30 ELISHA MITCHELL SCIENTIFIC JOURNAL 



numerous distinct yellow spots arranged in radiating- lines; a 

 fourth has a little black only, with faint indications of yellow 

 spots; a fifth is practically unmarked. All these five have 

 the plastron light brown unmarked and three claws on the 

 hind feet; the edge of the hind foot beyond the third claw is 

 straight in all five withont a notch showing the termination 

 of the fourth digit. Feet unwebbed in all five. One of the 

 five has only traces of a keel. 



These were examined with regard to the quadratojugal. In 

 one of these it was absent; in the other two, small and trian- 

 gular. 



Terrapenc triungis (?) from Georgia. These are a very 

 variable lot and I am doubtful whether they are the same 

 species as those from Colmesneil, Texas. These Georgia 

 specimens appear to me to be probablv a three-clawed form of 

 T. Carolina but present some differences. 



In twenty living specimens examined in May and June, 

 1903, five had the hind feet four-clawed and fifteen had them 

 three-clawed. Nearly all the latter had a notch on the hind 

 foot showing the termination of the fourth digit. This notch 

 was absent in one specimen and only slightly indicated in 

 several others. The markings on plastron and carapace are 

 quite variable. The former is usually more or less variegated, 

 the markings frequently assuming the regular pattern which 

 is characteristic of T. Carolina. Often, however, they are 

 irregular and the plastron is frequently all yellow, but in one 

 specimen only have I seen it all dark. 



The carapace is dark brown usually marked with roundish 

 yellow spots which var3 T greatly in size, but are never as 

 small or numerous as in the Colmesneil specimens. These 

 spots sometimes largely coalesce forming irregular yellow 

 markings which may occupy the greater port of the shell to 

 the exclusion of the ground color. 



The head is usually marked with large round yellow spots, 

 sometimes, hewever, these are small or mainly absent and 

 sometimes the head markings are similar to those of T. bann. 



