OPHIDIA— COLUBR1DAB— EUTAENIA VAGRANS VAGRANS. 551 



U E. ordinata, B. and G., Catalogue. — Resembles E. sirtalis, the spotted 

 variety ; may be distinguished by the 3 regular series of tesselated, black 

 spots on each side, their prominence, and their number about 85, not 70 ; 

 olive, with 3 distinct rows of dark square spots, one on each side ; lateral 

 stripe wanting ; dorsal very indistinct. 



" 3. Dorsal rows 17. 



"E. atrata, Kennicott, part ii, vol. xii, P. R. R. Rep. — Body moderately 

 stout; head small and narrow; eye very small; a very broad, deep, lemon-yel- 

 low, dorsal stripe covering nearly 3 rows, and distinct from head to tip of tail ; 

 the rest of the upper parts entirely deep, the black without a trace of the 

 lateral stripe, or of light spots ; abdomen uniform greenish slate ; yellowish 

 green under the head. 



U E. coojaeri, Kennicott, loc. cit— Body stout, as in E. radix; head 

 short, depressed anteriorly ; above uniform blackish brown, without, spots 

 or olivaceous brown, with two rows of black spots, as in E. vagrans, but 

 which do not encroach upon the stripes ; dorsal stripes yellowish, distinct 

 on one or two half rows ; lateral stripe usually distinct ; abdomen slate color, 

 sometimes lighter, frequently tinged with red. 



EUTAENIA VAGRANS, Baird & Girard, subspecies VAGRANS, Baird & Girard. 



Uutwnia vagrans, Baird & Girard, Cat. N. A. Serp., 1853, 35.— Girard, Herp. TJ. S. 



Exp. Exped., 1S5S, 154.— Bd., P. R, R. Rep., x, 1859, 19.— Coop. & Suckl., 



Nat. Hist, Wash. Terr., 1860, 297.— Cope, Proc. Acad. Nat. Sci. Pbila., 1866, 



305-307. 

 Eutaenia vagrans subspecies vagrans, Baird & Girard, Cope, Check-List N. A. 



Batrach. & Rept,, 1S75, 41. 

 IIab. — Central Pacific aud northern parts of Souoran Regions. 



The most abundant species inhabiting the Western States and Terri- 

 tories; exhibiting, also, great diversity of coloration. The differences in 

 some of the specimens captured, such as variation in number of side spots, 

 head shields, &c, might almost entitle them to be classed as subspecies. 



The specimen in the list marked E has on the right side three postor- 

 bitals, on the left four. 



