21 



CHELONURA .—Fleming. 



Genus Chelonura. — Characters. Head large, both jaws strongly hooked; 

 sternum small, cruciform, immovable; tail very long, surmounted with a scaly or 

 tuberculated crest; anterior extremities furnished with five nails, posterior with 

 four. 



CHELONURA SERPENTINA.— Lmn^Bws. 



Plate III. 



Characters. Head large, snout very short, but pointed; shell oblong or 

 subquadrilateral, depressed, more or less tricarinated, entire in front, deeply 

 emarginate behind, with three points on each side of the central notch. 



Synontmes. Testudo serpentina, Linn., Syst. Nat., torn. i. p. 351. 

 ' Testudo serpentina, Lactp., Quad. Ovip., torn. i. p. 131. 

 Testudo serrata, Penn., Arc. Zool. suppL, p. 79. 

 Testudo serpentina, Schoepff, Hist. Test., p. 28, tab. vi. 

 Testudo serpentina, Gmel., ed. Syst. Nat. Lin., torn. i. part iii. p. 1042. 

 Testudo serpentina, Shaw, Gen. Zool., vol. iii. p. 72, pi. xix. 

 Testudo serpentina, Daud., Hist. Nat. des Rept., torn. ii. p. 98, tab. xx. fig. 2. 

 La Tortue serpentine, Bosc, Nouv. Diet. d'Hist. Nat., torn. xxii. p. 261. 

 Chelonura serpentina, Flem., Phil. Zool., vol. ii. p. 268. 

 Emys serpentina, Merrem, Versuch. eines Syst. der Amph., p. 23. 

 Chelonura serpentina, Say, Jour. Acad. Nat. Sc. Philad., vol. iv. p. 206-217. 



