No. 4. 

 REPORT UrON THE REPTILES OE THE ROUTE. 



BY S. F. BAIRD. 



SCELOPORUS UNDULATUS, Wiegni. 



SUllio umltilalus, Latreille, Hist. Rep. II, 18(2, 40. 



Tropiilolcpis tniiliilutus, Cuvier, R A — Holekook, N. Am. Herp II, 1842,73; pi. ix. 



Scdoporus uniltiliitus, Wiegmann, Isis, 1828, 369. 



2874. Near mouth of Poteau river, Arkansas. B. Mollhausea. 



SCELOPORUS SPINOSUS, Wiegm. 



Sceloporus spinosus, Wiegm. Isie, 1828, 369. 



TropidoUpis spinosus, GiiaY, Syn. Rept. Giiff. An King IX, 1831, 43. 



2938. San Antonio, Texas. Dr. Kennerly. 



SCELOPORUS CONSOBRINUS, B. & G. 



Sceloporus ronsohrinus, B. &, G. Marcy's Report, 1853, 237. 



2910. Canadian Fork. B. Mollhaiisen. 



SCELOPORUS THAYERI, B. & G. 



Sceloporus Ihaycri, B. & Q. Pr. A. N. S VI, August, 1852, 127. 



2907. Coal creek, Arkansas. B. Mollhausen. • 



CROTAPHYTUS COLLARIS, Ho lb rook. 



Agatiia collaris, Say, Long's Exped. II, 1823, 232. 



Crolaphytus collaris, Holbkook, 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. MoUhausen. — 2690. Pecos to Rio Grande. 

 Dr. Kennerly. 



CROTOPHYTUS WISLIZENII, B. & G. 



Crotopliijtus xoislizmii, B. & G. Pr. A. N. Sc. VI, April, 1852, 69. 



New Mexico. Dr. Kennerly. 



UTA STANSBURIANA, B. & G. 



Uta slansburiana, 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 MoUhausen. 



1 The diagnoses of most of the serpents have been prepared by Mr. Robert Kennicott, and of the toads by Dr. Charles Giiard. 



