190 



973. The shell of the Concentric Terrapene (Emys concentrica} : a variety, having the 



concentric zones double. 



Fig. Shaw, Zool. iii. pi. 9, from this specimen; Schaepff, Test. tab. 15. 

 Hab. North America : also the island of Jamaica. 



Mas. Leverianum. 



974. The shell of a Concentric Terrapene (Emys concentrica). Mus. Leverianum. 



975. The shell of a Concentric Terrapene (Emys concentrica) : the variety with the 



concentric lines strongly marked. Mm. Leverianum. 



976. The shell of a Concentric Terrapene (Emys concentrica} : the variety with the 



concentric lines strongly marked. Mus. Brit. 



977. The shell of the Serrated Terrapene (Emys serrata, Schweigger). 



Fig. Schsepff, Test. tab. 3. figs. 4 & 5. 

 Hab. South America. 



Mm. Leverianum. 



978. The shell of the Serrated Terrapene (Emys serrata). Mus. Leverianum. 



979. The shell of the Serrated Terrapene (Emys serrata), with the horny scutes re- 



moved. Mus. Brit. 



980. A dried specimen of a young Serrated Terrapene (Emys serrata) ; showing the 



non-extension of the costal plates to the inserted extremities of the ribs. 



Mus. Leverianum. 



981. The shell of the European Terrapene (Emys caspica, Schweigger ; Emys lutaria, 



Merrem). 



Fig. Shaw, Zool. iii. pi. 6. figs. 1, 3. 



Hab. Southern parts of Europe and the borders of the Caspian Sea. 



Mus. Brit. 



982. The shell of the European Terrapene (Emys caspica). Mus. Brit. 



983. The shell of the Furrowed Terrapene (Emys decussata, Bell). Mus. Brit. 



