392 COLtTBRID^. 



C. Blackisli above, with a yellow stripe along each side of the back ; 

 belly uniform yellow. (L. lateralis, Hall.) 



d. cS (Sc. 17; V. 199; C. 115). Los Aiigelos, Call- Mr. Gruber [C.]. 



fornia. 



10. Zamenis pulcherrimus. 



Masticophis pulclierriuiiis, Cope, Proc, Ac. Philad. 1874, p. 65. 

 Drymobius pulcherrimus. Cope, Bull. U.S. Nat. Mus. no. 32, 1887, 

 p. 70 ; Bocourt, Miss. Sc. Mex.,Re2it. p. 725, pi. xlix. fig. 3 (1890). 



Snout moderately projecting, obtuse. Ilostral as deep as broad, 

 the portion visible from above measuring about half its distance 

 from the frontal : internasals a little shorter than the prajfroutals ; 

 frontal not wider than the supraocular, about twice as long as broad, 

 longer than its distance from the end of the snout, as long as 

 the parietals ; loreal much longer than deep (in one specimen 

 divided into two) ; one praeocular ; two postoculars ; temporals 

 2 + 2 ; nine upper labials, fourth, fifth, and sixth entering the eye; 

 five lower labials in. contact with the anterior chin-shields ; posterior 

 chin-shields longer than tbe anterior, and separated from each other 

 by scales. Scales smooth, in 17 rows. Yentrals very obtusely angu- 

 late laterally, 191-205 ; anal divided; subcaudals 133-152. Dark 

 olive above, with three whitish stripes, anteriorly olive with four 

 black stripes ; a black stripe on each side of the head, passing 

 through the eye ; upper lip and lower parts white. 



Total length 1110 millim. ; tail 370. 



Tehuantepec. 



a-b. 2 (V. 20] ; C. 133) Tehuantepec. F, Samichraat [C.]. 



& yg. (V. 191 ; C. 134). 

 c-d. c? (V. 194 ; C. P) & City of Tehuantepec. Dr. A. C. BiiUer [CI. 



? (V. 198 ; C. 139). 



11. Zamenis mexicanus. 



Zamenis mexicanus, Dum. 8f Bibr. vii. p. 695 (1854) ; Bocourt, Miss. 



Sc. Mex., liejjt. p. 664, pi. xlvi. fig. 5 (1888). 

 Masticophis- mexicanus, Jan, Blenco, p. 65 (1863), and Icon. Gen. 



22, pi. vi. fig. 1 (1867). 

 Phimothyra mexicana, Cope, Proc. Ac. Philad. 1864, p. 167. 

 Lytorhynchus mexicanus, Cope, Proc, Am. Philos. Soc. xviii. 1379, 



p. 266. 

 Coluber mexicanus, Garm. N. Am. Bept. p. 45 (1883). 

 Salvadora mexicana. Cope, Bull. U.S. Nat. Mus. no. 32, 1887, p. 72, 



and Proc. U.S. Nat. Mus. xiv. 1892, p. 619. 



Snout moderately projecting, obtuse. Eostral a little deeper than 

 broad, the portion visible from above nearly as long as its distance 

 from the frontal ; internasals a little shorter than the pra^frontals ; 

 frontal scarcely wider than the supraocular, once and two thirds as 

 long as broad, a little longer than its distance from the end of the 

 snout, as long as the parietals ; loreal longer than deep ; one or two 

 praeoculars ; two or three postoculars ; temporals 2 + 2 ; nine 

 upper labials, fourth, fifth, and sixth entering the eye ; five lower 



