BRANSON : SNAKES OF KANSAS. 



371 



seem sufficient to warrant placing these specimens in a separate 

 subspecies. In a number of specimens from Douglas county 

 in Kansas University museum all gradations in marking be- 

 tween E. sirtalis sirtalis and E. sirlalis semifa.sciata are present ; 

 so I list all of these specimens as E. sirtalis semifasciata. The 

 calling of this variety a subspecies is another example of Cope's 

 readiness to base subspecies on slight, variable and unimportant 

 color markings. 



E. sirtalis sirtalis occurs in all parts of Kansas, but is not as 

 numerous as E. sirtalis parietalis. I have examined specimens 

 from Douglas, Lyon, Mitchell, Wallace and Shawnee counties. 

 One specimen from Woodson county is in the National Museum. 



TROPIDOCLONIUM Cope. 

 Tropidoclonium Cope, Proc. Acad. Xat. Sci. Phila., 18G0, p. 76. 



Dorsal scales in nineteen rows ; all keeled excepting first and 

 second rows. Cephalic scuta normal. Two internasals. One 

 loreal. Urosteges in two series. One nasal. Rostral low. 

 Teeth equal. Head not distinct from body. 



Tropidoclonium lineatum Cope. 



Lined Snake. 

 Microps lineatus Hallowell, Proc. Acad. Nat. Sci. Phila., 1856, p. 24. 

 Tropidoclonium lineatum Cope, Proc. Acad. Nat. Sci. Phila., 1860, p. 76. 

 Ischnognathus lineatus Boulenger, Cat. Snakes Brit. Mus., I, 1892, p. 289. 



Fig. 7. 

 Tropidoclonium lioeatum Hal. 



Dorsal scales in nineteen rows, all keeled excepting the first 

 and second rows; first row as broad as long. Frontal small 

 and regular in shape ; longer sides parallel ; anterior border 



