304 VERTEBRATES : REPTILES. 



cophis Coach-whip Snakes has the general features 

 of the preceding one, but is more slender ; length four 

 to five feet or more. Six species inhabit the Southern 

 and Southwestern States. 



The Genus Leptophis comprising the Green Snakes 

 of the Southern and Southwestern States has a conical 

 head, very small neck, and very long tail ; length twenty 

 to thirty inches. 



The Genus Chlorosoma is represented by the Green 

 Snake, C. vernalis, B. & G., of the Northern States and 

 southward, which, is uniform green, darker above and 

 lighter beneath ; length twelve to twenty inches. 



The Genus Contia is represented by C. mitis, B. & G., 

 of the Pacific Slope, which is brown, with two longitudi- 

 nal light bands, below which is a series of black dots. 



The Genus Diadophis Ring-necked Snakes has 

 the head distinct, body slender, color uniform, with a light 

 ring on the occipital region ; length ten to twenty inches. 

 Three or four species are. found in the United States. 



The Genus Rhinostoma is represented by the Scarlet 

 Snake, R. coccinea, Holbr., of the Southern States, which 

 is crimson, crossed by pairs of black rings enclosing a yel- 

 low one ; length twelve to eighteen inches. 



The Genus Rhinocheilus contains R. Lecontii, B. & G., 

 of California, which is crossed by about thirty-three quad- 

 rate black blotches ; length about twenty inches. 



The Genus Haldea contains the Brown Snake, H. stria- 

 tula, B. & G., of the Southern States, which is grayish 

 above, salmon beneath ; length eight to nine inches. 



The Genus Farancia contains the Red-bellied, or Horn 

 Snake, F. abacurus, B. & G., of the Southern States, which 

 is bluish black, with subquadrate red spots on the flanks ; 

 under parts red, with bluish black irregular spots ; length 

 about thirty inches. 



The Genus Abastor is represented by A. erythrogram- 



