156 ENGYSTOMATID A. 
3. BRACHYCEPHALUS. 
Brachycephalus, Ftzing. N. Class. Rept. p. 59; Wagl. Syst. Amph. 
p- 207; Tschudi, Batr. p.87; Dum. § Bibr, viii. p. 726; Giinth. 
Cat. p. 46; Cope, Journ. Ac. Philad. (2) vi. 1867, p. 197. 
Ephippifer, Cocteau, May. Zool. Guérin, iii, 1835, 
Pupil horizontal. Tongue elliptical, entire and free behind. 
Palate smooth. No tympanum. Fingers and toes free. Outer 
metatarsals united. A broad dorsal bony shield, confluent with the 
processes of the second to seventh vertebra. Coracoids and pre- 
coracoids slightly divergent; no omosternum; sternum cartila- 
ginous. Diapophyses of sacral vertebra feebly dilated. Terminal 
phalanges simple. 
South America. 
1. Brachycephalus ephippium. 
Brachycephalus ephippium, Giiinth. Cat. p. 46. 
Bufo ephippium, Spix, Spec. Nov. Test. Ran. p. 48, t. 20. f. 2. 
Brachycephalus ephippium, F%tz. l.c.; Tschudi, l.c.; Dum. § Bibr. 
p. 729; Stemdachn. Novara, Amph. p. 35. 
Ephippifer spixii, Coct. 1. c. 
aurantiacus, Coct. l. ¢. 
Brachycephalus aurantiacus, Girard, US. Expl. Exped., Herp. 
p. 100, pl. 5. f. 20-24. 
Head moderate, flat, bony ; snout short ; interorbital space much 
broader than the upper eyelid. Fingers 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. C. Darwin, Esq. [P.]. 
+. MELANOBATRACHUS. 
Melanobatrachus, Beddome, Proc. Zool. Soc, 1878, p. 722. 
Pupil erect. Tongue elliptic, entire and free behind. Palate - 
smooth. No tympanic disk. Fingers free ; toes webbed, the tips 
not dilated. Outer metatarsals united. Coracoids and precoracoids 
nearly parallel, abutting, latter very weak; no omosternum; 
sternum cartilaginous. Diapophyses of sacral vertebra moderately 
dilated. Terminal phalanges simple. 
India. 
