202 COLUBRIDJB. 



its distance from the frontal ; suture between the internasals much 

 shorter than that between the pnefrontals ; 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 postoculars ; 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. Venti.tls 

 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-/, rf (V.191, 188; C.52, New Orleans. M. Salle" [C.l. 



49), $ (V. 191, 202; 



C. 46, 50), & hgr. (V. 188, 



191 ; C. 53, 52). 



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

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



12. Coronella zonata. 



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

 Ophibolus pyromelanus, Cope, Proc. Ac. Philad. 18G6, p. 305. 



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



Yarrow, Wheelers Hep. Ea-plor. Surv. W. 100<A Mer. \. pi. xix. 



(1875) ; Cope, Proc. U.S. Aat. Mus. xiv. 1892, p. 010. 

 Bellophis zonatus, Lockington, Proc. Cal. Acad. vii. 1877, p. 62. 

 Coronella multifasciata, JJocourt, Miss. &c. Mex., Rept. p. 010, 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 praefrontals ; 

 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 pra3- and two postoculars ; 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 nupe, 

 not extending to the throat. 



