181. BRyTHEOI.A.MPBTJS. 205 



upper surface of the head ; rostral and upper labials brown above 

 and grey beneath, the two colours separated by a white line ; lower 

 parts uniform yellowish white. 



Total length 360 millim. 



Michoacan, Mexico. 



4. Erjrthrolampms lateritius. 



Coniophanes lateritius, Cope, Proc. Ac. Philad. 1861, p. 524. 

 Tachymenis melanocephala, Peters, Mon. Perl. Ac. 1869, p. 876. 

 lateritia, Garm. N. Am. Pept. p. 61 (1883_) ; Giinth. Biol C- 



Am.,Rept.^. 162 (1895). 

 Erythrolamprus melanocephalus. Cope, Bull. U.S. Nat. Mus. no. 32, 



1887, p. 78. 

 lateritiua. Cope, I. c. 



Snout acute and prominent, head broad behind. Prontal shield 

 nearly as broad as long ; loreal square ; one prae- and two post- 

 oculars; seven upper labials, third and fourth entering the eye. 

 Scales in 19 rows. Bright vermilion above, punctulated with 

 brown, passing through orange to golden on the belly ; head and 

 nape black, the labials bordered and traversed by yellow lines, 

 and the pariefcals dotted with the same ; throat and chin yeUow, 

 black-spotted. 



Guadalajara, Mexico. 



5. Erythrolamprus dromiciformis. 



Tachymenis' dromiciformis, Peters, Mon. Berl. Ac. 1863, p. 273. 

 Coniophanes dromiciformis, Cope, Proc. Ac. Philad, 1866, p. 128, 



and 1868, p. 104. 

 Erythrolamprus dromiciformis, Cope, Proc. U.S. Nat. Mus. siv. 



1892, p. 676. 

 Coniophanes signatus, Garm. Bull. Essex Inst. xxiv. 1892, p. 91. 



Snout moderate, rather strongly depressed, rounded. Eostral 

 broader than deep, just visible from above ; internasals shorter than 

 the prsefrontals ; frontal once and a half to once and two thirds as 

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

 shorter than the parietals ; loreal deeper than long ; one prseocular 

 (sometimes divided) ; two postoculars ; temporals 1 + 2 ; eight or 

 nine upper labials, fourth and fifth entering the eye ; four lower 

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

 as or shorter than the posterior. Scales in 19 rows. Ventrals 

 123-128 ; anal divided ; subcaudals 71-80. Yellowish above, 

 speckled with brown and with a brown vertebral stripe, five scales 

 wide, and a dark brown lateral streak extending to the head and 

 passing through the eye; lips speckled with brown; yellowish 

 beneath, outer ends of ventrals dark brown or with a dark brown 

 dot. 



Total length 335 millim. ; tail 105. 



Western Ecuador. 



a-b. (V. 126, 128 ; C. 71, ?). Guayaquil. 



