APPENDIX F. REPTILES. 203 



This species may prove to be the Coluber testaceus of Say. A 

 specimen from Fort Webster, or the Copper Mines, collected by the 

 U. S. and Mexican Boundary Commission, shows the stripes on the 

 sides much more distinctly, running through all the dorsal rows ante- 

 riorly, and crossed by the indistinct bars already referred to. The con- 

 trast between the dark chestnut brown spots on each side, and its deeper 

 centre, with the clear yellow of the edges, is very distinct. Beneath 

 yellow, with the blotches reduced to mere dull spots. 



VIII. LEPTOPHIS, Bell. 



The body is elongated and very slender, the tail forming more than 

 the third of the entire length. The scales are disposed in 17 dorsal 

 rows and keeled, except the two outer rows, which are smooth. The 

 nostril is situated in the middle of a single plate. The eyes are large. 

 The preanal scutella is bifid or divided. The color uniformly green. 



10. Leptophis majalis, B. & Gr. 



Zoology, PI. IX. 



Spec. char. — Eeddish green above, yellowish white beneath. Body 

 proportionally stouter and tail shorter than in L. cestivus. Snout and 

 whole head, including vertical, longer than in latter species. Dorsal 

 scales in 17 rows. 



Svn. — Leptophis majalis, B. & G. Cat. N. Amer. Rept. 1, 1853, 107. 



Desc. — Head more pointed, broader on the temporal region, and more 

 tapering on the snout than in L. cestivus. Vertical plate subhexagonal, 

 broader, and postfrontals proportionally larger in comparison with the 

 prefontals, than in L. cestivus. Occipitals maintaining more their width 

 posteriorly, obtuse-angled behind. Nasal more elongated ; loral smaller, 

 and longer than high. Two large temporal shields and a few small ones 

 behind. Scales strongly carinated, except the outer row, which is per- 

 fectly smooth, and the second row, which is but slightly carinated. The 

 scales of both of these rows are broader than the rest. 



Total length, 28-^ inches; length of tail, 9f inches. Abdominal scu- 

 tellae, 163 + 1; subcaudal, 111. The specimen figured on Plate IX 

 was caught on the 13th of July at the head of Cache creek, near old 

 Witchita village. 



