200 COLCBR1D.E. 



and a small oblique black spot on the temple ; belly yellowish, with 

 a few black blotches ; an interrupted black stripe along the lower 

 surface of the tail. 



Total length 610 millira. ; tail 95. 



Xuevo Leon, North Mexico. 



. $ (V. 200; C. 61). N.Leon. W. Taylor, Esq. [C.]. (Type.) 



10. Coronella triangnlum. 



Coluber triangulum, Daud Kept, vi. p. Ml (1803). 



eximius (non Harl.}, Holbr. N. Am. llcrp. iii. p. 69, pi. xv. 



(1842) ; DeKay, N. Y. Faun. iii. p. 38, pi. xii. fig. 25 (1842) ; 



Giinth. Cat. p. 91 (1858). 

 Pseudoelaps Y, Berth. Abh. Ges. Wiss. Giitthiy. i. 1843, p. 67, pi. i. 



figs. 11 & li'. 

 Ophibolus eximius, Baird # Gir. Cat. N. Am. Rept. p. 87 (1863). 



clericus, Baird 4" Gir. 1. c. p. 88. 

 Ablabes triangulum, Dum. fy Bibr. vii. p. 315 (1854) ; Hallow. Proc. 



Ac. Philad. 1856, p. 244. 



Lampropeltis triangula, Cope, Proc. Ac. Philad. 1860, p. 256. 

 Coronella eximia, Jan, Arch. Zool. Anat. Phys. ii. 1863, p. 242, and 



Icon. Gin. 17, pi. i. fig. 3 (1866). 

 doliata (typica), Jan, II. cc. p. 241, Icon. 14, pi. iv. fijr. A 



(1865) ; Bocourt, Miss. Sc. Mex., Rept. p. 609, pi. xxxix. fig. 2 



(1886). 

 Ophibolus doliatus triangulum, Cope, Check-list N. Am. Rept. p. 4 



(1875); and Proc. U.S. Nat. Mm. 1888, p. 381 (1889), and Am. 



Nat. 1893, p. 1067, pi. xxiv. n>. 1. 

 triangulus, Garm. N. Am. Rept. p. 65, pi. v. fig. 1 (1883) ; H. 



Garm. Bull Him. Lab. iii. 1892, p. 2i. 

 doliatua parallelus, clericus, et collaris, Cope, Proc. U.S. Nat. 



Mtis. xi. 1888, p. 383, & xiv. 1892, p. 608, and Am. Nat. 1893, 



p. 1067, pis. xxiv., xxv., <fc xxvii. 

 doliatus temporalis, Cope, Am. Nat. 1893, p. 1068, pi. xxv. 



fig. 4. 



- doliatus, Hy,Batr. fyRept. Indiana, p. 107 (1893). 



Snout not prominent ; rostral twice as broad as deep, the portion 

 visible from above measuring one third to one half its distance from 

 the frontal ; suture between the internasals one third to two thirds 

 the length of that between the praefrontals ; frontal nearly as broad 

 as long or little longer than broad, as long as its distance from the 

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

 one pra> and two postoculars ; temporals 2 4- 2, 2 + 3, or, rarely, 1 + 2 ; 

 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 (rarely 19) rows. Ventrals 184-214; 

 anal entire ; subcaudals 43-55. Above with largo brown or red, 

 black-edged, elliptic, transverse spots separated by narrow yellowish 

 or greyish cross bars, which widen towards the abdomen; a lateral 

 series of smaller spots, alternating with the dorsals ; a black oblique 

 streak from the eye to the angle of the mouth ; often one or two 

 small light spots on the parietal suture behind the frontal ; lower 

 parts white, usually largely spotted with black. 



