2. CHOEOPHILUS. 333 



II. Dorsal region strongly tuberculate. 

 Tibio-tarsal articulation reaching beyond 



the eye ; tympanum much smaller than 



the eye 7. verrucosus, p. 335. 



Tibio-tarsal articulation not reaching the 



eye ; tympanum nearly as large as the 



eye 8. septentnonaJis, p. 335. 



1. ChoropMlus nigritus. 



Pseudacris nigrita, part., Qiinth. Cat. p. 97. 

 Rana nigrita, Leconte, Ann. Ijyc. N. Y. i. p. 282 ; Harlan, Med. Phys. 



Mes. p. 105, and Journ. Ac. Philad. v. p. 341, 

 Acris nigrita, Dwm. §• Bibr. p. 509. 



Oystignathus nigritus, Holb. JV.-Amer. Herp. iv. p. 107, pi. 26. 

 Chorophilus nigritus, Baird, Proc. Ac. Philad. vii. p. 60; Leconte, 



eod. loc. p. 427. 



Tongue oval, slightly nicked. Vomerine teeth in two slightly 

 oblique groups behind the level of the ohoanse. Head much longer 

 than broad ; snout acuminate, rather prominent, nearly twice as 

 long as the diameter of the eye ; canthus rostralis rather indistinct ; 

 interorbital space a little broader than the upper eyelid ; tympanum 

 half the diameter of the eye. Fingers and toes slender, latter with 

 a slight rudiment of web ; first finger shorter than second ; sub- 

 articular tubercles small ; no outer metatarsal tubercle. The hind 

 limb being carried forwards along the body, the tibio-tarsal articu- 

 -lation reaches the eye. Skin smooth above, granulate beneath. 

 Blackish ash above, with three interrupted black longitudinal bands ; 

 loreal and temporal regions black ; upper lip white-margined, 

 beneath whitish, immaculate. 



South Carolina and Georgia. 



a. 5 . Georgia. 



2. Chorophilus ornatus. 



.Oystignathus onmtws, Holi. N.-Amer. Herp. iv. p. 103, pi. 25. 

 Chorophilus ornatus, Leconte, Proc. Ac. Philad. vii. 1854, p. 428. 



Tongue more rounded than in O. nigritus; hind limb shorter. 

 Dove-colour above, with obloQg spots of dark brown, margined with 

 yellow ; limbs transversely barred. 



South Carolina and Georgia. 



3. Chorophilus ocularis. 



Hylodes ocularis, Holb. N.-Amer. Herp. iv. p. 137, pi. 35. 

 Hyla ocularis, Leconte, Proc. Ac. Philad. vii. 1854, p. 429; 

 Oho/ophilus angulatus, Cope, Check-list N. Amer. Pept. p. SO. 



Vomerine teeth in two groups between the choanK. Head long, 



