248 



HYLIDJ]. 



Fig. 91. 



Open mouth. 



Hyla arborea, var. savignyi, Boulenger. Cat., p. 380; Camerano, 



Mem. Ace. Turin. (2), xxxv, 1883, p. 226, fig., and Boll. 



Mus. Torin., viii, 1893, No. 162, p. 4. 

 Hyla arborea, var. intermedia, Boulenger, 1. c p. 381. 

 Hyla barytonus, Heron-Royer, Bull. Soc. Zool. France, 1884, 



p. 220, pi. ix, and Bull. Soc. Et. Sc. Angers, xiv, 1885, p. 104. 

 Hyla arborea, var. orientalis, Bedriaga, Bull. Soc. Nat. Mosc , 



1889, p. 473. 

 Hyla arborea, var. molleri, Bedriaga, 1. c, p. 474. 



Vomerine teeth in two small, round or transversely 

 oval groups between the choanas, which are not larger 

 than the Eustachian tubes. Tongue cir- 

 cular, moderately free and nicked behind. 

 Head broader than long; snout short, 

 rounded, scarcely projecting, as long as 

 the diameter of the orbit; canthus ros- 

 tralis distinct ; loreal region slio-htlv 

 oblique, grooved ; nostril midway be- 

 tween the eye and the tip of the snout, 

 or a little nearer the latter; eye mode- 

 rate ; interorbital space as broad as the 

 upper eyelid, a little broader than the distance between 

 the nostrils ; tympanum perfectly distinct, not more 

 than half the diameter of the eye. 



Fingers moderate, webbed at the base, the rudi- 

 mentary web sometimes very indistinct, the terminal 

 disks nearly as large as the tympanum; first finger 

 shorter than second, second and fourth nearly equal, 

 third longest ; subarticular tubercles large, prominent ; 

 no distinct palmar tubercles. A strong fold separates 

 the hand from the forearm above. 



Hind limb moderate; the tibio-tarsal articulation 

 reaches the tympanum, the eye, or between the eye 

 and the nostril ; tibia as long as or a little longer than 

 the femur, the heels nearly meeting or overlapping 

 when the legs are folded at right angles to the rhachis. 

 Foot as long as or shorter than the tibia; toes one- 

 half to two-thirds webbed, the disks a little smaller 

 than those of the finp;ers ; subarticular tubercles well 

 developed, prominent; a round or oval inner meta- 

 tarsal tubercle, measuring one-third to two-fifths the 



