234 VERTEBRATE ANIMALS OF THE UNITED STATES 



130 mm.; width 115 mm.; height 70 mm.: eastern and southern States; 

 terrestrial; common. 



Subspecies of T. Carolina 



T. c. Carolina (L.). Eastern States; southward to Georgia; west- 

 ward to Tennessee and western IlHnois; northward to central Michigan 

 and Maine. 



T. c. triiinguis (Agassiz). Hind foot with but 3 claws; yellow 

 markings usually obscure: Gulf slope; westward into Texas; north- 

 w^ard into Missouri. 



Fig. 134. — Malaclemys centrala {from Fowler). 



T. major (Agassiz). Similar to T. Carolina; size large; carapace 

 180 mm. long, and with yellow radiating lines: Gulf States from Florida 

 to Texas. 



T. ornata (Agassiz). Similar to T. Carolina, but without a keel; 

 fore legs usually red: Indiana to the Rocky Mountains; southward 

 to the gulf of Mexico and Arizona; often common. 



4. Malaclemys Gray. Salt marsh turtles. Carapace depressed 

 and wdth a keel; plastron without a hinge and immovably joined 

 with the carapace; feet large and webbed; head covered with a soft 

 skin: 2 species. 



Key to the Species of Malaclemys 



a 1 On the Atlantic slope M. centrala. 



a 2 On the Gulf slope M. pileata. 



M. centrala (Latreille). Diamond-back terrapin (Fig. 134). Shell 

 rough, each plate having concentric lines of growth; carapace dark 

 olive or grayish in color and 180 mm. long and 130 mm. wide; weight 



