REPTILES. 



15 



complete of large scales,) and the labials. Upper labials 11-13, lower 12-13. Dorsal rows of scales 

 21, slightly carinated; each scale along the middle of the back with a tubercular swelling toward 

 the centre. Crown tubercular. Entire head and upper parts of a light yellowish, with a dorsal series 

 of small indistinct blotches, below which are several irregular rows of isolated brown dots. A narrow 

 brown stripe extends from the orbit back over the angle of the mouth. — (Kennicott.) 



No. 482. Colorado river, California. A. Schott. Deserts of Gila and Colorado. 



68. CROTALOPHORUS CONSORS, B. & G. 



Crotalophorus consors, B. & G. Catal. N. A. Serp., Jan. 1853, 12. 



Sp. Ch. — Twenty-five rows of dorsal scales all carinated, except the two first on either side. Color 

 olivaceous brown, with seven Beries of deeper blotches, one dorsal, and three on each side; the dorsal 

 series rather small and transverse. Yellowish white line from nostril passes between the eye and pit, 

 and along the upper labials to the angle of the mouth. — (Kennicott.) 



No. 512. Indianola, Texas. J. H. Clark, 



69. CROTALOPHORUS EDWARDSII, B. & G 



Plate V, Fig. 1. 



Crotolophorus edwardsii, B. & G. Catal. N. Am. Serp., Jan. 1853, 15. 



Sp. Ch.— Twenty-three rows of dorsal scales, two first rows smooth. Vertical plate sub-pontagonal, 



tapering to an acute point posteriorly. Color light yellowish brown, with chestnut blotches lighter than 



C. tergeminus or C. consors. Lateral blotches proportionally small. Yellowish line from nostril to angle 

 of mouth as in G. consors. No vertebral reddish line. — 



No. 506. Sonora. J. H. Clark. — 511. Brownsville, Texas. J. H. Clark. 



70. TOXICOPHIS PUGNAX, B. <fe G.— Moccasin 



Plate VI. 



Toxicophis pugnax , B. & G. Catal. N. Am. Serpents, Jan. 1853, 20. 

 Sp. Ch — No loral plate. Second labial pressed out of place and with its apex alone on the edge 



mouth. Twenty-five dorsal rows, i 

 uniform light colored. — (Kennicott.) 



zigzag bands. Cheeks 



4262. Indianola, Texas. J. H. Clark.— 42G3. Eagle Pass, Texas. A. Schott. 



71. ANCISTRODON CONTORTRIX, B. & G .—Copperhead. 



Boa contortrix, Linn. Syst. Nat. I, 1766, 273. 

 Agkutrodon contortrix, B. & G. Catal. Serp. 1823, 17. 



567. Indianola to San Antonio. J. H. Clark. — 571. Sabinal, Texas. J. H. Clark 



72. ELAPS TEtfER, B. & G.— Coral Snake 



Plate VII, Fig. 1. 



Flaps tener, B. & G. Catal. S. Am. Serp. Jan. 1853, 22. 



Sp. Ch. — Head narrow and elongated for the genus, omtinuous with the neck and body. Body fawn- 

 colored (in alcohol) annulated with black and yellow. The yellow ambulations separating the bl k and 



