548 ZOOLOGY— BATRACHIANS AND REPTILES. 



and extending over occipital plates and half of frontal; prefrontals trans- 

 verse. — Mexico. 



"*** Dorsal rows 21 ; form stouter. 



u E. radix, B. & G.— Stout and compact ; head medium, superior labials 

 seven ; ground color light olive-green, with 3 longitudinal yellow stripes, 

 and 6 series of distinct black spots ; lateral stripe on third and fourth rows 

 not well defined. 



"E. macrostemma, Kennicott. — Frontal plate longer than occipital 

 suture; temporal small, margining only anterior part of penultimate labial; 

 post-geneials larger than pre-geneials ; superior labials 8 ; loreal higher 

 than long, olivaceous, with one row of small, black spots below, and two 

 rows above the lateral stripe. Two small, black, nuchal spots and a short 

 post-oral pale crescent. 



"B. — Body stouter; tail shorter; lateral stripe on second and third row of scales. 



" 1 Dorsal rows 21. 



"E. vagrans, B. and G. — Frontal plates shorter than common occipital 

 suture ; temporal small ; superior labials 8 ; post-geneials equal or shorter 

 than pre-geneials. Ashy, sometimes brown, with narrow, unmarginal stripes, 

 and very small lateral spots in two rows. 



"In addition to these species, we have, according to Baird andGirard's 

 catalogue, the following: 



U E. angustirostris, Kennicott, Proc. Acad. Nat. Sci. Phila., I860, 332. — 

 Body rather stout ; tail less than one-fourth total length, and very small ; head 

 more elongated and narrow than any of this genus ; snout long, narrow, and 

 pointed ; crown place above eye large ; dorsal stripe narrow, very indistinct ; 

 an indistinct, dull, whitish, lateral stripe on the second and third rows; 

 above lateral stripes dark olive-brown or black ; abdomen dark ashy-olive 

 or black. 



U E. ordinoides, B. and G., Catalogue. — Body stouter than most species; 

 a dorsal and two lateral stripes ; on each side two series of black spots, 

 about 80 in number ; between the lower series reddish-brown, between the 

 upper olivaceous; extensive row of dorsal scales, the larger carinated; 

 remaining scales nearly equal; caudal carinated. 



