i86 



The Ohio Naturalist. 



[Vol. II, No. 3, 



arrangement of markings is later and the irregular the more 

 primitive. 



This brief study has shown how variable some of the charac- 

 ters really are. Some of these characters are used in classification, 

 and varieties and even species have been proposed which were 

 founded on no more fundamental characters than these. The 



