NORTH AMERICAN LAND MAMMALS. 295 



"^Cynomys pyrrotrichus Elliot. 



1905. Ci/nomys pyrrotrichus Elliot, Proc. Biol. Soc. Washing- 

 ton, vol. 18, p. 139. April 18, 1905. 

 Type Locality. — Wliite Horse Spring, Woods County, Okla- 

 homa. 



Genus CITELLUS Oken.' 



1816. Citellus Okex, Lehrbuch der Zoologie, vol. 2, p. 842. 

 1825. Spermophilus Cuvier, Dents des Mamm., p. 160. 



1902. Citellus Allen, Bull. Amer. Mus. Nat. Hist., vol. 16, p. 375. 

 October 11, 1902. 



Type, ALus citellus Linn^us. 



t*Citellus adocetus Merriam. 



1903. Citellus adocetus Merriam, Proc. Biol. vSoc. Washington, 

 vol. 16, p. 79. May 29, 1903. 



Type Locality. — La Salada, 40 miles south of Uruapan, Alich- 

 oacan, Mexico. 



*Citellus annulatus (Audubon and Bachman). 



1842. Spermophilus annulatus Audubon and Bachman, Journ. 



Acad. Nat. Sci. Philadelphia, vol. 8, pt. 2, p. 319. 

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



vol. 7 (1884), p. 595. 1885. 

 1903. Citellus annulatus Merriam, Proc. Biol. Soc. Washington, 



vol. 16, p. 79. May 29, 1903. 

 Type Locality. — Uniaiown; probably in western Mexico. 



t*Citellus annulatus goldmani (Merriam). 



1902. Spermophilus annulatus goldmani j\Ierriam, Proc. Biol. 

 Soc. Washington, vol. 15, p. 69. March 22, 1902. 



1903. Citellus annulatus goldmani Miller and Rehn, Proc. Bos- 

 ton Soc. Nat. Hist., vol. 31, p. 74. August 27, 1903. 



Type Locality.— Santiago, Territory of Tepic, Mexico. 



t*Citellus armatus (Kennicott). 



1863. Spermophilus armatus Kennicott, Proc. Acad. Nat. Sci. 



Philadelphia, p. 158. 

 1891. Spermophilus armatus Merriam, North Amer. Fauna, 



No. 5, p. 38. July 30, 1891. 



I The foUowiii:^ subgenera have been recently used for various members of this penii.s: Otospcrmophilus 

 Brandt (Bull. Class. Phys.-Math. Acad. Imp. Sci. St. PetersbourK, vol. 2, p. 379, 18-10), for C. grammuTUx 

 and its allies (regarded as a distinct genus by Meams, Bull. U. S. Nat. Mus., No. 56, p. 311, March If), 1907); 

 X eras pernio philiis Merriam (Proc. Biol. Soc. Washington, vol. 7, p. 27, April 13, 1893), for C. mohavcnsia 

 (type) and the allied species of the spilosoma group; Ictidomoides Mearn.s (Bull. U. S. Nat. Mus., No. 56, p. 

 328, March 15, 1907), for C. mexicanus; and Ictidomys Allen (Monogr. N. Amer. Rodentia, p. 821, August, 

 1377), for C. tridecemlineatus (see Merriam, Science, n. s., vol. 2, p. 418, September 27, 1895). Until the 

 entire genus, including the Old World species, can be definitely revised it seems preferable to disregard 

 these subordinate groups. 



