NORTH AMERICAN RECENT MAMMALS. 191 



t*Citellus plesius ablusus Osgood. 



1903. Citelhis plesius ahlusus Osgood, Proc. Biol. Soc. Washing- 

 ton, vol. 16, p. 25. March 19, 1903. 



Type Locality. — Nushagak, Alaska. 



*Citellus richardsonii (Sabine). 



1822. Arctomys richardsonii Sabine, Trans. Linn. Soc, vol. 13, 



p. 589. 

 1885. Spermophilus richardsoni richardsoni True, Proc. U. S. 



Nat. Mus., vol. 7 (1884), p. 594. 1885. 



1904. [Citellvs] richardsoni Trouessart, Catal. Mamm. viv. 

 foss., suppL, p. 338. 



Type Locality. — Carlton House, Saskatchewan, Canada. 



*Citellus sonoriensis (Ward). 



1891. Spermophilus sonoriensis Ward, Amer. Nat., vol. 25, p. 



158. February, 1891. 

 1912. Citellvs sonoriensis Miller, North Amer. Land Mamm. 



1911, p. 303. December 31, 1912. 

 Type Locality. — Hermosillo, Sonora, Mexico. 



Regarded by Merriam (^Science, n. s., vol. 7, p. 32, January 7, 1898) as a 

 race of C. tereticaudus. 



*Citellus spilosoma spilosoma (Bennett). 



1833. Spermophilus spilosoma Bennett, Proc. Zool. Soc. Lon- 

 don, p. 40. 



1885. Spermophilus spilosoma True, Proc. U. S. Nat. Mus., 

 vol. 7 (1884), p. 594. 1885. 



1904. Citellus spilosoma Allen, Bull. Amer. Mus. Nat. Hist., 

 vol. 20, p. 209. May 28, 1904. 



Type Locality. — "That part of California that adjoins Mex- 

 ico." Name restricted by Merriam (North Amer. Fauna, No. 

 4, p. 37, October 8, 1890) to the animal occurring in north- 

 ern Mexico and extreme western Texas. 



t*CiteIlus spilosoma arens (Bailey). 



1902. Spermophilus spilosoma arens Bailey, Proc. Biol. Soc. 

 Washington, vol. 15, p. 118. June 2, 1902. 



1903. Citellus spilosoma arens Miller amd Rehn, Proc. Boston 

 Soc. Nat. Hist., vol. 31, p. 75. August 24, 1903. 



Type Locality. — El Paso, El Paso County, Texas. 



t*Citellus spilosoma annectens (Merriam). 



1893. Spermophilus spilosoma annectens Merriam, Proc. Biol. 

 Soc. Washington, vol. 8, p. 132. December 28, 1893. 



1904. [Citellvs spilosoma] annectens Trouessart, Catal. Mamm. 

 viv. foss., suppl., p. 340. 



Type Locality. -Padre Island, Cameron County, Texas. 



