256 
V. S. P. R. R. EXP. AND SURVEYS-ZOOLOGY-GENERAL REPORT. 
SCIURUS LIMITIS, Baird. 
* Texas Fox Squirrel. 
Sciurus limitis, Baird, Pr. A. N. Sc. Phila. VII, April, 1855, 331. (Devil’s river, Texas.) 
Length about 10 inches. Hind foot 1.66 inches. Size less than S. carolinensis. Upper molars four. Hairs short and close 
pressed. Ears long, coated with very short hairs. Feet small ; soles naked and dark brown. Above, mixed cinnamon. Tail, 
cinnamon beneath ; above and on the sides like the back, with three annulations of black. 
A full description, of this squirrel will he found in the report on the zoology of the United 
States and Mexican Boundary Survey. 
Notwithstanding the marked difference in color and size between this species and all the 
other American fox squirrels, I am far from feeling sure now that it is anything hut a local 
variety of the common western fox squirrel. Had I deferred characterizing the species until the 
present time I should hardly have ventured upon a new name with a more ample knowledge of 
the North American squirrels than I possessed two years ago. I only retain it now pro¬ 
visionally, until its real character can he better tested by additional specimens.' The locality 
is considerably further west than that of any fox squirrels that have fallen under my notice. 
List of specimens. 
Catalogue 
number. 
Corresponding 
No. of skull. 
Locality. 
Whence obtained. 
Nature of 
specimen. 
Collected by— 
351 
1415 
1265 
2258 
Devil’s river, Texas. - 
Col. J. D. Graham, U. S. A_ 
Major W. H. Emory, U. S. A_ 
Captain J. Pope, TT. S. A__ 
Skin_ 
..do. 
rlo 
J. H. Clark.- 
•Dr. C. B. Kennedy.. 
Western Texas 
SCIURUS CAROLINENSIS, Gm. 
Gray Squirrel and Black Squirrel. 
SMALL SOUTHERN VARIETY. 
Sciurus carolinensis, Gmelin, Syst. Nat. I, 1788, 143. 
Bachman, Pr. Zool. Soc. Lond. VI, Aug. 1838, 94.— Ib. Charlesw. Mag. Ill, July, 1839, 330.— 
1b. Silliman’s Am. J. Sc. XXXVII, 1839, 304. 
Aud. & Bach. N. Am. Quad. I, 1849, 55; pi. vii. 
? Sciurus cinereus, Desm. Mamm. II, 1822, 332. 
Griff. Cuv. V, 1727, 254. 
Lesser Gray Squirrel, Pennant, Synopsis, 1771, 283 — Ib. Hist. Quad. 1781. 
Hudson Squirrel, var. a, Carolina, Pennant, Arctic Zool. I, 1784, 116. 
Ecureuil gris de la Carolina, St. Hilaire & Cuv. Hist. Mamm. III. Two plates and text. 
LARGER NORTHERN VARIETY. 
Sciurus cinereus, Schreber, Saugt. IV, 1792, 766; pi. ccxiii. (Original and accurate description; the figure from 
BufFon.) 
Harlan, Fauna Americana, 1825, 173. 
Fischer, Synopsis, 1829, 352. 
Thompson, N. H. Vermont, 1842, 45. 
