CLASS REPTILIA. 



before rounded ; body and head black and yellow spotted ; tail 

 long. South of Europe. These are the only Water Tor- 

 toises known which have concave sternums. 



II. Sternum united to the hack shell by a horny suture ; 

 solid, before and behind lobed ; sternal plates twelve. 

 Emys. 



A. Margin of shell acutely toothed ; sides of sternum rounded. 

 Found in the Old World. 



Spinous Terrapin. Emys Spinosa, Gray^ lUust. Ind. 



Zool. t. 



Shell suborbicular, pale brown ; edge sharply toothed ; areola 

 with a central spine. Penang. 



Dhor Terrapin. Emys Dhor, Gray, Illust. Ind. Zool. t. 



Shell suborbicular, hinder edged, acutely toothed; areola 

 punctate ; brown, black spotted. India. 



Spengler Terrapin. Emys Spengleri. Test. Spengleri, 

 Walb. t. 3. Test. Serrata, Shaw, t. 9. T. Tricarinata, 

 Bory, Atlas, t. 



Shell oblong, pale brown ; tri-keeled ; hinder margin deeply 

 toothed. Africa. 



Thick-necked Terrapin. Emys CrassicoUis, Bell, Gray, 

 Illust. Ind. Zool. t. 



Shell ovate, black, tri-keeled; hinder edge toothed. Su- 

 matra. 



Thuryi Terrapin. Emys Thuryi, Gray, Illust. Ind. 



Zool. t. 



Shell oblong, black, slightly tri-keeled ; hinder edge slightly 

 toothed; head blackish, eyebrow and chin yellow lined- 

 Bengal. 

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