332 HTLIDiE. 



with a few very small warts ; lower surfaces smootli, except the. 

 lower heUy and the thighs, which are granulate. Hesh-ooloured. 

 above, brown-marbled ; Umbs cross-barred. Male without vocal 

 sac; during the breeding-season the inner side of the first two 

 fingers furnished with blackish rugosities. 

 Brazil. 



2. CHOEOPHILUS*. 



ChoropMlus, Baird, Proc. Ac. Philad. vii. 1854, p. 60; Cope, Journ. 



Ac. Philad. (2) vi. 1866, p. 86. 

 Helocoetes, Baird, I. c. 

 Pseudaeris, Fitzing. Syst. JRept. p. 31 (name only) ; Oiinth. Cat. p. 97 ; 



Cope, Nat. Hist. Heo. 1865, p. 110. 

 Acri9, sp., Dum^ S,- Bibr. viii. p. 509. 

 Cystignathxis, sp., HoTbr. N.-Amer. Herp. iv. p. 107 ; Oiinth. Cat. 



p. 29. 



Pupil horizontal. Tongue oval or subcircular, entire or slightly 

 nicked, and free behind. Vomerine teeth. Tympanum distinct. 

 Fingers free ; toes nearly free, the tips dilated into very small disks. 

 Outer metatarsals united. Omosternum cartilaginous ; sternum a 

 cartilaginous plate. Diapophyses of sacral vertebra very slightly 

 dilated. 



North America ; Peru. 



Synopsis of the Species. 

 I. Skin smooth above, or nearly so. 



Vomerine teeth behind the level of the 

 . choanse ; tibio-tarsal articulation reach- 

 ing the eye; back with longitudinal 

 dark bands 1. nigritus, p. 333. 



Tongue subcircular ; back with oblong, 

 dark, light-margined spots ; limbs re- 

 gularly cross-barred 2. ornatus, p. 333. 



Head long, narrow ; back immaculate . . 3. ocularis, p. 333. 



Vomerine teeth behind the level of the 

 choanse ; tibio-tarsal articulation not 

 reaching the eye ; back immaculate . . 4. copii, p. 334. 



Vomerine teeth on a level with the hinder 

 edge of the choanse ; tibio-tarsal ar- 

 ticulation reaching the eye ; back 

 immaculate 5. cuzcanus, p. 334. 



Vomerine teeth between the choanas; 

 tibio-tarsal articulation reaching the 

 eye ; back with longitudinal dark bands 

 or series of spots 6. triseriatus, p. 335. 



* 1. Heloceetes feriarum, Baird, Proc. Ac. Philad. yii. p. 60.— Carlisle, Penna. 



