AMPHIBIA. REPTILES. a.Rana. 
647 
Shell oval, gibbous ; fcutels of the didc yellow In the mid- 
dle, edged with Ihining black j furrowed, the lateral 
ones many lided. 
Inhabits South America. 
H<ad rcfembling that of a ferpent, above with yellow, beneath 
with red fpots ; jaws channelled, containing minute teeth ; 
round, broad; eyer black, languid, moift ; necA when 
'extended, 4 inches long, covered with a dullty, wrinkled, 
fcaly fkin ; thighs thick, curved, fpotted with red ; fore-feet 
S-clawed, hind 4 ; plate 10 inches long, 6f broad, 5 high ; 
fcutels of the back 13, the firft of the middle fcries penta- 
gonal, 2 4 hexagonal, 5 trapeziform ; margin black, uriate ; 
chef yellow ; tail thick, conic, about an inch long. 
Shell fmooth, oval ; neck very long. 
Inhabits New Holland. , • •n 
Body above deep olive-brown, beneath pale wluufn-yellow, 
the Ihell deeper yellow, and ftained at all the junftures with 
black -brown, fo as to form fo many crolTings of that colour; 
Jhell nearly fmooth, but in fome parts relembling the gram of 
common black leather; head Imooth ; extremely long, 
its upper furface marked with oval granulations, giving it a 
ferpentine appearance ; forefeet fliort, tetradaftylous, Ibftly 
fcaled, and Ibmewhat pinnate by a continuation of the Ikin , 
hind-feet longer, more widely pinnate, tetradaftylous ; claws 
relembling thofe of birds ; tail fhort, being a mere elonga- 
tion of the Ikin. 
2. RANA. Body 4-footed, naked ; tail ge- 
nerally o : longer than the 
fore. 
This genus differs from the lacerta in having a ftiarter body, 
broader, thicker head, and in general no tail. They feed on 
infeas, are full grown the fourth year, and feldom live be- 
yond the twelfth ; fore-feet mollly cleft, 4-toed, hind-feet 
palmate, g-toed, all without claws ; are very falacious, 
ing to the female for days and weeks; the tadpole is excluded 
from the egg without feet, but with a tail relembling a nin s, 
wWich drops off as the legs are protruded; in this ftate t ey 
have likewife a fort of gills and fubfidlary lungs, and ^ 
Jmall tube on the lower lip, by which they can ^ t em- 
felves to other bodies, or near the left eye a veficle from 
which 
