84 



BATRACHIA. 



interocular and postocular regions are broadly concave. The eyes are 

 proportionally large and circular ; their anterior rim is protected by a 

 small ridge : a downwards continuation of the can thus rostralis. There 

 is also a postocular ridge : a downwards continuation of the supra-orbital 

 or supra-tympanic ridge. Their diameter is much greater than the 

 distance between their anterior rim and the extremity of the snout. 

 The upper lid is covered with small warts and granules. The tym- 

 panum is regularly elliptical, oblique, rather large, very distinct, but 

 smaller than the eyes. The parotids constitute an elongated swell- 

 ing, contiguous anteriorly to the supra-tympanic ridge, and posteriorly 

 to a glandulous, abdominal, cutaneous fold, of which we shall say a 

 few words further on. The mouth is large ; the upper jaw ernargi- 

 nated ; the tongue elongated, club-shaped, laterally and posteriorly 

 free, anteriorly slightly bifurcated. The inner nostrils are very large 

 and subcircular ; the openings of the Eustachian tubes being rather 

 small and inconspicuous. 



The limbs, fingers, and toes, are still more slender than in the follow- 

 ing species ; the first finger is longer than the second, and but a little 

 shorter than the third; the fourth is the shortest, and the most exiguous. 

 The palm of the hand is granular, and the articulations of the fingers 

 are provided beneath with small tubercles. There is a quite large, 

 subcircular, metacarpal disk, and a small tubercle at the base of the 

 first finger, but not conspicuous. The toes are but slightly webbed 

 and subdepressed like the fingers. The sole of the feet is densely 

 granular, and the tubercles under the articulations of the toes are 

 small and conical. An elongated tubercle may be seen at the base of 

 the inner toe, and two metatarsal ones, smaller and less conspi- 

 cuous. The tarsus is provided internally with a membranous fold. 



The skin on the head and dorsal region, properly so called, is 

 minutely granular ; on the sides of the abdomen the granulation is 

 larger and more dense, intermingled with small papula3'Or pustules. 

 A cutaneous ridge may be traced from the parotids to the groins. 

 The legs, themselves, down to the fingers and toes, are densely covered 

 with granules, still more apparent than on the sides of the abdomen, 

 but the pustules do not extend beyond the elbows and knees. The 

 lower surface of the head, that of the body and legs, is densely 

 studded with small granules, a little more conspicuously posteriorly 

 than anteriorly. 



