2. CHOROPHILUS. 333 
II. Dorsal region strongly tuberculate. 
Tibio-tarsal articulation reaching beyond 
the eye; tympanum much smaller than 
DHE CY Os 5 a's Saree eee eee TA 7. verrucosus, p. 335. 
Tibio-tarsal articulation not reaching the 
eye; tympanum nearly as large as the 
OY eae sak oS a et eae 8. septentrionalis, p. 335. 
1. Chorophilus nigritus. 
Pseudacris nigrita, part., Giinth. Cat. p. 97. 
Rana nigrita, Leconte, Ann. Lyc. N. Y.i. p. 282; Harlan, Med. Phys. 
Res. p. 105, and Journ. Ac. Philad. y. p. 341. 
Acris nigrita, Dum. § Bibr. p. 509. 
Cystignathus nigritus, Holl. N.-Amer. Herp. iv. p. 107, pl. 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 choane. 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. 2. Georgia. 
2. Chorophilus ornatus. 
Cystignathus ornatus, Holb. N.- Amer. Herp. iv. p. 103, pl. 25. 
Chorophilus ornatus, Leconte, Proc. Ae. Philad. vii. 1854, p. 428. 
Tongue more rounded than in C. nigritus; hind limb shorter. 
Dove-colour above, with oblong 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, pl. 35. 
Hyla ocularis, Leconte, Proc. Ac. Philad. vii. 1854, p. 429. 
Chorophilus angulatus, Cope, Check-list N. Amer, Rept. p. 80. 
Vomerine teeth in two groups between the choane. Head long, 
