4. CTCLOEHAMPHUS. — 5. CAITPTOCEPHALTIB. 189 



4. CYCLORHAMPHUS. 



Cyclorhamplius, Tschudi, Batr. p. 81. 

 Cyclorhamphus, sp., Dum. ^ Bibr. viii. p. 452. 

 Pithecopsis, {Bihr.) Gilnth. Cat. p. 22 ; Cope, Nat. Hist. Bev. 1865, 

 p. 112, and Journ. Ac. PhUad. (2) yi. 1866, p. 93. 



Pupil horizontal ? Tongue oval, entire and free behind. Vome- 

 rine teeth. Tympanum hidden. Fingers free ; toes webbed, the 

 tips not dilated. Outer metatarsals separated. Omosternum carti- 

 laginous ; sternum a cartilaginous plate. Terminal phalanges 

 simple. 



Brazil. 



1. Cyclorhamphus fuliginosus. 



Pitheoopsia fuliginosus, Giinth. Cat. p. 22. 

 Oyclorhamphus fuliginosus, {Bibt:) Tschudi, Batr. p. Si ;' Dum. Sr 

 Bibr. p. 464. 



Vomerine teeth in two oblique series behind the choanse. Toes 

 two-thirds webbed ; a single small metatarsal tubercle. Skin quite 

 smooth ; a large, flat, circular gland on each side. Uniform 

 brownish ; beneath finely whitish-spotted. 



Brazil. 



5. CALYPTOCEPHALUS. 



Peltocephalus, Tschudi, Batr. p. 81. 



Calyptocephalus, {Bibr.) Dum.^Bih-. viii. p. 447; Gilnth. Cat.'p. 21 ; 



Cope, Nat. Hist. Rev. 1865, p. 112, and Journ. Ac. Philad. (2) vi. 



1866, p. 93. 



Pupil horizontal. Tongue circular, entire, free behind. Vomerine 

 teeth. Cephalic derm involved in a rugose cranial ossification, the 

 orbit being completely enclosed. Tympanum distinct. Engers 

 free ; toes webbed, the tips not dilated. Outer metatarsals incom- 

 pletely separated. Omosternum cartilaginous; sternum a carti- 

 laginous plate. Terminal phalanges simple. 



Chili; Panama. 



1. Calyptocephalus gayi. 



Calyptocephalus gayi, Giinth. Cat. p. 21. 

 Peltocephalus quoyii, Tschudi, Batr. p. 81. 

 Calyptocephalus gayi, Dum. ^ Bibr. p. 450 ; Guichen. in Gay, Chile, 



ix. p. 109, pi. 6; Steindachn. Nwara, Amph. p, 16; Espada, Viaj. 



Pacif., Vert. p. 2. 



Vomerine teeth in two nearly straight series between the choanoB. 

 Head depressed ; snout very short, rounded ; eyes small, interorbital 

 space much broader than the upper eyelid ; tympanum nearly as 

 large as the eye. First finger shorter than second ; toes nearly 

 entirely webbed ; subarticular tubercles none ; inner inetatarsal 

 tubercle oval, blunt; no outer tubercle. The hind limb being 



