No. 4. 
REPORT IRON THE REPTILES OF THE ROUTE 
BY S. F. BAIRD. 
SCELOPORUS UNDULATUS, Wiegm. 
Stellio undulatus, Latreille, Hist. Rep. II, 18(2, 40. 
Tropidolepis undulatus, Cuvier, R A — Holbrook, N. Am. Herp II, 1842, 73; pi. ix. 
Sceloporus undulatus, Wiegmann, Isis, 1828, 369. 
2874. Near mouth of Poteau river, Arkansas. B. Mollhausen. 
SCELOPORUS SPINOSUS, Wiegm. 
Sceloporus spinosus, Wiegm. Isis, 1828, 369. 
Tropidolepis spinosus, Gray, Syn. Rept. GrifF. An. King. IX, 1831, 43. 
2938. San Antonio, Texas. Dr. Kennerly. 
SCELOPORUS CONSOBRINUS, B. & GL 
Sceloporus consobrinus, B. &. G. Marcy’s Report, 1853, 237. 
2910. Canadian Fork. B. Mollhausen. 
SCELOPORUS THAYERI, B. & G. 
Sceloporus thayeri, B. & G. Pr. A. N. S. VI, August, 1852, 127. 
2907. Coal creek, Arkansas. B. Mollhausen. 
CROTAPHYTUS COLLARIS, Holbrook. 
Agama collaris, Say, Long’s Exped. II, 1823, 252. 
Crotaphytus collaris, Holbrook, N. Am. Herp. II, 1842, 79; pi. x. 
2701 Fort Smith, Arkansas.—2707. Near the Gold mountains, Arkansas.—4106. Coal 
creek of Arkansas.—2715. Near Canadian. B. Mollhausen.—2690. Pecos to Rio Grande. 
Dr. Kennerly. 
CROTOPHYTUS WISLIZENII, B. & G. 
Crotaphytus wislizenii, B. & G. Pr. A. N. Sc. VI, April, 1852, 69. 
New Mexico. Dr. Kennerly. 
UTA STANSBURIANA, B. & G. 
Uta stansburiana, B. & G., Pr. A. N. Sc. VI, April, 1852, 69 .—Ib. Stansbury’s Great Salt Lake, 1852, 345; Reptiles, 
plate v. 
2682. Albuquerque. Kennerly and Mollhausen. 
1 The diagnoses of most of the serpents have been prepared by Mr. Robert Kennicott, and of the toads by Dr. Charles Girard. 
