REPTILES. 
39 
Pleurodema bufoninum. MiM. 
Plate XVII. — Fig. 5. 
Dentibus palatinis prominentibus, in fascictilis binis ovalibus, obliquis, dispositis ; 
lingua subcordifornii, subemarginata ; glandidis lumbormn maximis, ellipticis, 
planis ; digitis posticis dimidio ferh pahnatis, marginatis; dorso glandulis parvis 
instructo, fiisco-griseo maculis, nigris, lined longitudinali pallida. 
Habitat, Port Desire, Patagonia. 
Description. — Head short. Muzzle rounded. Eyes prominent. Tongue thick, slightly heart- 
shaped, scarcely notched on the posterior margin. Palatine teeth prominent, in two oval 
groups, converging backwards. Tympanum rather small, perfectly round, conspicuous. Pa- 
rotid glands distinct. Body thick and broad, with small glandular tubercles dispersed over 
the surface, particularly at the anterior part. Lumbar glands extremely large, elliptic-ovate, 
flat. Legs of moderate length, rather robust. Anterior toes separated, excepting at the base ; 
a small tubercle under each joint, and several very small ones on the palm ; hinder toes united 
to about half their length, and bordered on each side to the extremity ; metatarsal tubercles 
prominent ; soles of the hinder feet with many minute tubercles. 
Colour. — The upper surface of this species is of a brownish grey colour, sometimes greenish 
brown or dark olive, and with numerous irregular spots of dark-brown or black. Thighs and 
legs with fasciag of the same colour. Beneath yellowish white ; in some with numerous blackish 
dots under the throat. 
DIMENSIONS. 
In. Lin. 
Length of the head and body 1 8 
of the anterior extremities 1 0 
of the posterior extremities 2 3 
Found by Mr. Darwin at Port Desire, in Patagonia, and high up the river 
Santa Cruz — “ probably,” says Mr. Darwin, “ the most southern limit for this 
family.” 
Genus— LEIU PERUS. Bibr. 
Leiuperus salarius. Mihi. 
Plate XVIII.— Fig. 1. 
Supra nigricans, liimbis maculis 3 vcl 4 nigris, albo-marginatis. 
Description. — The head is short, the opening of the mouth small, the tongue rather thick, very 
slightly emarginate behind, and with the posterior margin free. The eyes small ; the tym- 
