54. z.vMKNis. 391 



Masticopliis tteniatus, Baird Sf Gir. Cat. N. A7n. liepf. p. 103 (IS.').'?), 

 and lit'p.Kiplor. Suro. It. R. x., Rept. pi. xxiii. (ISoU) ; Jan^ Icon. 

 Ghi. 22, pi. V. (1867). 



ornatus, Baird ^- Gir. I. c. pp. 102, 159. 



schotti, Baird Sf Gir. I. c. p. 100. 



Leptopliis lateralis, Hallow. Prnc. Ac. Philad. 1853, p. 237, and 

 Rep. Explur. Siirv. R. R. x., Rcpt. p. 13, pi. iv. fig. 3 (^1859). 



Herpetodryas Havig-ularis, part., Gilath. Cat. p. 118 (1858). 



Drymobius tfBniatus, Cope, Proc. Ac. Philad. 1800, p. 501. 



aurigulus, Cope, Proc. Ac. Philad. 1861, p. 301. 



Masticopliis bilineatus, Ja/i, I. c. pi. vi. fig. 2. 



Bascanium taeuiatuni, Cope, Check-Liat N. Am. Rept. p. 40 (1875); 

 Bocourt, Miss. Sc. Me:i:, Rept. p. 703, pi. xlv. fig. 5, & xlviii. fig. 8 

 (1890); Cope, Proc. U.S. Nat. Mus. xiv. 1892, p. 629. 



auriguluui, C'cy^e, /. c. 



t^niatum laterale, Yarroiv, Wheeler's Rep. v. p. 543 (1875). 



Coluber tajuiatus, Gar man, N. Am. Rept. p. 46 (1883). 



Bascanium laterale, Bocourt, I. c. p. 706, pi. xlviii. tig. 6 ; Co^w, Proc. 

 U.S. Nat. Mus. xiv. 1892, p. 628. 



semiliueatuin. Cope, I. c. p. 626. 



schottii, Cope, I. c. p. 629. 



ornatuui, Cope, I. c. p. 629. 



Snout rather prominent. Rostral nearly as deep as broad, the 

 portion visible from above not quite half as long as its distance from 

 the frontal ; internasals as long as or shoi-ter than tlie pra^frontals ; 

 frontal not or but slightly broader than the supraocular, once and a 

 half to once and three fourths as long as broad, as long as or a little 

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

 slightly shorter than the parietals ; loreal longer than deep ; one 

 praeocular, with a subocular below it ; two postoculars ; temporals 

 2 + 2 ; eight upper labials, fourth and fifth entering the eye ; four 

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

 posterior chin-shields longer than the anterior, and separated from 

 each other b}- scales. Scales smooth, in 15 or 17 rows. Ventrals 

 very obtusely angulate laterally, 196-209 ; anal entire or divided; 

 subcaudals 115-157. Brown or blackish above, striped with lighter. 



Total length 1330 millim. ; tail 410. 



Southern United States, west of the Mississippi ; Northern 

 Mexico. 



A. Sides with black or reddish-brown and yellow longitudinal lines ; 

 belly uniform yellow. {L. tceniata, Hallow.) 



a. c? (Sc. 17; V. 199; C. 132). N. America. 



h. (S (Sc. 17; V. 190; C. 134). Presidio, Mexico. Mr. A. Forrer [C.]. 



B. Sides with black and yellow longitudinal lines ; beUy mottled with 

 gre)', with a yellowish stripe on each side. (M. ornatiis, B. ik G.) 



c. Ad., skin (Sc. 15 ; V. 203 ; Coahuila, Mexico. W. Taylor, Esq. 

 C. 141). [C.J. 



