"1 24 TESTtir)INID,55. 



neck yellowish, lincolatcd with black. Upper surface of limbs yel- 

 lowish (red ?) dotted with black. 



Length of shell 20 centim. 



Northern Brazil, Guianas, Venezuela ; Mexico? 



a. YfT., spir. British Guiana. 



b, c. Yjr-. spir. Dutch Guiana ? 

 (1, e,f, (J, h. $ & Dutch Guiana. 



yg., slieletous. 



i, k, I. ITgr., shells. Dutch Guiana. 



in. 2 ) ^^^^^- Dutch Guiana. (Type of R. ventricosa.) 



M-o. Yg., sp. Dutch Guiana. (Tj\)es of li. lunnta.) 



p. Yg-j^stfTd. Trinidad. Zoological Society. 



q. 2 , shell. Trinidad. Zoological Society, 



r. c?,stffd. Venezuela. Governor Kawson [P.]. 



8. 2 ) sttfd. S. America. (Type of G. callocejjfiala.) 



t, u. Hgr. & vg., S. America. 



stffd. 



V, w. Yg., spir. S. America. 



Var. melanosternum. 



Emys dorsalis {non Spia^, Gray, Cat. Sh. Sept. i. p. 32, pi. xiv. A 



(1855). 

 Geoclemys nielanosterna, Gray, Proc. Zool. Soc. 18G1, p. 205. _ 

 Dhinoclemmys melanosterua,r/ra?y, -^mw. SfMag. N. H. (3) xii. 1863, 



p. 183. and Snppl. Cat. Sh. Ript. i. p. 31 (1870), and Proc. Zool. 



Soc. 1870, p. 722, fig. 

 Clemmys nielanosterna, Strauch, Verth. Schildkr. p. 82 (1805). 



Head dark brown above, with a broad light band along each side 

 from the snout to the neck, bordering the orbit above ; two other 

 light bands on each side, passing through the eye. Tipper side of 

 neck brown ; fore limbs and lower surface of hind limbs, sides, and 

 lower surface of neck orange (red ?), with large black spots or 

 marblings. 



Colombia. 



a. $, stftU. Pdver Buonaventura. J.O. Goodridge,Esq. [C.]. 1 



b. Hgr., Chirambira, Gulf of \ (Types.) 

 stftH. Darien. 1 



Var. areolata. 



Emys areolata, A. Dum. Cat. Mcth. Pept p. 10 (1851), and Arch. 



Mus. vi. p. 223, pi. xiv. (1852); Bocourt, Miss. Sc. Mex., Pept. 



p. 13 (1870) ; Gi'mth. Piol. C.-Am., Pept. p. 8, pi. viii. fig. B (1885). 

 Clemmys areolata, Strauch, Chelon. Stud. p. 33 (1802), and Verth. 



Schildkr. p. 91 (18G5). 

 Chelopus areolatu3, Cope, Proc. Ac. Philad. 1865, p. 180, and 1866, 



p. 123. 



Head brown above ; an oblique light band from the frontal region 

 to above the ear, continued along the neck ; a second pair of light 

 bands along the neck, originating on the occiput ; sides of head, fore 



