ORDER OPHIDIA. 



Geometrical Tortoise, Shaw. Test. Geometrica, Lin. 



Shaw. t. 1. f. 1. Jun. T. Lttteola, Daud. 

 Shell globular oblong, black ; shields yellow-rayed ; nuchal 

 plate long ; /3 nuchal plate short. Test. Tentoria, Bell. Z. 

 Jour. t. 26. Cape of Good Hope, Madagascar. 



Greek Tortoise. Test. Grceca, Lin. T. Carolina, Herm. 



T. Geometrica, Brunn. Test. Hermanni, Schn. Edw. 



t. 204. Shaw. t. 1. 

 Shell oblong, globose ; black, yellow-rayed ; nuchal plate, 

 slender ; caudal plate incurved. Var. yS hinder margin ex- 

 panded, Schoepf. t. 9. Inhab. South of Europe, Var. no 

 nuchal plate. Test. Zolhafa, Forsk. 



Areolated Tortoise, Test. Areolata, Thumb. Schoepf. 



t. 23. 



Shell oblong, rather depressed ; shields yellowish, deeply 

 grooved ; areola brown ; sutures deep ; nuchal plate, nar- 

 row. Var. |S greenish ; hinder lobe of sternum mobile. Cape 

 of Good Hope, variable in number of dorsal and marginal 

 plates. 



Marked Tortoise. Test. Signata, Walb. Schoeff. t. 28. 

 T. Cafra ? and T. Juvencella 9 Daud. 



Shell rather depressed ; dorsal shields flattish ; yellowish, 

 black-rayed ; areola blackish ; nuchal shields narrow. 

 Africa ? 

 II. Dorsal shell and sternum both solid ; sternal plates 



eleven, the gular pair produced, united into one. Chersina. 



Gray. 

 Angular Tortoise, T. {Chersina) Angulatai Dumeril. 



Test. Bella, Gray Spec. Zool. t. 3, f. 1. Test. Pusilla, 



Lin. T. miniata, Lacep. 

 Shell oblong, ventricose ; black, shields grooved ; areola 

 yellow ; nuchal plate very narrow. Cape of Good Hope. 



