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KANSAS UNIVERSITY SCIENCE BULLETIN. 



Fig. 30. 

 Zamenis flagellum tlagellum Shaw. 



Scales smooth, in seventeen rows ; first row wider than long. 

 Frontal narrow behind, flaring near the front. Superciliaries 

 broad, pointed in front. Prefrontals narrow behind, wide in 

 front ; the outer posterior angle just meeting the anterior 

 angle of the superciliaries. Internasals small, anterior margin 

 convex. Rostral recurved above and excavated below. Ante- 

 rior nasal large, the upper angle extending nearly to the 

 median dorsal line. Posterior nasal smaller. Nostril mostly 

 in anterior nasal. Loreal small. Superior angle of the upper 

 antorbital reaching the frontal. Lower antorbital very small. 

 Postorbitals two. Upper labials eight, fifth and seventh largest. 

 Lower labials nine, fifth largest. Pre- and postgenials sub- 

 equal. Gastrosteges 180-212. Urosteges 80-110. Anal di- 

 vided. Subcaudals in two series. 



Color above yellowish to dark brown, slightly darker ante- 

 riorly. The young are cross-banded. These bands persist, 

 but become less conspicuous in the adult stage. Chin and 

 throat white, usually a dark spot on each lower labial and 

 genial. Belly yellow posteriorly, brown or spotted anteriorly. 

 Top of head brown. Oculars yellowish. Each superior labial 

 with a dark spot above. 



Eye large. Head distinct from body. Body and tail very 

 long and slender. Reaches an extreme length of six feet. It 

 strikes viciously when disturbed, but is unable to inflict a 

 serious wound on account of the shortness of its teeth. Its 

 disposition is much like that of the Blue Racer. 



