40. THAMNOPHIS 



ifg no IS3, 'sy 'Si /s8 /£o /Si, /s^ /ee /6f /^ /ta //^ its i7S 



Fig. .. 



represented by a broken line. 

 the lower half the counts in fema 

 of specimens of each sex having 

 fact that in T. s. injcrnalis thcs 



Figure I 

 chart shows the number of gast! 

 represented by a continuous lint 



teges in specimens of Thamnophis 

 and Thamnophis sirtatis injernalis, 

 le upper half of the chart shows the counts in males, 

 s. The chart shows the percentage of the total number 

 ach number of gastrosteges. and brings out clearly the 

 scutes arc more numerous than in T 



T. sirtalis concinnus may be readily distinguished from 

 T. ordinoides ordinoides of the same regions, by its larger 

 eye, and more numerous scales 



Habits. — This snake probably does not differ in habits 

 from its close relatives. 



