Reptiles and Batrachians. 397 
anterior labial shield, which is broader than either the naso- 
labial or the oculo-labial. Supraocular separated from the 
anterior labial. 7 longitudinal and 215 transverse series of 
scales. Brown above, brownish white beneath ; the centre of 
the scales darker, but not forming such conspicuous markings 
asin S. albifrons. Total length 205 millim. ; tail 16 millim. ; 
diameter of body 4 millim. 
One specimen from the province of Tachira, Venezuela. 
Rana Masonii, sp. n. 
Vomerine teeth in two slightly oblique series between the 
choane. Head moderate; snout rounded, slightly longer than 
the diameter of the orbit, with strong canthus rostralis ; loreal 
region deeply concave ; interorbital space a little broader than 
the upper eyelid; tympanum very distinct, half the size of 
the eye. Fingers rather slender, first extending slightly 
beyond second; toes moderate, nearly entirely webbed, tips 
of fingers and toes dilated into small disks; subarticular 
tubercles strong ; inner metatarsal tubercle small, oval; no 
outer metatarsal tubercle. Hind limb very long; if carried 
forward, the femoro-tibial articulation reaches the axilla, and the 
tibio-tarsal articulation far beyond the tip of the snout. Skin 
smooth ; a well-marked glandular lateral fold. Brown above ; 
a blackish streak under the canthus rostralis and a large 
blackish temporal spot; tympanum light, dark in the centre ; 
limbs with dark cross bars. Lower surfaces whitish, brown- 
mottled on the throat and breast. From snout to vent 68 
millim. 
Near Rana jerboa, Gthr., but well distinguished by the 
shorter hind limb. 
A single female specimen, from near Batavia, was presented 
by G. EH. Mason, Esq. 
Microhyla fissipes, sp. n. 
Habit slender. Snout truncate, slightly longer than the 
orbital diameter ; interorbital space broader than the upper 
eyelid. Fingers slender, first much shorter than second ; toes 
long and slender, free, with a slight lateral fringe; tips of 
fingers and toes not swollen; subarticular tubercles distinct ; 
two rather small, obtuse, metatarsal tubercles. The hind 
limb being carried forward along the body, the tibio-tarsal 
articulation reaches the eye. Skin nearly smooth above, with 
small warts on the sides. Olive-brown above, the small warts 
tinged with red; a darker lateral band from the tip of the 
snout, passing through the eye down to the middle of the side ; 
an elongate X-shaped darker marking commencing between the 
