10. CERATOPHETS. 221 



being prominent, crest-like ; tj-mpannm distinct, large. First finger 

 longer than second : toes free ; tips of fingers very slightly, of toes 

 more distinctly dilated. The hind limb being carried forwards 

 along the body, the tibio-tarsal articulation reaches in front of the 

 eye. Upper surfaces warty, the warts conical, spine-like on the 

 limbs ; upper eyelid with a horn-like dermal appendage ; a )-(- 

 shaped glandular fold on the nape ; one or two pairs of sUghtly 

 curved folds on the middle of the back ; beneath granular. 

 Ecuador; Colombia. 



a. Yg. Bogotci. 



10. CERATOPHRYS. 



Ceratopkrys, (Boie) Wied, ' Beitr. p. 569; Wagler, Si/st. Amph. 



p. 203; Tschiidi, Batr. p. 81 ; Dum. Sr Bibr. viii. p. 428; Giinth. 



Cat. p. 24; Cope, JVaf. Hist. Rev. I860, p. 112, and Journ. Ac. 



Philad. (2) vi. 1866, p. 93. 

 Phrynoceros, Tschudi, I. c. 

 Stombus, GravenJi. Isi's, 182-5, p. 952 ; Cojye, Journ. Ac. Philad. (2) 



vi. 1866, p. 94. 

 P^'xicephalus, sp., Dinn. ^- Bibr. \\n. p. 442. 

 Trigonophrys, Hall'jro. Proc. Ac. Philad. 1856, p. 298. 

 Pyxicephalus, Giinth. Cat. p. 24. 



Odontophrynus, Reinh. ^- Liitk. Tidensk. Meddel. 1861, p. 159. 

 Tomopterna, Cope, Nat. Hist. Rev. I860, p. 112, and Journ. Ac. 



Philad. (2) vi. 1866, p. 93. 



Pupil horizontal. Tongue heart-shaped, free behind. Yomerine 

 teeth. Tympanum more or less distinct, or hidden. Fingers free ; 

 toes more or less webbed, the tips not dilated. Outer metatarsals 

 united. Omosternum cartilaginous ; sternum a cartilaginous plate, 

 which ossifies in the fuUy adult state. Terminal phalanges 

 simple. 



South America. 



The development of the upper eyelid into a horn-like dermal 

 appendage has been considered one of the chief characters of the 

 genus Geratophrys. But in O. ornata it is so little marked that it 

 evidently should be used merely as a specific character. The 

 species hitherto separated as Odontoijhrynus (Eeinh. & Liitk.) or 

 Pyxicephalus (Giinth. nee Tschudi) are therefore united with Cera- 

 tophrys, the whole forming a very natural genus. 



Synopsis of the Species. 



I. Upper eyelid with several pointed papillae. 

 A paratoid-llke swelling of the skull 



above and somewhat behind the eye. 1. biyibhosa, p. 222. 



