ALLEN ON THE AMEEICAN SCIURI. 879 



2. — Var. richardsoni. 

 Sciurus richardsoni, Bachman, Proc. Zool. Soc. Lond. vi, 1838, 100. 



3. — Var. douglassi. 



Sciurus hudsonius, var. (3, Richardson, Faun. Bor.-Am. i, 1829, 190. 



Sciurus douglassi, Gray, Proc. Zool. Soc. Lond. 1836, 88 (no description). — Bachman, 



Proc. Zool. Soc. Lond. 1838, 99. 

 Sciurus toivnsendi, Bachman, Journ. Acad. Nat. Sci. Phila. viii, 1839, G3 (MS. name). 

 Sciurus lanuginosus, Bachman, Proc. Zool. Soc. Lond. 1838, 101. 

 Sciurus moUipilosus, Audubon & Bachman, Proc. Acad. Nat. Sci. Phila. i, 1842, 102. 

 Sciurus helclieri. Gray, Ann. and Mag. Nat. Hist, x, 1842, 263. 

 Sdurtis suckleyi, Baird, Proc. Acad. Nat Sci. Phila. vii, 1855, 333. 



4. — Var. fremonti. 



Sciurus fremonti, Audubon & Bachman, Quad. N. Amer. iii, 1853, 237, pi. cvlix, fig. 1. 



II. — Sciurus carolinensis, Gmeliri. 



1. — Var. leucotis. 



Sciwus ciner&us, Schreber, Siiuget. iv, 1792, 706, pi. ccxii {nee Linn6, 1758). 



Sciurus iiennsylvanicus, Ord, " Guthrie's Geog. (2d Ani.ed.) ii, 1815, 292" (melanistic). 



Sciurus niger, Godman, Am. Nat. Hist, ii, 1826, 133 (melanistic; nee Linn^, 1758). 



Sciurus carolinensis, Godman, Am. Nat. Hist, ii, 1826, 131. 



Sciurus leucotis, Gapper, Zool. Journ. v, 1830, 206, pi. xi. 



Sciurus vulpinus, DeKay, N. Y. Zool. i, 1842, 59. 



Sciurus rnigratorius, Audubon & Bachman, Quad. N. Amer. i, 1849, 265, pi. xxxv. 



2. — Var. carolinensis. 



Sciurus carolinensis, Gmelin, Syst. Nat. i, 1788, 148. 



Sciurus fuliginosus, Bachman, Proc. Zool. Soc. Lond. 1838, 96. 



3. — Var. yucatanensis. 



Seiurus carolinensis var. yucatanensis, Allen, Mon. N. Am. Rod. 1877, 705. 



Note. — In " Monographs of the North American Eodentia", p. 701, 

 exclude from synonyms of var. leucotis, " f Macroxus melania, Gray ", 

 and from synonyms of var. carolinensis exclude " f Sciurus deppei^\ re- 

 specting which see infra, pp. 881, 885. Variety yucatanensis seems to be 

 a. rare form in collections, Mr. Alston stating that the only specimen he 

 has seen being the one I sent him. 



III. — Sciurus niger, Linn6. 



1. — Var. niger. 



Sciurus niger, Linn6, Syst. Nat. i, 1758, 64. 



Sciurus variegatus, Erxleben, Syst. Anim. 1777, 421 (in part). 



Sciurus vulpinus, Gmelin, Syst. Nat. i, 1788, 147. 



Sciurus capistratus, Bosc, Ann. du Mus. i, 1802, 281. 



Sciurus rufiventris, M'Mqrtrie, Cuvier's An. King. (Am. ed.) i, 1831, 433. 



Sciurus texianus, Bachman, Proc. Zool. Soc. Loud. 1838, 86. 



2. — Var. cinereus. 



Sciurus cinereus, Linne, Syst. Nat. i, 1758, 64. 



Sciurus vulpinus, Schreber, Siiuget. iv, 1792, 772, pi. ccxv, B. 



