CLASS REPTILIA. 



Concentric Terrapin. Emys Concentrica, Schw. Schoeff. 

 t. 15. Test. Palustris, Gmel. T. Centrata, Bosc. 



Shell oval, side edges recurved ; shield, brown ringed ; head 

 and limbs ash, black speckled. North America. Var. polita 

 shell, black polished. 



Reticulated Terrapin. Emys Reticulata, Gray. Test. 



Reticulata, Latr. Daud. t. 22, f. 3. 

 Shell oblong, olive, pale netted ; beneath yellow, with four 

 round black spots on side of the margin, and one at each end 

 of the sternocostal suture. North America. 



Banded Terrapin. Emys Vitfata, Gray, Syn. Rept. 

 Shell oblong, olive ; behind doubly toothed, varied with 

 unequal yellow lines ; beneath yellowish, with squarish eyed 

 spots on the sutures of the marginal plates, and roundish 

 ones on the end of the symphysis; head and feet yellow 

 lined. North America ? 



Furrowed Terrapin. Emys Decussata, Gray. 

 Shell oblong, pale brown, shields rugulose ; beneath yel- 

 lowish, with subocellated spots, on the sutures of the margi- 

 nal plates ; animal greenish. North America. 



Lettered Terrapin. Emys Scripta, Gray. Test. Serrata, 



Daud. t. 21. f. 1. Schoeff. t. 3. f. 5. Jun. 

 Shell oblong, longitudinally rugose, brown, sides yellow 

 banded ; beneath yellow, with a series of roundish spots on 

 the middle of each marginal plate, or two on the gular plates, 

 and four on each sternocostal symphysis. North America. 



Serrated Terrapin. Emys S errata, Gray. 



Shell oblong, longitudinally rugulose, irregularly cross- 

 banded ; beneath yellowish, with a series of subocellated 

 spots on the sutures of the marginal plates, and dark-edged 

 pale lines on the symphysis. North America. 



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