268 U. S. NATIONAL MUSEUM BULLETIN 205 



Genus SYNTHEOSCIURUS Bangs 

 1902. Syntheosciurus Bangs, Bull. Mus. Comp. Zool., vol. 39, p. 25, April 1902. 



(Type, Syntheosciurus brochus Bangs.) 

 1904. Synthetosciurus Elliot, Field Columb. Mus. Publ. 95, Zool. Ser., vol. 4. 



pt. 1, p. 91, Aug. 2, 1904. (Emendation.) 



Syntheosciurus brochus Bangs 



1902. Syntheosciurus brochus Bangs, Bull. Mus. Comp. Zool., vol. 39, p. 25, 



April 1902. (Regarded as not more than subgenerically separable from 



Sciurus by Goodwin, Bull. Amer. Mus. Nat. Hist., vol. 87, p. 366, Dec. 31, 



1946.) 



Type Locality. — Boquete, Chiriqui, Panama. Altitude, 7,000 feet. Range. — 



Highlands of southwestern Panama and probably adjacent parts of Costa Rica 



(Goodwin, loc. cit.) . 



Subfamily pteromyinae (flying squirrels) 

 Genus GLAUCOMYS " Thomas 

 1908. Glaucomys Thomas, Ann. Mag. Nat. Hist., ser. 8, vol. 1, p. 5, January 

 1908. (Type, Mus volans Linnaeus.) 



volans — group 

 Glaucomys volans volans (Linnaeus)* 



1758. [Mws] volans Linnaeus, Systema naturae, ed. 10, vol. 1, p. 63. 



1884. Sciuropterus volucella volucella True, Proc. U. S. Nat. Mus., vol. 7 



( App., Circ. 29) , p. 596, Nov. 29, 1884. (Part.) 

 1896. Sciuropterus silus Bangs, Proc. Biol. Soc. Washington, vol. 10, p. 163, 

 December 28, 1896. (Top of Katis Mountain, near White Sulphur Springs, 

 Greenbrier County, W. Va. Altitude, 3,200 feet.) 

 1915. Glaucomys volans A. H. Howell, Proc. Biol. Soc. Washington, vol. 28, 



p. 109, May 27, 1915. 

 1915. Pteromys volans nebrascensis Swenk, Univ. Stud., Nebraska, vol. 15 

 (April) p. 151, Sept. 25, 1915. (Nebraska City, Otoe County, Nebr. 

 Regarded as a valid subspecies by Hibbard, Trans. Kansas Acad. Sci., 

 vol. 47, p. 74, 1944.) 

 Type Locality. — Virginia (see Bangs, op. cit., p. 165). Range. — In Canada 

 found only in southern and eastern Ontario, from Essex County (Point Pelee) 

 northward through region between St. Clair River, Lake Erie, and western end of 

 Lake Ontario (Toronto), along part of north shore of Lake Ontario, the most 

 northerly record being at about lat. 45° N. (Clayton) in Lanark County (Ander- 

 son, Nat. Mus. Canada Bull. 102 (1946), p. 123, Jan. 24, 1947); and from 

 Aitkin and Stearns Counties in central Minnesota (Swanson, Minnesota Dept. 

 Conserv. Techn. Bull. 2, p. 82, 1945), Upper and Lower Peninsulas of Michigan 

 (Burt, Mammals of Michigan, p. 195, 1946), northern New York (Lewis County) , 

 and southern New Hampshire south to North Carolina (Raleigh), Tennessee 

 (Nashville), northern Arkansas (Black, Journ. Mamm., vol. 17, No. 1, p. 32, 

 Feb. 17, 1936) and the Boston Mountains in northern Oklahoma (see Blair, 

 Amer. Midi. Nat., vol. 22, p. 113, July 1939) ; west to eastern Nebraska (Otoe 



83 Revised by A. II. Howell, North Amer. Fauna No. 44, June 13, 1918. 



