3'58 



KANSAS UNIVERSITY SCIENCE BULLETIN. 



seventh largest. Pregenials very large. Postgenial very small. 

 Gastrosteges 220-240. Urosteges in two series, 45-60. Anal 

 entire. 



Fig. 1. 

 Pityophis catenifer sayi Scblegel. 



Color above, yellowish to reddish brown. Three series of 

 dorsal spots, reddish brown to black. Forty to seventy on 

 body ; median spots largest, elongated anteriorly. Anterior 

 spots in second series frequently coalescing, forming a dark 

 stripe. Two or three more or less well-defined lateral series 

 of lighter spots. These frequently form black stripes ante- 

 riorly. Narrow white stripes between the anterior dark stripes. 

 A series of black spots on the margin of the gastrosteges, in- 

 volving a part of the first row of scales. Belly whitish ; large 

 black blotches down the middle. Throat and chin white, with 

 small black spots. First eight or nine inferior labials margined 

 with black. Top of head whitish or yellowish, with brown or 

 black spots or cross-bars. Only one complete cross-bar present. 

 It crosses the anterior part of the frontal. A dark stripe from 

 orbit to angle of mouth generally present. 



Body large and strong. Neck slightly constricted. Head 

 pointed. Tail short and slender. Eye large. 



