Osteocephalus is a genus of frogs, the slender-legged tree frogs, in the family Hylidae found in the Guianas, the Amazon Basin, Venezuela, Colombia, southeastern Brazil, and north-eastern Argentina. Males are warty, while females are smooth.
Osteocephalus helenae is a species of frog in the family Hylidae. It is widely distributed in the Amazon Basin and is known from the lowlands of Bolivia, Peru, Brazil, Colombia, Venezuela, Guyana, and French Guiana. The specific name helenae honors Helen Beulah Thompson Gaige, an American herpetologist. Common name Helena's [sic] treefrog has been proposed for it.
Boana latistriata is a species of frog in the family Hylidae. It is endemic to Brazil and only known from its type locality, Itatiaia National Park, and from Marmelópolis, both in the state of Minas Gerais. The specific name latistriata refers to the wide stripes on the back of this frog.
Osteocephalus cabrerai is a species of frog in the family Hylidae. It is found in the Amazon Basin in Brazil (Manaus), northeastern Peru, Ecuador, Colombia, Guyana, and French Guiana, possibly wider. Some earlier records refer to Osteocephalus buckleyi.
Osteocephalus deridens is a species of frog in the family Hylidae. It is found in the Napo and Pastaza River drainages in eastern Ecuador and in the Loreto Region, northern Peru. The specific name deridens is derived from Latin deridere, meaning "make fun of someone". This alludes to the males calling from the treetops that sound "as if they are laughing at the collectors' vain attempts to reach them". Common name funny slender-legged treefrog has been coined for this species.
Osteocephalus fuscifacies is a species of frog in the family Hylidae endemic to Ecuador. It is known from the Napo River drainage at intermediate elevations. The specific name fuscifacies is derived from Latin fuscus (=tan) and facies (=face), in reference to the uniform tan-colored loreal region and the lack of a light subocular spot. Common name Napo slender-legged treefrog has been coined for this species.
Osteocephalus mutabor is a species of frogs in the family Hylidae found on the western Andean foothills of Ecuador and south to Ucayali Region of Peru. Before Osteocephalus mutabor was described as a new species in 2002, it was confused with Osteocephalus leprieurii.
The Brazilian slender-legged tree frog is a species of frog in the family Hylidae found in Brazil and possibly Bolivia and Peru. Its natural habitat is subtropical or tropical moist lowland forests. It is threatened by habitat loss.
The Manaus slender-legged tree frog, also known as the giant broad-headed tree frog, is a species of frog in the family Hylidae found in Bolivia, Brazil, Colombia, Ecuador, French Guiana, Guyana, Peru, Suriname, and Venezuela. Its natural habitats are subtropical or tropical dry forest, subtropical or tropical moist lowland forest, moist savanna, rivers, intermittent freshwater marshes, and canals and ditches. It is threatened by habitat loss. It is also reported to produce bufotenin.
The Ecuador slender-legged tree frog is a species of frog in the family Hylidae found in Colombia and Ecuador. Its natural habitats are subtropical or tropical moist lowland forests, subtropical or tropical moist montane forests, rivers, intermittent freshwater marshes, rural gardens, and heavily degraded former forests.
Hylinae is a large subfamily of "tree frogs", family Hylidae.
Dryaderces is a small genus of frogs in the family Hylidae. Their known distribution is disjunct, with one species found in the upper Amazon Basin and lower Andean slopes between central Peru and Amazonian Bolivia, and another one in Pará, Brazil. Its sister taxon is Osteocephalus. No phenotypic synapomorphies defining the genus are known.
Osteocephalus castaneicola is a species of frog in the family Hylidae. It is found in lowland Amazonia of northern Bolivia, adjacent southeastern Peru, and western Brazil. It breeds in water-filled fruit capsules of the Brazil nut, a characteristic also alluded to in its specific name castaneicola derived from the Latin castanea, the root of the vernacular name castaña for the Brazil nut, together with the Latin colō meaning "to inhabit".
Osteocephalus sangay, also known as the Sangay casqued tree frog, is a species of frog in the family Hylidae. It is found in eastern Ecuador in Morona Santiago province. O. sangay is in the O. buckleyi species group and is closely related to O. cannatellai.
Scinax tropicalia, or Tropicalia's snouted treefrog, is a frog. Scientists report two distinct populations, both in Atlantic forest in Brazil. It lives no more than 600 meters above sea level.
Sphaenorhynchus canga is a frog in the family Hylidae. It is endemic to Minas Gerais, Brazil.
Osteocephalus festae is a frog in the family Hylidae endemic to Ecuador and Peru. Scientists have seen it between 1000 and 2200 meters above sea level.
Osteocephalus vilarsi is a frog in the family Hylidae endemic to the state of Amazonas in Brazil and the state of Amazonas in Venezuela. Scientists think it might also live in Colombia. This frog lives in white-sand forests.
Osteocephalus duellmani is a frog in the family Hylidae endemic to Ecuador. Scientists know it exclusively from its type locality in the Cordillera del Cóndor. It was located 1910 meters above sea level.
Osteocephalus cannatellai is a frog in the family Hylidae endemic to Ecuador and Colombia. Scientists have seen it between 200 and 1290 meters above sea level.
