124 TESTUDINID &. 
neck yellowish, lineolated with black. Upper surface of limbs yel- 
lowish (red ?) dotted with black. 
Length of shell 20 centim. 
Northern Brazil, Guianas, Venezuela; Mexico ? 
a. Yg., spir. British Guiana. 
b,c. Yg., spir. Dutch Guiana ? 
Gi€; Fig, Wes Ques Dutch Guiana. 
yg., skeletons. 
2, k,l. Her., shells. Dutch Guiana. 
m. 9, shell. Dutch Guiana. (Type of 2. ventricosa.) 
n—-0. Y®., Sp. Dutch Guiana. > (Types of R. dunata.) 
p. Ye., stffd. Trinidad. Zoological Society. 
q. Q, shell. Trinidad. Zoological Society. 
r. 6, stftd. Venezuela. Governor Rawson [ P. ]. 
s. 2, stffd. S. America. (Type of G. callocephala.) 
t,u. Her. & yg., S. America. 
stffd. 
vw. Y¢., spir. S. America. 
Var. melanosternum. 
Emys dorsalis (non Spiv), Gray, Cat. Sh. Rept. i. p. 32, pl. xiv. A 
(1855). 
Geoclemys melanosterna, Gray, Proc. Zool. Soe. 1861, p. 205. 
Rhinoclemmys melanosterna, Gray, Ann. § Mag. N. H. (3) xii. 1863, 
p- 183, and Suppl. Cat. Sh. Rept. i. p. 81 (1870), and Proc, Zool. 
Soc. 1870, p. 722, fig. 
Clemmys melanosterna, Strauch, Verth. Schildkr. p. 82 (1865). 
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. Upper 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. 2, stfid. River Buonaventura. J.O. Goodridge, Esq. [C.]. 
b. Her., Chirambira, Gulf of (‘Types.) 
stfid. Darien. 
Var. areolata. 
Emys areolata, 4. Dum. Cat. Méth. Rept. p. 10 (1851), and Arch. 
Mus. vi. p. 228, pl. xiv. (1852); Bocourt, Miss. Se. Mex., Rept. 
p- 18 (1870) ; Giinth. Biol. C.-Am., Rept. p. 8, pl. viii. fig. B (1885). 
Clemmys areolata, Strauch, Chelon. Stud. p. 33 (1862), and Verth. 
Schildkr. p. 91 (1865). 
Chelopus areolatus, Cope, Proc. Ac, Philad, 1865, p. 186, and 1866, 
p. 128. 
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 
