4. HYLA. 363 



cross bai's ; hinder side of thighs marbled with brown ; beneath 

 whitish, more or less dotted or reticulated with brown. Male with 

 two vocal vesicles, each being situated behind the angle of the 

 mouth ; during the breeding-season the inner side of the first finger 

 is covered with brown rugosities. Prom snout to vent 55 millim. 



Closely allied to H. leprieiirii, from which it differs chiefly by the 

 more oblique loreal region and curved cauthus rostralis. 



Ecuador. 



a. Several spec, J $ . Canelos. Mr. Buckley [C. 



b, c-e. S $ • Sarayacu. Mr. Buckley [C. 

 /, 5 . Paitanga. Mr. Buckley [C 



28. Hyla taurina. 



Osteocephalus taurinus, {Fitz.) Steindachn. Arch, per la Zool. ii.fasc. i. 



p. 77, pi. 6. f. 1-3. 

 ? Osteocephalus flavolineatus, Steindachn. I. c. p." 80, pi. 6. f. 4-7. 

 Trachycephalus (Osteocephalus) tauriuus, Steindachn. Xovara, Amph. 



p. 64. 

 ? Trachycephalus (Osteocephalus) flavolineatus, Steindachn. I. c. 



Tongue suboval, entire, scarcely free behind. Yomerine teeth 

 between the very large choange, in two arched series, fonning together 

 a i~\. Head large, depressed, a little broader than long ; skull 

 strongly ossified in the adult, rugose, the derm, however, being free, 

 the edges of the fronto-parietals forming two more or less prominent 

 carinse ; snont rounded, about once and two thirds as long as the 

 diameter of the eye ; loreal region oblique, deeply concave ; canthus 

 rostralis very strong, straight ; interorbital space broader than the 

 upper eyelid ; tympanum very distinct, nearly as large as the eye. 

 Three outer fingers nearly half webbed ; no rudiment of pollex ; 

 toes entirely webbed ; disks not much smaller than the tympannm ; 

 subarticular tubercles very prominent. The hind limb being carried 

 along the body, tho tibio-tarsal articulation reaches the tip of the 

 snout, or nearly so. Upper sufaces smooth or tubercular ; lower 

 surfaces granulate ; a fold above the tympanum. Reddish, brownish, 

 or blackish above, spotted or marbled with darker ; limbs with broad 

 dark cross bars ; flanks sometimes white-spotted ; beneath whitish, 

 throat and chest spotted with brown. Male with two large ex- 

 ternal vocal vesicles, each being situated behind the angle of the 

 mouth ; during the breeding-season the inner side of the first finger 

 covered with brown rugosities. From snout to vent 100 millim, 



Guianas : N. Brazil ; Colombia. 



