a. 6, stfid. 
b,c. Ad., skulls. 
d, e. Ad., skulls. 
JF. G, stffd. 
g. Ad., shell. 
hk. Ye., stffd. 
a. Yc., " stffd. 
3. PODOCNEMIS. 
Santa Cruz. 
Upper Amazon. 
Kea. 
Lakes of Upper Amazon. 
Lakes of Upper Amazon. 
Lower Amazon. 
Brazil. 
Mr. E. Bartlett [C.]. 
Mr. E. Bartlett | C. ]. 
H. W. Bates, Esq. | C. 
H. W. Bates, sq. [C. 
LC. 
ERP We Bates, Esq. 
2. Podocnemis lewyana. 
Podocnemis lewyana, A. Dum. Arch. Mus. vi. p. 242, pls. xviii. & 
xix, (1852). 
Apparently closely allied to the preceding. 
pressed, without keel. Front iobe of plastron not broader than 
hind lobe. Snout longer; interparietal shield broader than long, 
followed by a small triangular shield. Three large scales on the 
outer side of the foot, upper largest. Shell olive, more or less 
vermiculate or spotted with black. 
Length of shell 26 centim. 
Colombia (Bogota) and Venezuela. 
Carapace more de- 
3. Podocnemis unifilis. 
Podocnemis unifilis, Trosch. in Schomb. Reise Brit. Guian. iii. p. 647 
(1848) ; Selater, Proc. Zool. Soc. 1871, p. 745. 
dumeriliana, part., Gray, Cat. Sh. Rept. i. p. 62 (1855). 
Chelonemys dumeriliana, part., Gray, Suppl. Cat. Sh. Rept. i. p. 83 
(1870), and Ann. § Mag. N. H. (4) viii. p. 68 (1871), and App. 
p- 25 (1872). 
Agrees with P. dumeriliana in the shape of the shell and head 
and the presence of a single interparietal shield; with P. lewyana 
in the presence of three large shields on the outer side of the foot ; 
differs from both in the presence of a single dermal appendage on 
the chin. Carapace brown, uniform or spotted with black, with 
the edge yellowish or reddish; plastron brown and _ yellowish. 
Head dark brown, with yellow spots disposed as follows :—One on 
the snout, one on each side of the nasal region, one from below the 
eye to the mandible, one behind the eye, one above the ear, and a 
pair on the interparietal shield. 
The species reaches a length of 31 centim., according to Schom- 
burgk; the shell of the largest specimen in the Museum measures 
114 centim. 
Guianas and Northern Brazil. 
a. Hgr., spir. 
b. Her., stffd. 
c. Yg., spir. 
d, e. Yg., spir. 
Upper Amazon. 
Upper Amazon. 
Para. 
—? 
Mr. E. Bartlett [C. ]. 
