REPTILES. 



7 



lighter; the interstices here and there dark brown. Chin and throat reticulated. Neither black collar 

 nor light spots. More closely related to Crotaphytus collaris than to Crotaphytus (Gambelia) urislizenii. 



2692. Ringgold Barracks, Texas. J. H. Clark.— 2731. Laredo, Texas. A. Schott 



24. CROTAPHYTUS WISLIZENII, B. <fe G. 



Plate XXXI. 



Crotaphytus vnslizenii, B. & G. Pr. A. N. Sc. VI, April, 1852, 69. 

 Crotaphytus gambelii, B. & G. Pr. A. N. Sc. VI, Aug. 1862, 126. 

 Crotaphytus fasciatus, Hallo-well, Pr. A. N. Sc. VI, Dec. 1852, 207. 



2704. San Antonio to El Paso. J. II. Clark.— 2G85. Sonora. J. II. Clark 



25. UTA STANSBURIANA, B. & (J. 



Ufa stansburiana, B. &. G. Pr. A. X. Sc. VI, April, 1852, 69. 



2745- frui Antonio to El Paso. J. H. Clark.— 2740. Gila <I »rt A. Schott 



26- UTA ORNATA, B. & G. 



ornata 



2700. San Pedro, Texas. J. H. Clark.— 2764. Eagle Pass, Texas. A. Schott.— 27.37 



Sonora. J. II. Clark. 



27. UTA ORNATA var. LINEARIS, Baird. 



Similar in markings to the described character of U. ornata, but with four linear interrupted black 

 stripes instead of transverse bands. 



2759. Los Nogales, Sonora. Dr. Kennedy. 



28. UTA SYMMETRICA, Baird. 



Via symmetrica, Baird, Pr. A. X. Sc. Dec 1858. 

 Sp. Ch. — Larger dorsal scales in four regular seri< , two on either Bide of the median smallor ones. 



depressed 



head 



body. General color light brown above, the belly white. Sides with broad transverse bands of blackish. 



Size of U. ornata. 



27C0. Gila river. A. Schott. 



29. UTA SCIIOTTII, Baird. 



Uta schollii , Baird, Pr. A. > T . Sc. Dec. 1858. 



Sp. Ch. — Dorsal scales and size as in the last. Head pointed, narrow, nearly or quite as high as wide. 

 General color nearly black, scarcely lighter beneath. Hack with small blue spots. Tail banded laterally 

 with the same. 



3761. Santa Madelina. A. Schott. 



30. UTA GRACIOSA, Baird. 



f rosauriis graciosus, IIallowi L, Pr. A. V Sc. VTI, June, 1854, 92. 

 4128. Colorado river California. A. Schott. 



