1 68 



Vomerine teeth in two oblique series between the choanae 

 or extending a little beyond their posterior level. Head as 

 long as broad ; snout pointed or rounded, at least as long as 

 the upper eyelid; canthus rostralis obtuse, but distinct; loreal 

 region very oblique, concave; nostril equidistant from eye 

 and tip of snout or nearer the latter; interorbita! space narrower 

 than the upper eyelid; tympanum distinct, '/ 2 to 2 / 3 the width 

 of the eye. Fingers and toes obtusely pointed ; first finger 

 extending beyond second; toes about half webbed ; terminal 

 phalanx of third and fifth, two or three phalanges of fourth 

 toe free from web; outer metatarsals l f 2 or 1 / 3 united ; a narrow 



Fig. 23. Rana limnocharis Boie, X '• 



fringe along the outer side of metatarsus and fifth toe; sub- 

 articular tubercles well developed; a prominent, oblong inner 

 and a very small, round, rarely very indistinct outer meta- 

 tarsal tubercle; the heel reaches the tympanum, the eye, or 

 between eye and tip of snout; tibia about half length of head 

 and body; when the hind limbs are folded at right angles to 

 the body, the heels are more or less overlapping. 



Skin of back with narrow longitudinal ridges; a fold above 

 the tympanum ; a more or less distinct transverse fold behind 

 the eyes; posterior surface of thighs granular; smooth below. 



Upper surface grey, brown or olive green, with darker spots, 

 among which a V-shaped one between the eyes; sometimes 

 a broader or narrower yellow, white, pink or green vertebral 



