C I S T U D A . — Flemming, Gray, Dumeril. 



Genus Cistuda. — Characters. Shell gibbous, strong; marginal plates twenty- 

 five; sternum oval, covered with twelve plates, bivalve, both valves moveable on 

 the same axis, and joined to each other, and to the shell by ligamento-elastic 

 tissue; anterior extremities with five, posterior with four nails. 



CISTUDA CAROUNX.— Edwards. 



Plate I. 



Characters. Head elongated, narrow; upper jaw with a broad hook in front; 

 shell gibbous, carinate, entire; sternum with an entire margin, oval, bivalve, the 

 two valves joined to each other and to the shell by a ligamento-elastic tissue, and 

 moveable on the same axis. 



Synonymes. Land tortoise from Carolina, Ediv., Glean. Nat. Hist., p. 205. 



Testudo Carolina, Lin., Syst. Nat, ed. x., vol. i. p. 198. 



Testudo Carolina, Lin., Syst. Nat, ed. xii., vol. i. p. 352. 



Dosen schildkrote, Block, Schrift. der Berl. Natilrf., fr. vii. p. 131. 



Checkered tortoise, Penn., Arct. Zool. suppl., p. 79. 



Testudo clausa, Gmel., Syst Nat., Lin., vol. i. p. 1041. 



Testudo Carolina, Gmel., Syst. Nat Lin., vol. i. p. 1042. 



Testudo clausa, Schoepf, Hist Test, p. 32, tab. vii. 

 ' Testudo clausa, Latr., Hist Nat Rept, torn. i. p. 139. 

 Vol. III.— 2 



