384 HYLID^. 



Tongue circular, free and very slightly notched behind. Vome- 

 rine teeth in two slightly oblique series on a level -with the hinder 

 edge of the choanse. Head broader than long ; snout rounded, 

 truncate ; canthus rostralis distinct ; loreal region slightly concave ; 

 the diameter of the eye equals its distance from the nostril ; inter- 

 orbital space broader than the upper eyeli4 ; tympanum very distinct, 

 two thirds the diameter of the eye. Fingers one-third webbed ; no 

 projecting rudiment of pollex ; toes nearly entirely webbed ; sub- 

 articular tubercles weU developed ; disks large, those of fingers as 

 large as or somewhat larger than the tympanum, of toes a little 

 smaller ; a slight cutaneous fold along the inner side of the tarsus. 

 The hind limb being carried forwards along the body, the tibio-tarsal 

 articulation reaches hardly the eye. Skin smooth, 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 beginning from the posterior angle 

 of the eye ; beUy and lower surface of thighs granulate. Blue- 

 green above, whitish beneath. Male with an internal subgular 

 vocal sac ; during the breeding-season brown rugosities on the inner 

 side of the first finger. From suout to vent 83 miUim. 



Australia. 



The coloration varies : — 



A. Spots none ; light line along the tarsus none or very indis- 

 tinct. 



a. $. N. Australia. Dr. J. E. Elsey [P.]. 



6.$. Port Essington. Earl of Derby [P.]. 



c-e. <S . Port Essington. Mi'. Gould. 



/. $ . Murray Island. Mr. Macfarlane [0.]. 



17. ?. Thursday Isl., Torres St. Dr. Coppinger [0.]. 



B. Sides of body with white or pinkish, dark-edged spots ; a 

 similar spot on humerus ; sometimes small spots of the same 

 colour on the back ; a streak of same on the upper lip, from 

 the vertical of the centre of the eye, generally interrupted 

 under the tympanum, extending to the shoulder ; another 

 streak along the outer side of forearpi and outer finger, the 

 inner side of tibia, and the outer side of tarsus and fifth toe ; 

 throat sometimes blue, with pinkish spots. 



h. S- Nicol Bay, N.W. coast Mr. Du Boulay [C.]. 



of Australia. 



i-l. 3 khgt. Port Essington. Earl of Derby [P.]. 



in. $ . Moreton Bay. 



/•• Yg. Sydney. Dr. Gunther [P.]. 



0. ? . Australia. Voyage of the ' Plerald.' 



65. Hyla dolichopsis. 



Pelodryas cseruleus, part., Oiinth. Cat. p, 119, pi. ix. f. b. 

 ITyla cyanea, Sehlcg. Abbild. pi. 0. f. 2. 



