76 LACERTILIA. 
the middle of the back. The temples are covered with moderately-sized imbricate 
scales, and not partly granular as in S. variabilis. 
Size of adult male 3 inches without tail. 
28. Sceloporus fulvus. 
Sceloporus fulvus, Bocourt, Miss. Sc. Mex., Rept. p. 214, t. 18 bis. figg. 8, 8 a—c; Boul. Cat. Liz. ii. 
p: 238. 
Hab. Satvapor, La Union (Mus. Paris); Nicaracva (Boulenger). 
Thirty-two scales in a series from the occipital to the base of the tail; a row of large 
supraoculars; a single canthal scale. Length of the fourth toe equal to the distance 
between the end of the snout and the collar-fold. Three or four femoral pores. Sides 
darker than the back, a yellow longitudinal band between the back and sides; the back 
between the bands with a double series of oblique dark brown spots. Lower parts 
uniform yellowish in both sexes. 
Length 12 inch without tail. 
29. Sceloporus siniferus. 
Sceloporus siniferus, Cope, Proc. Am. Phil. Soc. xi. p. 159 (1871); Bocourt, Journ. Zool. v. p. 342 
(1876); Boul..Cat. Liz. ii. p. 237; Sumichrast, Bull. Soc. Zool. v. 1880, p. 177. 
Sceloporus humeralis, Bocourt, Miss. Sc. Mex., Rept. p. 206, t. 18 bis. figg. 3, 3 a, b. 
Hab. Maxico, Omilteme in Guerrero (H. H. Smith), Acapulco, Oaxaca (Sallé), Tehuan- 
tepec (Sumichrast). 
Twenty-seven scales in a series along the middle of the back. The large supraoculars 
in a single, undivided row. Hind limb longer than the distance between the vent and 
collar; fourth toe nearly as long as the distance between the shoulder and end of the 
snout. From four to eight femoral pores. Brownish, sides darker, upper and lateral 
parts more or less distinctly spotted with darker; lower parts yellowish, throat some- 
times with oblique blackish lines. Axil of the fore limb not black. 
Adult specimens are 2 inches long without tail. 
D. The scales on the sides granular. 
80. Sceloporus utiformis. 
Sceloporus utiformis, Cope, Proc. Ac. N. Sc. Phil. xvi. p. 177; Bocourt, Miss. Sc. Mex., Rept. 
p- 208, t. 18 bis. figg. 6, 6a, b. 
Hab. Mexico, Colima (Xantus). 
Forty scales between the occipital and the base of the tail; ten dorsal scales are 
contained in the length of the shielded part of the head. A row of large supraoculars. 
Femoral pores thirteen or fourteen. Blackish above, with numerous indistinct lighter 
