CITELLUS., 139 
at the mouths of their burrows, vigilant watchmen of danger’s 
approach. The different species are striped, spotted, or otherwise 
marked in various colors, and some are exceedingly pretty creatures. 
36. Citellus, 
I—I , 2—2. aed | DA 
Li; P22; M3 = 22. 
Citellus Oken, Lehrb. der Zodl., 1, 1816, p. 842. Type Mus citellus 
Linneus. 
Spermophilus F. Cuv., Mem. Mus., vi, 1825, PD. 2032; 
Spermatophilus Wagl., Syst. Av. Amphib., 1830, p. 22. 
Citillus Lichten., Darst. neuer oder wenig bekannt. Saugeth., Heft 
5, 1627—34, pl. XXXI, fig. 2. 
Colobots Brandt, Bull. Classe Phys-math. Acad. Imp. Scien. St. 
Petersb., 11, 1844, p. 36s. 
Otospermophilus Brandt, Bull. Classe Phys-math. Acad. Imp. 
Scien. St. Petersb., 11, 1844, p. 379. 
Otocolobus Brandt, Bull. Classe Phys-math. Acad. Imp. Scien. St. 
Petersb., 11, 1844, p. 382. 
’ 
Ictidomys Allen, Mon. N. Am. Rod., 1877, p. 821. 
Spermoplulopsis Blasius, Tag. Deut. Nat. Vers., 1884, p. 324. 
Ammospermoplilus Merr., Proc. Biol. Soc. Wash., vil, 1892, p. 27. 
Xerospermophilus Merr., Proc. Biol. Soc. Wash., vu, 1892, pO: a7, 
Calospermophilus Merr., Proc. Biol. Soc. Wash., 11, 1897, p. 189 
(note). 
FiG. 23. CITELLUS (AMMOSPERMOPHILUS) H. SAXICOLA. 
No, 59469 U.S. Nat. Mus, Coll. Nat, size. 
