NORTH AMERICAN LAND MAMMALS. 295 



*^Cynomys pyrrotrichus Elliot. 



1905. Oynomys pyrrotrichus Elliot, Proc. Biol. See. Washing- 

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

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

 homa. A / 



Genus CITELLUS Oken.» ^kw*-w«-^ «|^'**'«''»'^-*«'^^ 



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

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



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

 October 11, 1902. 



Type, Mus citellus Linnaeus. 



t* Citellus adocetus Merriam. 



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

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



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

 oacan, Mexico. 



*Citellus annulatus (Audubon and Bachman). 



1842. Spermopldlus annulatus Audubon and Bachman, Journ. 



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

 1885. SpermopMlus 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 LoCx\lity. — Unknown; probably in western Mexico. 



t*Citellus annulatus goldmani (Merriam). 



1902. SpermopMlus annulatus goldmani Merriam, 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. SpermopMlus armatus Kennicott, Proc. Acad. Nat. Sci. 



Philadelphia, p. 158. 

 1891. SpermopMlus armatus Merriam, North Amer. Fauna, 



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



I The foUoT^'ins subgenera have been recently used for various members of this genus: OlospcrmophUus 

 Braxut (Bull. Class. Phys.-Math. Acad. Imp. Sci. St. Petersbourg, vol. 2, p. 379, 1S49), for C. grammuTUs 

 and its allies (regarded as a distinct genus by Mearns, Bull. U. S. Nat. Mus., No. 56, p. 31-1, March 15, 1907); 

 Xerospcrmophilus Merriam (Proc. Biol. Soc. Washington, vol. 7, p. 27, April 13, 1S93), for C. mohavensis 

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

 32S, March 15, 1907), for C. mcxicanm; and Ictidomys Allen (Monogr. N. Amer. Rodentia. p. S21, August, 

 1877), for C. tridecemUneatus (see Merriam, Science, n. s., vol. 2, p. 41S, Septemljcr 27, 1895). Until the 

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

 these subordinate groups. 



