CROCODILIANS, LIZARDS, AND SNAKES. 1001 



augle of the former plate alouj; the occipital suture, represents a conflu- 

 ent pair of occipital spots; nnchal blotches same color as head. 



This species was described from a specimen from Seiior E. Moutes 

 de Oca, from Jalapa, Mexico. Boulenger reports it' from Oaxaca and 

 Jalisco. 



Eutania scalar i^ Cope. 



EUTiENIA PHENAX Cope. 



Eiitania phenax CopK, Proc. Acad. Nat. Sci. Phila., 1868, p. 134. 



Tropidonotm ordinatus var. phenux Boulengkk, Cat. Suakes Brit. Mas., I, 1893, 



p. 210. 

 Euionia c\irtops\s var. phenax Bocoukt, Miss. Soi. Mex., 1S93, p. 778. 



This is a handsome and peculiar species, being- the only one of the 

 genus which is cross-banded. 



Scales in nineteen rows; all keeled excei)t the first. General form 

 much as in E. sirtaUs. Head rather short, muzzle obtuse, eye large, 

 superciliary plates arched. Diameter of eye equal from same to rostral 

 plate along the labials. Frontal shortened behind, with straight sides, 

 equal to .75 of parietal common suture. Parietals truncate behind. 

 Upper labials, eight ; fourth and fifth in orbit. Loreal longer than high, 

 one preocular, temporals 1-2. Inferior labials nine, sixth largest; 

 geneials equal. Gastrosteges, one hundred and sixty-one; anal, one; 

 urosteges, sixty-three. 



Measurements. — Total length, 23 inches 5 lines; tail, 5 inches; to 

 rictus oris, 6 lines. 



Above, reddish olive, crossed by thirty-six transverse spots, which are 

 of a bright brownish-red with a narrow black margin. They are sepa- 

 rated by transverse intervals of only a scale in width, lience the black 

 margins appear as i^aired crossbars. These crossbars extend to the 

 first row of scales and are as often continuous on the side as not. There 

 is no lateral stripe, but there are black spots on the corners of the ends 

 of the gastrosteges. The margin of the first brown spot is in form of 

 two black lines diverging from the parietal plates backward. There is 

 a brown bar in front of the frontal, one on the frontal, and sni)erciliaries 

 behind (imperfect), and a longitudinal on each parietal. Xo pair of 

 light parietal s]»ots. Labials below eye with the last black margined, 

 otherwise light olive. Below, a strong green, unspotted. Sometimes 

 the brown spots are interrupted on the middle line, in the position of 

 the dorsal stripe seen in so many species of EuffViiia, but this is very 

 exceptional, and the ground color shows no trace of stripes. 



The E. phenax is one of the smaller species and is, so far as now known, 

 confined to eastern Mexico. 



Cat. Snakes lirit. Mus., I, 1893, p. 201. 



