SC1UROPTERUS. 



/>. Sciuropterus wilir'uiu* innkkni-i ki-nxix Sornborger. 



Sciuropterus sabrinns niakkcrikciisis Sornborger, Ottawa Xat., 



xiv, 1900, p. 48. 

 MAKKOVIK FLYING SQUIRREL. 



Type locality. Makkovik, Labrador. 



Geogr. Distr. Labrador. Range unknown. 



Genl. Char. Size large, color dark. 



Color. Similar to 5. sabn'inis but darker above, beneath whitish; 

 tail sooty, basal half darkest. 



Measurements. Total length, - -; tail vertebras, - -; hind foot, 

 40.5-42. Skull: occipito-nasal length, 35-41.4; Hensel, 27.9-33; z ygo- 

 matic width, 21-26.2 ; interorbital constriction, 7.1-8.9; length of man- 

 dible, 21-25.9; length of lower molar series, 6.7-8.2. 



c. Xei iii-opt ems snln-inuK xilns (Bangs).. 



Sciuropterus silus Bangs, Proc. Biol. Soc. Wash., x, 1896, p. 163. 



Sciuropterus sabrinus silns Elliot, Syn. N. Am. Mamm., F. C. M. 



Pub., ii, 1901, p. 108. Zool. Ser. 

 PUG-NOSED FLYING SQUIRREL. 



Type locality. Katis Mountain, White Sulphur Springs, Green- 

 brier County, West Virginia. 



Geogr. Distr. Probably the higher southern Alleghanies. 



243. Sciuropterus yukonensis Osgoocl. 



Sciuropterus yukonensis Osgood, N. Am. Faun., No. 19, 1900, p. 

 25. Elliot, Syn. N. Am. Mamm., F. C. M. Pub., n, 1901, 

 Suppl.. p. 428. Zool. Ser. 

 YUKON FLYING SQUIRREL. 



Type locality. Camp Davidson, Yukon River near Alaska, Canada 

 boundary, Yukon, Canada. 



Geogr. Distr. Possibly from Chilkoot Inlet, Alaska, north to 

 Canada boundary. 



244. Sciuropterus volans (Linnaeus). 



Mus volans Linn., Syst Nat., i, 1758, p. 63; i, 1766, p. 85. (Alns 



nee Sciurus, p. 88.) 



Sciurns volucella Pallas, Nov. Spec. Quad. Glir., 1778, p. 351. 

 Sciuropterus volans Elliot, Syn. N. Am. Mamm., F. C. M. Pub., 



n, 1901, p. 109, fig. 25. Zool. Ser. Id. Mamm. Middle Ainrr. 



& W. Indies, F. C. M. Pub., iv, Pt. i, 1904, p. 158, figs. 



xxxni. Zool. Ser. 

 COMMON FLYING SQUIRREL. 

 Type locality. Virginia. 



Geogr. Distr. Northern New York and southern New II tiire 



south to Florida, west to the plains. 



