RANA. 



333 



1892, p. 337 ; Boulenger, The Zool., 1893, p. 355 ; Melsbeimer, 

 Verb. Nat. Ver. Rheinl., 1, 1893, Korr., p. 44; Douglass, 

 Herp. Baden, p. 45 (1894) ; Knautbe, Zool. Gert., xxxv, 1894, 

 p. 286; Werner, Rept. Auiph. Oesterr.-Ung., p. 94 (1897); 

 Diirigen, Deutscbl. Ampli.,p.459,pl. iii, fig. 2(1897); Gadeau 

 de Kerville, Faun. Norm., iv, p. 199 (1897). 

 Rana gracilis, Fatio, Rev. & Mag. Zool. (2), xiv, 1862, p. 81, 

 pis. vi & vii. 



Vomerine teeth in two oblique series or oval groups 

 behind the level of the choanae. 



Head as long as broad or a little broader than long, 

 much depressed. Snout rounded or obtusely acumi- 

 nate, more or less projecting, usually as long as or a 

 little longer than the diameter of the orbit, — excep- 

 tionally a little shorter, as shown on right hand of 

 121; canthus rostralis distinct 



Fig 



loreal region 



Fig. 121. 



Upper views of beads. 



oblique, concave ; nostril equidistant from the eye and 

 the end of the snout, or slightly nearer the former ; the 

 distance between the nostrils exceeds the interorbital 

 width, which equals two-thirds to three-fourths the 

 width of the upper eyelid ; tympanum very distinct, 

 its diameter two-thirds to five-sixths that of the eye; 

 the distance between the eyes and the tympanum 

 equals one-fifth to two-fifths its diameter. 



Fingers obtuse, first extending beyond second ; 

 subarticular tubercles large and very prominent. 



Hind limb very long, the tibio-tarsal articulation 

 reaching the tip of the snout or beyond in the adult, 

 not quite so far in the young, the heels strongly over- 

 lapping when the limbs are folded ; tibia as long as 

 the fore limb or a little shorter, as long as the foot or 



