338 3. IGUANID& 



"These lizards are preyed upon by Crotaphytus wislizenii 

 as shown by an examination of the stomach contents of the 

 latter. They are doubtless also eaten by the Road Runner 

 which is often observed in the Opuntias. The old individu- 

 als in our collection are nearly all maimed, having lost a part 

 of their tail, a varying number of toes, or both." 



Mr. Camp states: "A large orthopterous insect, somewhat 

 chewed, a fly, a beetle, and several other insects were found 

 in one stomach. Another stomach contained a grasshopper, 

 a beetle, a lepidopterous insect, several small red ants, and 

 some pebbles. A third contained a caterpillar, five Coleop- 

 tera, one hemipter, three small red ants, the fruit and green 

 leaves of a small plant (identity uncertain) and a few dry 

 leaves (perhaps taken accidentally)." 



67. Sceloporus rufidorsum Yarrow 

 BELDING'S SCALY LIZARD 



Sceloporus rufidorsum YARROW, Proc. U. S. Nat. Mus., Vol. V, 1882, 

 p. 442 (part), (type locality, San Quintin Bay, [Lower] Calif- 

 ornia); YARROW, Bull. U. S. Nat. Mus., No. 24, 1883, p. 64 (part?); 

 BELDING, West. Amer. Scientist, Vol. Ill, No. 24, 1887, p. 98 

 (part); VAN DENBURGH & SLEVIN, Proc. Cal. Acad. Sci., Ser. 4, 

 Vol. XI, 1921, pp. 51, 60. 



Sceloporus clarki clarki YARROW, Bull. U. S. Nat. Mus., No. 24, 1883, 

 p. 63 (part); BELDING, West Amer. Scientist, Vol. Ill, No. 24, 

 1887, p. 99; COPE, Report U. S. Nat. Mus. for 1898, 1900, p. 361 

 (part?). 



Sceloporus zostfromus VAN DENBURGH, Proc. Cal. Acad. Sci., Ser. 2, 

 Vol. 5, 1895, p. 108 (part); VAN DENBURGH, Proc. Cal. Acad. Sci., 

 Ser. 2, Vol. 5, 1896, p. 1004; MOCQUARD, Nouv. Arch Mus. Hist. 

 Nat. Paris, Ser. 4, Vol. I, 1899, p. 313 (part); COPE, Report U. S. 

 Nat. Mus. for 1898, 1900, p. 356 (part); VAN DENBURGH, Proc. 

 Cal. Acad. Sci., Ser. 3, Zool., Vol. 4, No. I, 1905, p. 23; MEEK, 

 Field Columbian Mus. Nat. Hist., Zool. Ser., Vol. VII, No. I, 

 1906, p. ii; VAN DENBURGH & SLEVIN, Proc. Cal. Acad. Sci., Ser. 

 4, Vol. 4, 1914, p. 144; STEJNEGER & BARBOUR, Check List N. 

 Amer. Amph. Rept., 1917, p. 57 (part). 



