119 



EMYS CONCINNA.— Lecon/e. 



Flate XIX. 



Characters. Shell oval, smooth, ecarinate, emarginate behind, dusky brown, 

 varied with yellow lines, more or less sub-reticulate. 



Synontmes. Testudo concinna, Leconte, Ann. Lye. Nat. Hist. N. Y., vol. iii. p. 106. 

 Emys concinna, Dumeril et Bibron, Hist. Nat. des Rept, torn. ii. p. 289. 



Description. The shell is oval, entire in front, and emarginate behind, 

 smooth and ecarinate. The first vertebral plate is hexagonal; the second and 

 third are also hexagonal, with their lateral angles projecting; the fourth is 

 hexagonal and less oblong than the others; the fifth is heptagonal, and broadest 

 behind. Of the lateral plates, the first, second and third are pentagonal, and the 

 fourth quadrangular. There are twenty-five marginal plates, the nuchal, or inter- 

 mediate, is small and oblong; the first is somewhat pentagonal, and projects a 

 little beyond the second: all the rest are more or less square or oblong; the ninth, 

 tenth and eleventh each projecting its posterior face beyond the succeeding plate. 

 The sternum is entire in front and emarginate behind; the brachial plates are 

 triangular, with their apices truncate; the rest are more or less oblong or square; 

 the jaws are firm, thin and cutting, with their edges sharp; the upper very slightly 

 emarginate in front; the lower is furnished with an indistinct hook. 



The anterior extremities are covered with scales above, and with scales and 

 warts below. The fingers are five in number, pahiiate, and each armed with a 

 nail. The posterior extremities are well developed, and covered with scales and 

 granulations above and below. The tarsus is flattened, and sustains five fully 



