148 CITELLUS. 
Measurements. Total length, 233; tail vertebre, 58; hind foot, 
39. Skull: total length, 41; Hensel, 33; zygomatic width, 25; inter- 
orbital width, 15; palatal length, 18; width of braincase above 
zygomata, 20; length of upper tooth row, 8; length of mandible, 
id 
angle to alveolus of incisor, 19; length of lower tooth row, 7.5. 
D. Otospermophilus, Brandt. 
“Skull broad; molars small; edge of outer wall of antorbital 
foramina not thickened; coronoid processes of lower jaw long and 
slender; ears very large; tail long, full, bushy.’’ 
Fic. 27. CITELLUS (OTOSPERMOPHILUS) VARIEGATUS. 
No. (1250) 4944 Field Columbian Mus. Coll. Nat. size. 
fll. variegatus (Sczurus), Erxl., Syst. Régn. Anim., 1, 1777, p. 421 
Nelson, Science, 1808, p. 898. 
