NORTH AMERICAN LAND MAMMALS. 341 



*Sciuropterus silus Bangs. 



1S06. Sciuropterus silus Bangs, Proc.-Biol. Soc. Washington, 



vol. 10, p. 163. December 28, 1896. 

 Type Locality. — Top of Katis Mountain, near Wliitc Sulpliiir 

 Si>rings, Greenbrier Count}", West Virginia. Altitude 3,200 

 feet. 



*Sciuropterus volans volans (Linnseus). 



1758. [Mus] volans Linn^us, Syst. Nat., ed. 10, vol. 1, p. 63. 



1885. Sciuropterus volucella volucella True, Proc. U. S. Nat. 

 Mus , vol. 7 (1884), p. 596. 1885. (Part.) 



1890. S[ciuropferus] volans Jordan, Manual of the vertebrate 

 Animals of the northern United States, ed. 5, p. 321. 



Type Locality. — Virginia. (See Bangs, Proc. Biol. Soc. Wash- 

 ington, vol. 10, p. 165, December 28, 1896.) 



t* Sciuropterus volans goldmani Nelson. 



1904. Sciuropterus volans goldinani Nelson, Proc. Biol. Soc. 



Washington, vol. 17, p. 148. October 6, 1904. 

 Type Locality. — Twenty miles southeast of Teopisca, Chiapas, 



Mexico. 



*Sciuropterus volans querceti Bangs. 



1896. Sciuropterus volans querceti Bangs, Proc. Biol. Soc. Wash- 

 ington, vol. 10, p. 166. December 28, 1896. 

 Type Locality. — Citronelle, Citrus County, Florida. 



t*Sciuropterus yukonensis Osgood. 



1900. Sciuropter-us yukonensis Osgood, North Amer. Fauna, 



No. 19, p. 25. October 6, 1900. 

 Type Locality. — Camp Davidson, Yukon River, near Alaska- 

 Canada boundary, Yukon, Canada. 



Family CASTORID^. 



Genus CASTOR Linnaeus. 



1758. Cas/or LiNN^us, Syst. Nat., ed. 10, vol. 1, p. 58. Type, 

 Castor jiher Linn^us. 



*Castor canadensis canadensis Kuhl. 



1820. Castor canadensis Kuhl, Beitrage z. Zoologie, p. 64. 

 1885. Castor fiber True, Proc. U. S. Nat. Mus., vol. 7 (1884), 



p. 596. 1885. 

 1890. Castor canadensis Merriam, North Amer. Fauna, No. 3, 



p. 59. September 11, 1890. 

 Type Locality. — Hudson Bay. 



