6. CHEYSEMYS. 



69 



G. CHRYSEMYS. 



Eravs, part., Ditm. Zool. Ann/, p. 7C. (1800); Bum. ^- Bihr ii 

 p. 232 (1835) ; Grai,, Cat. Tort. p. 14 (1844), and Cat. Sh. Jirpt'. 

 i. p. 19 (185o). ^ 



Cleiuuiys, part., JVaf/kr, Si/st. Amjih.v,. 136 HSPjO) ; Strauch, Chclon. 



'S?wr/. p. 28(18()2). 

 Terrapeue {mm Men-.), pait., Buiuip. On.^ero. s. sec. Ed. d. Ji. A. 



p. 15:! (18:50). 

 Chrysemys, Grrn/, Cat. Tort. p. 27, and S/i. I^cpf. i. p. 32 ; Aaassiz, 



Contr. N. II. U. S. i. p. 4:J8 (1857). 

 rscudeniys, Gniji. Cat. Sh. Ilcpt. i. p. 3:3, and Suppl. i. p. 45 (1870). 

 I'tycheinys, Af/a>'.siz, I. c. p. 431. 



Tracherays, Ar/assiz, I. c. p. 434; Gray^ Suppl. p. 47. 

 Nectemys, At/axsiz, op. cit. ii. p. 042. 

 Doir(vlielys, Af/asa. L c. p. 441 ; Gray, SiqipJ. p. 30. 

 Calliclielys, Gra)j, Ann. S,- Mag. N. II. (3) xii. p. 181 (1863), and 



Suppl. Cat. iSh. liept. p. 48. 

 Redaiuia, Gray, Si/ppl. p. 35. 



F]>. 21. 



Skull of Chrysemys scripta. (From Gray, P. Z. S. 1869.) 



N'eural plates hexagonal, sbort-sided in front. Plastron exten- 

 sively united to the carapace by suture, with short or moderately 



g2 



