1907.] 



NEW AMAZONIAN TREE-PROG. 



137 



Ventral surface light greenish-yellow, granulated and turning 

 wai-ty about the chest. Upper-arm band on the anterior side 

 with two or three light spots ; some light yellow elongated spots 

 at the anterior border of the vocal sacs. Border of lower lip 

 as well as the finger-disks of a delicate green. 



From a side view with the extremities folded, on the anterior 

 exti-emity the dark bands on upper and lower arms appear to be 

 continuous with the posterior border of the anterior large dark 

 dorsal field ; just as in the posterior extremity the dark bands 

 nearest to the knee (femoro-tibial articulation) coincide with the 

 posterior border of the second large dorsal field, while the bands 

 nearest the heel (tibio-tarsal) coincide with the round sacral spot 

 (text-fig. 57 A), the central spot forming with the lateral bands 

 and dots a fan-like arrangement (confer also text-fig. 57 B). 



Text-fig. 57. 



A. 



B. 



Syla resinifictrix (diagrammatic). 



Comparison of the four specimens available shows a considerable 

 extent of individual variation in the details of ornamentation. 

 However, it is easily seen that certain general features persist 

 fairly well, the most salient among them certainly being the 

 broad light transverse band on the head, running from one eye 

 to the other. 



The iris is golden, with a horizontal and a vertical black bar, 

 forming a cross*. 



This large and strikingly colovired Tree- Frog presents a most 

 curious novelty in its breeding-habits. Some years ago Mr. 

 Boulenger, of the British Museum, published in an interesting 



* As described in S. venulosa by Boulenger, Ann. & Mag. N. H. ser. 5, vol. x. 

 p. 327 (1882). 



