AMPHIBIANS AND REPTILES. 225 
bridge of plastron deep, and much larger than anterior. Plates 
on carapace all more or less finely and obsoletely striate, sutures 
prominent, and median keel sharp, otherwise smooth. Plastron 
cruciform, much smaller than carapace or its length about 1% 
in latter, and with large lateral processes of abdominal forming 
bridge rather broad. Without bridges form of plastron elon- 
gately-ovoid, and bulge at front of bridges greatest width or 
about half its length. Gular plate small, single. Branchial plates 
small, 2, and much smaller than thoracic. Abdominal largest of 
all plates. Femoral subtriangular, and subcaudal quadrilateral. 
Free edges of plastron notched at sutures, and an emargination 
at posterior edge of subcaudals. Plates of plastron all with more 
or less angulated strie. Head large, depressed both above and 
below, and with swollen appearanc posteriorly so that it is elon- 
gately oval as viewed above, with anterior convergence ending in 
sharp-pointed snout. Eye large, high and anterior. Mouth 
slightly undulated, inclined slightly posteriorly, upper jaw pro- 
jecting well beyond lower, and shutting outside. Upper jaw 
strong and sharp-edged, and lower equally strong and recurved 
in front. Mouth as viewed below 34 long as wide. Head and 
neck distensible for about */; length of carapace, forming fold 
over head when retracted, and wrinkled skin on head and neck 
covered with fleshy tubercles or points. Legs, feet and tail cov- 
ered with soft skin.- Fore limbs with 3 large scales on carpus 
above, and a number of small ones over bases of fingers. A few 
scales over bases of hind toes above. ‘Tail not scaly. Fore limbs 
short, rather robust, and each of 5 fingers with a short curved 
claw. Hind limbs compressed at tarsus, and with 5 toes, of 
which only 4 inner have claws similar to those on fingers. Tail 
robust, pointed, conic, short, thick at base, and ending in a horny 
point. Color in alcohol with carapace dusky-olive, scarcely 
mottled with darker. Plastron soiled brownish. Head dull 
blackish above, and same general ground-color extends below. A 
pale or whitish streak from tip of snout above over eye and back 
towards carapace. Below this a still more pronounced similar- 
colored streak begins on snout below and extends back on neck 
below eye. Still another equally as distinct on side of mandible, 
I5 MU 
