wash of fer 

 ruginous on the back ; tail beneath and towards the tip uni 

 form ferruginous to the roots of the hairs, not annulated 8. hudsonius. 



Species 10. Above black and grayish rusty yellow, without any tinge of 

 ferruginous ; tail black and grayish white, without any ferru 

 ginous visible externally glossy, black near the tip S.fremontii. 



Species 11. Above reddish brown and black, finely mixed ; no separate wash 

 of ferruginous on the back ; tail dark reddish brown towards 

 the bases of the hairs, its exterior portion on the sides and 

 entire tip glossy black S. richardsonii. 



Section 2. Rusty beneath. 



Species 12 S. douglassii. 



SCIURUS VULPINUS, Gmeliri. 



Southern Fox Squirrel. 



Sdurutniger, LINN. Syst. Nat. (ed. 10th,) I, 1758, 64. IB. (ed. 12th,) I, 1766, 86. 

 ERXL. Syst. Anim. 1777, 417. 

 SCIIREBER, Siiug. IV, 1792, 776; pi. ccxv, ccxv. 

 SHAW, Gen. Zool. II, 1801, 139. 

 ORD, Guthrie's Geog. (2d Am. ed.,) II, 1815, 292. 

 Sdunu vulpintu, GMELIN, Syst. Nat. I, 1788, 147. 

 KERB'S Linnaeus, 1792, 257. 

 GODMAN, Am. Nat. Hist. II, 1831, 28. 

 Sriurut capistratus, Bosc, Annales du Museum, I, 1802, 181. 

 DESMAREST, Mammal. II, 1822, 332. 

 HARLAN, Fauna Americana, 1825, 175. 

 GRIFFITH'S Cuvier, III, 1827, 178; plate. IB. V, 1827, 253 

 BACHMAN, Pr. Zool. Soc. Lond. VI, 1838, 85. IB. Charlesworth's Mag. N. H. Ill, 1839, 117. 



IB. Silliman's Am. Jour. Sc. XXXVII, 1839, 291. 

 WAGNER, Suppl. Schreber's Saugt. Ill, 1843, 156. IB. in Atlas Schreb. Saugt. IV ; tab. ccxiii, 



B. (Gray variety, no text.) 



AUD. & BACH. N. A. Quad. II, 1851, 132 ; pi. Ixviii. 



? Sdunu rufiventer, MCMURTRIE'S Cuvier, I, 1831, 433. (Not of Desmarest.) 

 Sciurws tecianws, BACH. Pr. Zool. Soc. Lond. VI, 1838, 86. IB. Charles. Mag. N. H. Ill, 1839, 154. IB. Sillimau's 



Am. Jour. Sc. XXXVII, 1839, 295. 

 The Black Squirrel, CATESBY'S Carolina, II, 1731, 73 ; pi. Ixxiii. (Original of the description of Linnaeus.) 



PENNANT, Hist. Quad. 1781, No. 273. IB. Arctic Zoology, I. 1784, 119. 

 ??GVary Squirrd, CATESBY'S Carolina, II, 1731, 74; pi. Ixxiv. 



PENNANT, Synopsis, 1771, 282. (These descriptions, with that of the cat squirrel of Pennant, 



are very vague, and may refer almost as well to this as to the Sciurus rinereus.) 

 CapixLratt, 3, ST. HILAIRE & CCVIBR, Hist. Nat. Mammif. Ill, 1819, (plate and text.) 



SP. CH. Tail vertebrae shorter than the body and head; with the hairs, longer. Head rather slender, and more pointed. 

 Ears not tufted. Tail rather cylindrical. Length to root of tail about 12 inches ; tail 15 inches. Hind feet 3 inches ; 

 skull 2.75 inches. Color varying from gray above and white beneath, through various shades of rusty to pure uniform 

 lustrous black ; ears, and generally nose, always white. 



This squirrel is the largest North American species that has fallen under my notice, and 

 though one of the most variable in some respects, is yet easily identified through all its changes 

 by the almost constant presence of white nose and ears. I have not had an opportunity of 

 examining fresh specimens of the species, or even perfect alcoholic ones, but am inclined to 

 consider it as ratker more slender than the other American fox squirrels, with narrower head 



