59 



variable in size: from smaller than tympanum (especially in 

 young specimens) to nearly as large as the eye; disks of first 

 finger much smaller than the other ones; disks of toes usually 

 a little smaller than those of fingers ; first finger shorter than 

 second, which is shorter than fourth; fingers '/i* '/^ webbed; 

 third and fifth toe equal in length; toes nearly entirely webbed; 

 subarticular tubercles well developed, single; an oblong inner, 

 and a very feeble circular outer metatarsal tubercle; a slight 

 tarsal fold ; the heel reaches the temple or the eye ; tibia a 

 little less than half the length of head and body. 



Skin smooth or granulate above, much thickened and studded 

 with large pores on the hind part of the head and on the 

 scapular region ; this glandular region delimited outwards by 

 a strong curved fold above the tympanum; throat, belly, 

 sides of body and lower surface of thighs granulate. 



Blue or violet (in life green to biownish olive) above; a 

 white streak along the outer side of the fore-arm and the 

 tarsus may be present; inner fingers and toes white; whitish 

 beneath. From snout to vent ioo mm. 



Male with an external subgular vocal sac, and during the 

 breeding-season brown rugosities on the inner side of the 

 first finger. 



Habitat: New Guinea (Dinawa, Owen Stanley range; 

 Merauke !). — Islands of Torres strait; Australia. 



38. Hyla angiana Blgr. 



Hyla angia/ia Boulenger, Ann. Mag. Nat. Hist., (8) XVI, 1915, p. 402, pi. XVIII. 



Tongue circular, slightly notched behind ; vomerine teeth 

 in two oblique series between the choanae or on a level with 

 their posterior borders. Head rather strongly depressed, as 

 broad as long or a little broader ; snout rounded, as long as 

 the eye or a little longer; canthus rostralis distinct; loreal 

 region feebly concave; interorbital space broader than the 

 upper eyelid ; tympanum very distinct, '/ 3 to *-/ g the diameter 

 of the eye. Fingers and toes with large disks; no projecting 

 rudiment of pollex; fingers ! / 3 webbed, toes webbed to the 

 disks; subarticular tubercles well developed; heel reaching the 

 eye or the tip of the snout ; tibia about half the length from 

 snout to vent. 



Smooth above, granular beneath, areolate on the sides; a 

 strong fold above the tympanum. 



