104 SALVADOR A. 



Genus SAIiVADORA, Baird & Girard, 



Gen. Char. Head elliptical, detached from the body by a con- 

 tracted neck. Snout protruding. Cephalic plates normal. Edges 

 of rostral free. Two nasals. One loral. Two, occasionally three 

 anteorbitals and two postorbitals. Temporal shields small, scalelike. 

 Eyes quite large. Two pairs of mental scutellae. Tail slender. 

 Body covered with smooth scales. Postabdominal scutella bifid. 

 Subcaudal all bifid. Color diversified, in longitudinal bands. 



Salvadora, GraJiamlae, B. & G. — A dorsal ochraceous band or 

 vitta, on each side of wbich a black one of the same -width. Flanks yellow- 

 ish green. Abdomen uniform dull yellow. Dorsal scales in 17 rows. 



Head conical, rostral plate very prominent, with edges free, ap- 

 pearing as if fastened on the outside of the snout after all the others 

 had taken their place. Prefrontals proportionally large, forming the 

 upper edge of the nostrils, and widely separated, for the two anterior 

 thirds of their length, by the rostral. Postfrontals but slightly 

 larger than the prefrontals, like the latter, subrouuded, longitudi- 

 nally narrow, transversely elongated, and produced slightly between 

 the postnasal and the loral, on the sides of the head. Vertical sub- 

 pentagonal, much elongated, tapering posteriorly without being 

 pointed. Occipitals elongated, posteriorly truncated, sides rounded. 

 Prenasal larger, subtrapezoidal ; postnasal subquadrangular ; nostril 

 situated at the antero-posterior angle of the postnasal. Loral sub- 

 triaugular, base in an horizontal line with the head ; apex upwards 

 produced between the postfrontal and the upper anteorbital. Upper 

 anteorbital large, angular, produced to the upper surface of the head 

 between the superciliaries and postfrontals. Inferior anteorbitals 

 small and quadrangular, lowest situated on the commissure between 

 the 4th and 5th labials. Postorbitals angular, equal in size. Two 

 pretemporals, shields somewhat larger than rest, which are scarcely 

 larger than the scales. Mouth deeply cleft, undulating. Upper 



