SCIUROPTERUS. ' 125 



h. SchiJ-optejus sahriiiioi Diakknvikensis Somborger. 



Sciitropterns sabriniis makkovikeusis Sornborger, Ottawa Xat., 

 XIV, 1900, p. 48. 

 Makkovik Flyixg Squirrel. 



Type locality. Makkovik, Labrador. 



Geogr. Distr. Labrador. Range unknown. 



Genl. Char. Size large, color dark. 



Color. Similar to 5. sabriiuis but darker above, beneath whitish; 

 tail sooty, basal half darkest. 



Measurements. Total length, ■ ; tail vertebrae, ; hind foot, 



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

 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. ScimopfeTns Sfthrinu.s si/ti.^ (Bangs). 



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



Sciitropterns sabriuits silus Elliot, Syn. N. Am. Mamm., F. C. M. 

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

 PuG-xosED Flyixg Squirrel. 



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

 brier County, West Virginia. 



Geogr. Distr. Probably the higher southern Alleghanies. 



243. Sciuropterus \ukonensis Osgood. 



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

 25. Elliot, Syn. N. Am. Mamm., F. C. M. Pub., 11, 1901, 

 Suppl., p. 428. Zool. Ser. 

 YuKOX Flyixg 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, 175S, p. 63; i, 1766,' p. 85. {Mus 



nee Sciurus, p. 88.) 

 Sciurus volucella Pallas, Nov. Spec. Quad. GHr., 1778, p. 351. 

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



II, 1901, p. 109, fig. 25. Zool. Ser. Id. Mamm. Middle Amer. 



& W. Indies, F. C. M. Pub., iv,"Pt. i, 1904, p. 158, figs. 29, 



XXXIII. Zool. Ser. 

 CoMMOx Flying Squirrel. 

 Type locality. Virginia. 



Geogr. Distr. Northern New York and southern New Hampshire 

 south to Florida, west to the plains. 



