202 COlITBEIDiB. 



its distance from the frontal ; sutnre between the internasals much 

 shorter than that between the prsefrontals ; frontal a little longer 

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

 shorter than the parietals ; loreal longer than deep ; one prae- and 

 two postoeulars; temporals 2 + 2 or 2 + 3; seven (rarely eight) 

 upper labials, third and fourth entering the eye ; four lower labials 

 in contact with the anterior chin-shields, which are usually longer 

 than the posterior. Scales in 21 (rarely 23) rows. Ventrals 

 obtusely angulate laterally, 179-210 ; anal entire ; subcaudals 

 44-53. Scarlet, with pairs of black rings enclosing a yellow one ; 

 these rings may be interrupted on the belly, and the black nuchal 

 band never extends across the throat ; the greater part of the upper 

 surface of the head black. 



Total length 490 millim. ; tail 80. 



Southern United States, North Mexico. 



a-/, d" (V. 191, 188; 0.52, Ng^ Orleans. M. Sallfi [0.]. 



49), ? (V. 191, 202; 



0. 46, 50), & hgi-. (V. 188, 



191 ; 0. 53, 52). 

 g. Hgr. (V. 188 ; 0. 48). Texas. 



h. Hgr. (V. 179; 0. 49). N. America. Sir R. Murchison [P.]. 



12. Coronella zonata. 



Coluber (Zacholus) zonatus, Blainv. N. Ann. Mus. iv. 1835, p. 293. 



Ophibolus pyromelanus. Cope, Proc. Ac. Pkilad. 1866, p. 305. 



• pyrrhomelas. Cope, Check-list N. Am. Rept. p. 37 (1875) ; 



Yarrow, Wheelers Rep. Explor. Surv. W. lOOi/j Mer. v. pi. xix. 



(1876) ; Cope, Proc. U.S. Nat. Mus. xiy. 1892, p. 610. 

 Bellophis zonatus, Lockington, Proc. Cal. Acad. vii. 1877, p. 52. 

 Coronella multifasciata, Pocourt,'Miss. Se. Mex., Sept. p. 616, pi. xl. 



fig. 2 (1886). 



Body compressed in its posterior half. Snout slightly prominent ; 

 rostral about once and a half as broad as deep, the portion visible 

 from above hardly one third its distance from the frontal ; suture 

 between the internasals shorter than that between the prsefrontals ; 

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

 end of the snout, shorter than the parietals ; loreal longer than 

 deep (rarely absent) ; one prse- and two postoeulars ; temporals 

 2 + 3 ; seven upper labials, third and fourth entering the eye ; four 

 lower labials in contact with the anterior chin-shields, which are 

 longer than the posterior. Scales in 21 (or 23) rows. "Ventrals 

 obtusely angulate laterally, 198-224 ; anal entire ; subcaudals 

 45-66. Scarlet, with pairs of blacks rings enclosing a yellow one ; 

 these rings very numerous (47-55) and close together on the pos- 

 terior half of the body, where the red interspaces are scarcely 

 wider than the yellow rings or may disappear altogether ; head 

 black anteriorly, yellow posteriorly ; a black band across the nape, 

 not extending to the throat. 



