196 BULLETIN 128, UNITED STATES NATIONAL MUSEUM. 



*Ammospermophilus leucurus peninsulae (Allen). 



1893. Tamias leucurus peninsulse Allen, Bull. Amer. Mus. Nat. 



Hist., vol. 5, p. 197. August 18, 1893. 

 1907. Ammospermophilus leucurus peninsulse Mearns, Mamm. 



Mex. Boundary, p. 299. April 13, 1907. 

 Type Locality.— San Telmo, Lower California, Mexico. 



*Ammospermophilus leucurus vinnulus (Elliot). 



1903. Citellus l[eucurus] vinnulus Elliot, Field Columb. Mus., 



publ. 87, zool. ser., vol. 3, p. 241. December, 1903. 

 1912. Ammospermophilus leucurus vinnulus Miller, North 



Amer. Land Mamm., 1911, p. 318. December 31, 1912. 

 Type Locality. — Keeler, Owens Lake, Inyo County, California. 



t* Ammospermophilus nelsoni nelsoni (Merriam). 



1893. Spermophilus nelsoni, Merriam, Proc. Biol. Soc. Wash- 

 ington, vol. 8, p. 129. December 28, 1893. 



1909. Ammospermophilus nelsoni Lyon and Osgood, List 

 Type Spec. Mamm. U. S. Nat. Mus., p. 172. 



Type Locality — Tipton, San Joaquin Valley, Tulare County, 

 California. 



Ammospermophilus nelsoni amplus Taylor. 



1916. Ammospermophilus nelsoni amplus Taylor, Univ. Calif. 



Publ. Zool., vol. 17, p. 15. October 3, 1916. 

 Type Locality. — Twenty miles south of Los Banos, Merced 



County, California. 



Genus CYNOMYS Rafinesque.^^ (Prairie-dogs.) 



1817. Cynomys Rafinesque, Amer. Monthly Magazine, vol. 2, 

 p. 45. November, 1817. Type, Cynomys socialis Rafines- 

 que =^rc^om?/s ludoviciana Ord. 



Subgenus CYNOMYS Rafinesque. 



* Cynomys ludovicianus ludovicianus (Ord). 



1815. Arctomys ludoviciana Ord, Guthrie's Geography, 2d 

 Amer. ed., vol. 2, p. 292. Description on page 302. 



1857. Cynomys ludovicianus Baird, Mamm. N. Amer., p. xxv. 



1885. Cynomys ludovicianus True, Proc. U. S. Nat. Mus., vol. 7 

 (1884), p. 593. 1885. 



1905. Cynomys pyrrotrichus Elliot, Proc. Biol. Soc. Washing- 

 ton, vol. 18, p. 139. April 18, 1905. (White Horse Spring, 

 Woods County, Oklahoma.) 



Type Locality. — Upper Missouri River ("vicinity of the 

 Missouri, and tliroughout the greater part of Louisiana"). 



'• Revised by Hollister, North Amer. Fauna, No. 40, June 20, 1916. 



