1. THOROPA, San: 
Pupil horizontal; toes webbed, the tips very slightly dilated ; 
diapophyses of sacral yertebra very slightly dilated. 
3. Acris, p. 336. 
Pupil horizontal; toes more or less webbed; tongue adherent or 
moderately free behind; yomerine teeth. 
4, Hyla, p. 337. 
Characters of HZ Aye, but with a dorsal pouch i in the female. 
5. Nototrema, p. 416. 
Pupil horizontal; toes webbed; tongue moderately free behind ; 
yomermne teeth none’... 6.2.5.5: 6. Hylella, p. 419. 
Pupil vertical ; tongue scarcely free behind. 
7. Nyctimantis, p. 421. 
Pupil vertical; tongue extensively free behind; inner toe not 
Mesa Der anya tera aio gers oR! eh 8s 8. Agalychnis, 422. 
Pupil vertical; tongue extensively free behind; inner finger and 
OGRE D POSE Dee Muted es Gigs cy baleen 9. Phyllomedusa, p. 424. 
Pupil vertical; parasphenoid toothed; labial margin much pro- 
MUG tye edna Sts) Absa het ss aad tates 10. Triprion, p.‘431. 
1. THOROPA. 
Thoropa, Cope, Nat. Hist. Rev. 1865, p. 110, and Journ. Ac. Philad. 
(2) vi. 1866, p. 86. 
Ololygon, (Litzing.) Steindachn. Novara, Amph. p. 64. 
Pupil horizontal. Tongue heart-shaped, free behind. Vomerine 
teeth. Tympanum distinct. Fingers and toes free, the tips simply 
swollen, not dilated into regular disks. Outer metatarsals united. 
Brazil. 
This genus, perhaps, should be united with the following. 
1. Thoropa miliaris. 
Rana miliaris, Spix, Spec. Nov. Test. Ran. p. 30, pl. 6. f. 1. 
? Cystignathus missiessii, Hyd. § Soul. Voy. Borste Zool, p. 148, 
pl. 10. f. 2. 
? Thoropa missiessii, Cope, Nat. Hast. Rev, 1865, p. 110. 
” Ololygon abbreviatus, (Jitz.) Steendachn. Novara, Amph. p. 65, pl. 4. 
f. 16-18. 
Hylodes abbreviatus, Hensel, Arch. f. Naturg. 1867, p. 151. 
Ololygon miliaris, Peters, Mon. Berl, Ac, 1872, p. 206. 
Vomerine tecth in two small groups a little behind the level of -—_ 
the choanee. Head broad, flat ; snout truncate; loreal region con- ; 
cave; interorbital space broad; tympanum about two thirds the 
diameter of the eye. First and second fingers equal; toes very 
long, indistinctly fringed; two moderately developed metatarsal 
tubercles, _ Limbs moderately elongate. Upper surfaces smooth or 
