_Remarks._--In life the dorsum is green with dark markings. A male (KU 123171) from Santa Cecilia, Ecuador, was: "Dorsum green with dark brown blotches. Anterior and posterior surfaces of thighs dull blue. Venter brown, flecked with white. Iris greenish bronze with brown horizontal triangles and ventromedian brown line." (W. E. Duellman, field notes, 16 June 1968.) A female (KU 126646) from Lago Agrio, Ecuador, was: "Dorsum pale green with darker green blotches and creamy yellow middorsal stripe. Lateral blotches bronze-tan. Flanks tan with black blotches. Anterior surfaces of thighs dark brown. Dorsal and posterior surfaces of thighs and shanks tan with dark brown blotches. Webbing brown. Suborbital spot green. Postorbital bar black. Belly grayish brown in appearance--tips of granules white; intergranular spaces brown. Iris golden bronze with black flecks peripherally and median, horizontal, reddish brown streak." (W. E. Duellman, field notes, 12 May 1969.) No ontogenetic change in coloration has been noted. =Osteocephalus leprieurii= (Dumeril and Bibron) _Hyla leprieurii_ Dumeril and Bibron, 1841:553 [Holotype.--MNHN 4629 from "Cayenne"; Mons. Leprieur collector]. _Hypsiboas leprieurii_--Cope, 1867:200. _Hyla leprieurii britti_ Melin, 1941:42 [Holotype.--NHMG 489 from the Rio Uaupes, north of the Rio Japu, Territorio do Amazonas, Brasil; Douglas Melin collector]. New synonymy. _Hyla leprieurii leprieurii_--Melin, 1941:42. _Osteocephalus britti_--Goin, 1961:13. _Osteocephalus leprieurii_--Goin, 1961:13. _Justification of Synonymy._--The holotype of _Hyla leprieurii_ is a female having a snout-vent length of 46.6 mm. The diameter of the tympanum is 3.7 mm, 69.8 percent of the diameter of the eye. The dorsal roofing bones are smooth, and the skin on the dorsum is smooth. The penultimate phalanges of the fingers are not included in the webbing. When we examined the specimen on 2 July 1969, it was slightly soft and somewhat faded to a peculiar grayish green color with faint darker transverse bars on the limbs. Dumeril and Bibron (1841:554) described the coloration, as follows: "The loreal region is black. A stripe of the same color extends from the posterior border of the orbit to the corner of the mouth, passing through the tympanum. All of the dorsal parts are grayish white with large transverse brown bands, which are more expanded and less regularly outlined on the back than on the limbs. There is one of these on the occiput that is in a triangular shape. All of the venter is white." (Free translation from French.)