156 ENQTSTOMATID^. 



3. BRACHYCEPHALUS. 



Brachycephalus, Fitdng. N. Clcfss. Rept. p. 39 ; Wagl. Syst. Amph. 



p. 207 ; Tschudi, Batr. p. 87 ; Dum. ^ Bihr. viii. p. 726 ; Giinth. 



Cat. p. 46; Cope, Journ. Ac. Philad. (2) vi. 1867, p. 197. 

 Ephippifer, Coeteau, Mag. Zool. Cht6rin, lij. 1836. 



Pupil horizontal. Tongue elliptical, entire and free behind. 

 Palate smooth. No tympanum. Pingers and toes free. Outer 

 metatarsals united. A broad dorsal bony shield, confluent with the 

 processes of the second to seventh vertebrae. Coraooids and pre- 

 coraooids slightly divereent ; no omosternum ; sternum cartila- 

 ginous. Diapophyses ot sacral vertebra feebly dilated. Terminal 

 phalanges simple. 



South America. 



1. Brachycephalus ephippium. 



Brachycephalus ephippium, Giinth. Cat. p. 46. 

 Bufo ephippium, Spix, Spec. Nov. Test. Ran. p. 48, t. 20. f. 2. 

 Brachycephalus ephippium, Fitz. I. c. ; Tschudi, I, e. ; Dum. Sf £ibr. 



p. 729 ; Steindachn. Novara, Amph. p. 85. 

 Ephippifer spijdi, Coct. I. c. 



aurantiacus, Coct. I. c. 



Brachycephalus aurantiacus, Oirard, U.S. Expl. Exped., Herp. 



p. 100, pi. 5. f. 20-24. 



Head moderate, flat, bony ; snout short ; interorbital space much 

 broader than the upper eyelid. Pingers short, inner very short, 

 rudimentary, outer concealed under the skin ; toes short, the inner 

 and the outer indistinct ; no subarticular nor metatarsal tubercles. . 

 The hind limb being carried forwards along the body, the tarso- 

 metatarsal articulation reaches the eye, or slightly beyond. Skin 

 smooth ; dorsal shield rough. Yellowish, bony parts darker. 



Guianas ; Brazil. 



a. Many spec. Brazil. Dr. Gardiner [P.]. 



b-d. Adult. Tropical America. 0. Darwin, Esq. [P.]. 



4. MELANOBATRACHUS. 



Melanobatrachus, Beddome, Proc. Zool. Soc. 1878, p. 722. 



PupU erect. Tongue elliptic, entire and free behind. Palate 

 smooth. No tympanic disk. Pingers free ; toes webbed, the tips 

 not dilated. Outer metatarsals united. Coracoids and precoraooids 

 nearly parallel, abutting, latter very weak ; no omosternum ; 

 sternum cartilaginous. Diapophyses of sacral vertebra moderately 

 dilated. Terminal phalanges simple. 



India, 



