106 



9haw, Gen. Zool., ii, 1801, 140.— Kuhl, Beitrage zur Zool., 1820, 

 66. — Desm., Mamm., ii, 1822, 340. — Sabine, Franklin's Narr., 

 1823, 663.— Harlan, Faun. Amer., 1826, 185.— Godman, Am. Nat. 

 Hist., ii, 1826, 138.— Rich., Fauna Boreali-Amer., i, 1829, 187, 

 pi. xvii. — Fischer, Synop. Mam., 1829, 349. — Gapper, Zool. Jour., 

 V, 1830, 205.—" F. Cuvier, Suppl. Buff. Hist. Nat., i. Mam., 1831, 

 303."— Bachman, Proc. Zool. Soc. Lond., vi, 1838, 100; Charles- 

 worth's Mag. N. H., iii, 1839, 383.— Thompson, Nat. Hist. Ver- 

 mont, 1842, 46; App., 1853, 14 (albino).— DeKay, New York 

 Zool., i, 1842, 61, pi. xvii, fig. 2.— Wagn., Suppl. Schreber's 

 Saugt., iii, 1843, 178.— Schinz, Synop. Mam., ii, 1845, 12.— And. 

 & Bach., Quad. N. Am., i, 1849, 125, pi. xiv.— Woodhouse, Sit- 

 greave's Expl. Colorado and Zufii Rivers, 1853, 53 (Indian Ter- 

 ritory).— Kennicott, Pat. Off. Rep., Agr., 1856 (1857), 67, pi. vii. 

 — Bd., Mam. N. Am., 1857, 260, pi. xlvi, fig. 1.— Thomas, Trans. 

 111. State Agric. Soc, iv, 1860, 656.— Hall, Canad. Nat.' and Gaol., 



1861, 290.— Maximilian, Wiegm. Arch. f. Naturg., 1861, 73.— 

 Ross, New Edinb. Phil. Journ., xiii, 1861, 162 ; Nat. Hist. Rev., 



1862, 274 (to Arctic Circle).— Gray, Ann. and Mag. Nat. Hist., 

 3d ser., xx, 1867, 418.— Allen, Bull. Mus. Comp. Zool., i, 1869, 

 223 ; Proc. Bost. Soc. Nat. Hist., 3d ser., xx, 1867, 418.— Allen, 

 Bull. Mus. Comp. Zool., i, 1859, 223; Proc. Bost. Soc. Nat. Hist., 

 xiii, 1870, 188; ib., xvii, 1874, 43; Bull. Essex Inst., vi, 1874, 

 57. — Gilpin, Proc. and Trans. Nov. Scot. Inst. Nat. Sci., pt. iii, 



1870, 12.— Stevenson, Hayden's Rep. U. S. Geol. Surv. Wyom., 



1871, 461.— Adams, Field and Forest Rambles, 1873, 78, 295.— 

 Merriam, U. S. Geolog. Surv. Terr., 6th Ann. Rep., 1872, 663.— 

 Grinnell, Ludlow's Black Hills of Dakota, 1874, 81. — Jordan, 

 Man. Vert., 1878, 28. 



1816. Sciurus caroUnus, Ord, "Guthrie's Geog." (2d. Am. ed.), ii, 1815, 292. 

 1822. Sciurus rvbrolineatus, Desmarest, Mam., ii, 1822, 333. 

 1827. Tamia hudsonia, Lesson, Man. Mamm., 1827, 231. 

 1843. Tamias rubroUneatus, Schinz, Syn. Mam., ii, 1843, 48. 

 1874. Sciurus hudsonius var. hudsonius, Allen, Proc. Bost. Soc. Nat. Hist., 

 xvi, 1874, 288; Hon. N. A. Rodentia, 1877, 672. 



Varieties and Distribution. — Of the present species, four geographical 

 varieties are recognized, namely : hudsonius, richardsoni, douglassi, and 

 fremonti. These are sufficiently distinct in their extreme phases, but are 

 very much blended wherever their respective habitats meet ; the sub- 

 species are readily separated by their coloration, especially the tail 

 markings. 



