230 CYSTIGNATHID A. 
IV. No lumbar gland; no tarsal tubercle. 
A. Skin of the back with large flat warts. ‘ 
Interorbital space as broad as the upper 
eyelid; toes united at the base by a 
ge LibereGlrc. wu Gel. ainle ities Seeing 11. marmorata, p. 235. 
Interorbital space as broad as the upper 
eyelid ; no trace of membrane between 
SRUANELIOR aoe te co's iy righ eS che eR ho ae ene 12. verrucosa, p. 236. 
Interorbital space very narrow........ 13. sagittifera, p. 236. 
B. Two glandular lines forming an 
X-shaped figure on the back...... 14. falcipes, p. 236. 
C. Skin smooth, or with a few very small granules on the back. 
iebubeslenders iy. (o.2/2)2ar- oe shakes eae pe 15. nitida, p. 237. 
aibib SUOWE Yo d< iS at eects eee 16. mexicana, p. 237. 
1. Paludicola bufonia. 
Leiuperus salarius, Giinth. Cat. p. 22. 
Pleurodema bufonium, Giinth. lc. p. 31. 
Pleurodema bufonium, Bell, Zool. Beagle, Rept. p. 89, pl. 17. £. 5 
Leiuperus salarius, Bell, lic p. od, pl. 18. f. 1. 
Lower surface of foot. 
Tongue subcireular, indistinctly nicked behind. Vomerine teeth 
in two small oblique groups between the choane. Snout rounded, 
as long as the orbital diameter ; nostril equally distant from the eye 
and the tip of the snout; interorbital space as broad as the upper 
eyelid; tympanum indistinct. Fingers short, depressed, first ex- 
tending slightly beyond second ; toes short, nearly half webbed, the 
membrane extending as a fringe to their tips ; subarticular tubercles 
small; two strong, oval, compressed, metatarsal tubercles. The hind 
limb being carried forwards along the body, the tibio-tarsal articula- 
tion reaches the tympanum. Skin with very small warts above; a 
very large lumbar gland, at least as long as the head, depressed, 
elliptical ; another subcircular gland on the shoulder. Olive above, 
with small darker spots ; lumbar glands of the colour of the back, 
with large irregular brown spots ; “limba cross-barred ; sometimes a 
light vertebral stripe. 
“Patagonia. 
a,b. ¢. Port Desire. C. Darwin, Esq. [P.]. (Types.) 
Ce. Port Desire. C. Darwin, Esq. [P.]. (Type of 
Leiupert us salarius.) 
