BRANSON : SNAKES OF KANSAS. 409 



square. Preocular one, rectangular ; postoculars two. Upper 

 labials seven, second to fifth higher than long ; third and fourth 

 entering the orbit. Lower labials eight, fifth largest. Pre- 

 and postgenials about equal. Gastrosteges about 150, Uro- 

 steges about 70, in two series. Anal divided. 



Color above uniform sage-green, brighter toward the ab- 

 domen. Top of head bottle-green. Belly greenish white. Up- 

 per labials greenish white below, tops and most of last two 

 green. Under part of head white. 



Occurs throughout the state. I have examined specimens 

 from Neosho, Barber, Montgomery, Pottawatomie, Franklin 

 and Douglas counties. 



ZAMENIS Wagler. 

 Zamenis Wagler, Syst. Amph., 1830, p. 188. 

 Coluber Schlegel, part, Phys. Serp., II, 1837, p. 125. 



Bascanioii Baird aad Girard, Cat. N. Amer. Rept., Pt. I, Serp., 1853, p. 93. 

 MasHcoiohis Baird and Girard, Cat. N. Amer. Rept., Pt. I, Serp., 1853, p. 98. 



Scales smooth, in fifteen to nineteen rows. Teeth increasing 

 gradually behind. Anal plate divided ; subcaudals in two 

 series. Preoculars two, lower very small. Head distinct. 

 Body long and slender. Young spotted or with cross bands. 



KEY TO KANSAS SPECIES. 



1. — Seventeen rows of scales; seven upper labials; black bluish or greenish 



above Z, constrictor. 



2. — Seventeen rows of scales; eight upper labials; brownish above. 



Z. flagellum. 



Zamenis flagellum Shaw. 



Zamenis flagelUformis Boulenger, Cat. Snakes Brit. Mus., I, 1893, p. 389. 



Coluber flagellum Shsiw, Gen. Zool., Ill, Pt. II, p. 475, 1802. 



KEY TO SUBSPECIES. 



I. — Head and shoulders brownish; color becoming lighter toward the tail. 



Young cross-banded. These bands usually persisting in the adults. 



Z. flagellum flagellum. 

 II. — Black, except the belly, which is pinkish or yellow (Cope). Pieeus doea 



not occur in Kansas Z. flagellum piceus. 



Zamenis flagellum flagellum Shaw. 



Coach Whip. 

 Coluber flagelUformis Holbrook, N. Amer. Herp., I, 1836, p. 107. 

 Masticophis flagelUformis &nA Coluber iestaceas Baird and Girard, Cat. 



N. Amer. Rept., Pt. I, Serp., 1853, pp. 98, 150. 

 Bascanion flagelliforme flagelUforme Cope, Check-list N. Amer. Batr. 



Rept. , 1875, p. 10. 



