13. LEPTODACTYLUS. 239 
6. Tibio-tarsal articulation not reaching beyond the nostril. 
a. Tympanum at least two thirds the width of the 
eye. 
Buen TOunded “<7. etc aterm 2 1 te 8. pentadactylus, p. 241. 
Snout rather prominent; hind limbs re- 
gularly cross-barred, ..) fo. .cau Hy oe 11. mystacinus, p. 244. 
Snout acuminate, prominent; back with 
doneitucimal folds: ht sec ae otek ores 15. typhonius, p. 246. 
. Tympanum not two thirds the width of the eye. 
OOM TOUTE: fe 5 Ae fc erie s bon Beulah a 9. rubido, p. 243. 
Snout acuminate; tibio-tarsal articulation 
reaching beyond the eye .......... 10. pecilochilus, p. 243. * 
Snout a lttle projecting; tibio-tarsal ar- 
ticulation reaching in front of the eye ; 
no glandular lateral fold .......... 13. perlevis, p. 245. 
Snout prominent; tibio-tarsal articulation 
not reaching beyond the eye........ 14. albilabris, p. 245. 
y. Tympanum not half the width of the eye. 
No glandular lateral fold ............ 12. microtis, p. 244. 
Il. Toes with distinct dermal margins. 
1. No membranaceous fold along the tarsus. 
Back with longitudinal folds.......... 16. ocellatus, p. 247. 
No longitudinal folds on the back...... 17 caliginosus,)p. 247. ° 
2. A membranaceous fold along the inner side of the tarsus. 
Inner metatarsal tubercle spur-like .... 18. podicipinus, p. 248. 
Inner metatarsal tubercle oval........ 19., gaudichaudi, p. 249. 
1. Leptodactylus pustulatus. 
Entomoglossus pustulatus, Peters, Mon. Berl. Ac. 1870, p. 647. 
Tongue heart-shaped. Vomerine teeth in two short series behind 
the choane. Snout rounded; tympanum half the width of the 
eye. fingers and toes moderate, pointed, the latter not fringed ; 
first finger a little longer than second. Skin finely wrinkled above. 
Brown, indistinctly banded longitudinally ; beneath with numerous 
small yellowish-white spots. 
Ceara, N. Brazil. 
2. Leptodactylus rhodonotus. 
Cystignathus rhodonotus, Giinth. Proc. Zool. Soc, 1868, p. 481, 
pl..37..f 1. 
Tongue heart-shaped. Vomerine teeth in two slightly curved 
series behind the choanz. Snout rounded, slightly longer than the 
greatest orbital diameter ; nostril nearer the tip of the snout than 
the eye; interorbital space as broad as the upper eyelid ; tympanum 
two thirds the width of the eye. Fingers moderate, first longer 
