26 



EUTAINIA. 



of abdominal scutellae, and 1st and 2d dorsal series of the same color 

 as the back. On stretching the skin, numerous short white lines are 

 visible. Occipital plates with two small approximated spots on the 

 line of junction. Orbitals whitish. The greenish white of the ab- 

 domen becomes more yellow anteriorly. 



In some specimens from along the Rio Grande the dorsal stripe is 

 ochraceous brown. 



Head more like that of E. saurita than of E. Fcdreiji, while the 

 body is stouter than in either. The subcaudal scales are less nume- 

 rous than in the other two allied species. Resembling E. Faireyi in 

 color, it is always distinguishable by the stouter body, fewer caudal 

 scales, and dissimilarity of color in the longitudinal stripes. 



Red River. 



New Braunfels, Texas. 

 Near Indianola. 



San Pedro, Texas. 

 Sahinal, Neio Mex. 

 3Iedina, New Mex. 



B. Body stouter. Tail shorter. Lateral stripe on tJie 2d and 3d 

 row 0/ scales. 



1. Dorsal rows 19. 



4. Ulutaillia illfernalis, B. & G. — Most slender of all the species 

 of the section. Head and eye large. Above black: a series of about 110 

 triangular reddish yellow spots, confluent with the indistinct lateral stripe, 

 itself confluent with the greenish white sides and abdomen. 



Syn. Coluber infernalis, Blainv. Nouv. Ann. Mus. d'Hist. Nat. Ill, 1834, 

 59. PI. xxvi, fig. 3 & 3a. 



Aspect colubrine, as indicated by Blainville. A vertebral line of 

 yellowish white, composed of one and two half-rows of scales, on 

 each side of which is a blackish stripe, not encroaching upon the 

 light colored stripe along the 2d and od lateral rows of scales. 

 Above the latter the black is interrupted by about 110 subtriangu- 

 lar spots of reddish yellow or reddish white. Abdomen and exterior 

 row of dorsal scales are greenish white, tinged posteriorly with slate. 

 A minute black spot, more or less covered by the incumbent scutellge 



