CYNOMYS. MARMOTA. 119 



Genl. Char. Two-thirds of tail white; dentition weak. 



Color. Above dull rufous, hairs posteriorly tipped with dusky; 

 top of head and cheeks mixed with black; black spot above eye; 

 thighs and fore legs yellowish rufous; beneath yellowish buff; tail, 

 basal third like body, remainder white. 



Measurements. Hind foot (skin), 53; none other given. 



234. Cynomys mexicanus Merriam. 



Cynomys mexicanus Merr., Proc. Biol. Soc. Wash., vii, 1892, p. 

 157. Elliot, Mamm. Middle Amer. & W. Indies, F. C. M. 

 Pub., IV, Pt. I, 1904, p. 156. Zool. Ser. 

 Mexican Prairie-dog. 



Type locality. La Ventura, State of Coahuila, Mexico. 

 Geogr. Distr. Northern and eastern Mexico. 



Genus 54. Mariuota. Woodchucks. 



* Marmota Frisch, Natur-Syst. vierfiiss. Thiere, in Tabellen, 9, 1775. 



Type ? 



Mus Linn., Syst. Nat., i, 1758, p. 60. (Part.) 



Glis Erxleb., Syst. Regn. Anim., 1777, p. 358. (Part, nee Bris- 



son, 1762.) 

 Arctomys Schreb., Saugth., iv, 1780, pp. 721-743, pis. ccvii- 



ccxi. 

 Lipiira Illig., Prodr. Syst. Mamm. et Av., 1811, p. 95. 



235. Marmota monax (Linnaeus). 



Mus monax Linn., Syst. Nat., i, 1758, p. 60. 

 Arctomys monax Elliot, Syn. N. Am. Mamm., F. C. M. Pub., 11, 

 1901, p. 105, fig. 24. Zool. Ser. 



WOODCHUCK. 



Type locality. Maryland. 



Geogr. Distr. From New York to Georgia, west to the Dakotas, 

 intergrading in the Alleghanian and Canadian faunae with next three 

 species. 



a. Marmota inonax ignuviis (Bangs). 



Arctomys ignavus Bangs, Proci N. Eng. Zool. Club, 1899, p. 13. 

 Arctomys monax ignavus Elliot, Syn. N. Am. Mamm., F. C. M. 

 Pub., II, 1901, p. 105. Zool. Ser. 



*Marmota of Frisch includes the following species: Mus alpinus, Mar- 

 mota polonica, Cricetus, Europe; and Gerboa, Africa. 



