Oe 
7. PHRYNOBATRACHUS.—S8. NYCTIBATRACHUS. 113 
body, the metatarsal tubercles reach far beyond the tip of the snout. 
Back with a few scattered small tubercles, and with a glandular fold 
on each side, reaching from the posterior border of the eye to the sacral 
region, both convergent on the back behind the shoulders. Above 
brownish, variegated with darker; a dark-brown temporal spot ; 
hinder side of thighs with a dark-brown vitta; throat brownish. 
Male with an internal subgular vocal sac. 
West Africa. 
a. d. Coast of Guinea. (Type.) 
b. Sg. Coast of Guinea. Sir A, Smith [P.]. 
3. Phrynobatrachus acridoides. 
Staurois acridoides, Cope, Journ. Ac. Philad. 1867, vi. p. 198. 
Habit slender. Snout narrowed, rounded, slightly prominent, 
with obtuse canthus rostralis ; tympanum distinct, half the size of 
the eye. Toes two-thirds webbed ; tips of fingers and toes dilated 
into small disks; three metatarsal tubercles. The hind limh being 
carried forwards along the body, the metatarsal tubercles reach be- 
yond the tip of the snout. Skin with weak tubercles above, and 
two plice convergent from orbits, then divergent and terminating 
behind scapule. Above dark greyish olive, with frequently a nar- 
row vertebral band; a dark band on side, on front and hind face 
of femur, the latter with a pale one above it. Throat and breast 
brown, white punctate. Limbs cross-barred. 
Zanzibar. 
8. NYCTIBATRACHUS. 
Pupil erect. Tongue free, and deeply notched behind. Vomerine 
teeth. Tympanum hidden. Fingers free; toes webbed, the tips 
dilated into small disks. Outer metatarsals separated by web. 
Omosternum and sternum with a bony style. Terminal phalanges 
bifurcate. 
India. 
This new genus is related to Rana by the general characters, to 
Rhacophorus by the structure of the distal phalanges, but differs 
from both by the erect pupil. This appears to be intermediate 
between the triangular shape, as exhibited by Bombinator, and the 
elliptical exhibited by Alytes, Pelobates, and others. 
1. Nyctibatrachus pygmaeus. (Prats XII. fig. 1.) 
Rana pygmeea, Giinth. Proc. Zool. Soc. 1875, p. 568. 
Vomerine teeth in two small oblique series behind the level of 
the choane. Habit stout. Snout very short, without canthus 
I 
