80 TESTUUINID^. 



d. 2 > sl^'el. Jamaica. 



e,f- dj.-'pir. W. Indies. 



ff, h. c7 , stira. W. Indies. 



i. Il-r., sttld. W. Indies. Dr. J. E. Gray [P.]. 



k. Hgr., shell. W. Indies. T. Bell, Esq. [P.]. (Type 



of Emys decussata.) 



I. (^ shell. W. Indies. (Type of Uitii/s vermiculata.) 



m. 6, "hell. W. Indies. 



n. 2 , skol. ? 



o,p,q,r,s,t. S, ?,& ? 



lijirr., siiells. 



M. cT, «l'eU. ? Di-- J- ^- Gray [P.]. 



7. Chrysemys dorbigniyi' 



Emys dorbignyi, Dum. c^ i?ii/-. ii. p. 272 (18.35) ; Gray, Cat. Tort. 



p. 22 (1844); B' OrJ/Kpvi, Voy. Am. Mer., Eejit. p. G, pi. i. 



(1847); Gray, Cat. Sh'liept. i. p. 32 (18.5o). 

 Clemmys dorbignyi, Sti-auch, Chelon. Stud. p. 32 (1862). 



Very closely allied to C. scripta., and resembling the var. elegans 

 in coloration. Diflors in the folio-wing points : — Carapace less dis- 

 tinctly rugose, almost smooth in the adult ; head of adult larger ; 

 the width of the interorbital space equals the horizontal diameter of 

 the orbit, which also equals the width of the mandible at the 

 symphysis. The coloration of the upper surface of the carapace 

 and of tlio soft parts agrees in every respect with that of C. eler/ans, 

 but the underside of the shell is different. A large irregular dark 

 brown or black blotch covers the greater part of the plastron ; bridge 

 blackish, which colour extends as festoons to the lower surface of 

 the marginals. 



Length of shell 21 centim. 



Southern Brazil, Uruguay, Buenos Ayrcs. 



a-b, c. 2 "fc bgr., spir. Rio Grande do Sul. Dr. v. Ihering [C.]. 



d. 2 ) skel. Ilio Grande do Sul. Dr. v. Ihering [C.]. 



e. Ilgr., spir. Dept. of Soriano, Uruguay. A. Havers, Esq. 



[P.]. 



8. Clirysemys ornata. 



Emys ornata, Grai/, Sij)i. licpt. p. 30 (1831) ; Dum. ^- Bibr.n.^. 286 

 (1835) ; Gray, 'ZooL Bccdm/s Voy. p. 93, pi. xxix. fig. 2 (1839), 

 and Cat. Tort. p. 22 (1844), ayul Sk. Bept. i. p. 24 (1855); 

 Bocourt, Miss. Sc. 3Icx., Bept. p. 13, pi. iii. fig. 1 (1870) ; So^verhy 

 ^- Lear, Tort. pi. xliv. (1872) ; Giuith. Biol. C.-Am., Bept. p. 2, 

 pi. i. (1885). 



venusta, Gray, Cat. Sh. Bept. p. 24, pi. xii. a. 



? Emys veutricosa, Gray, I. c. p. 28, pi. xiv. 



? Emys valida, Leconte, Broc. Ac. PJiilad. 1859, p. 7. 



Clemmys ornata, Strauch, Chelon. Stud. p. 32 (1862). 



Callichelys ornata, Gray, Ann. iif Mac;. N. H. (3) xii. p. 181 (1863), 

 and Suppl. Cat. S/i. Bept. i. p. 48 (1870). 



vemista, part.. Gray, II. cc. pp. 181, 49, 



? Pseudemys ventricosa, Gray, Suppl. p. 46. 



