The glass frogs belong to the amphibian family Centrolenidae. While the general background coloration of most glass frogs is primarily lime green, the abdominal skin of some members of this family is transparent and translucent, giving the glass frog its common name. The internal viscera, including the heart, liver, and gastrointestinal tract, are visible through the skin. When active their blood makes them visible; when sleeping most of the blood is concealed in the liver, hiding them. Glass frogs are arboreal, living mainly in trees, and only come out for mating season. Their transparency conceals them very effectively when sleeping on a green leaf, as they habitually do.
Ikakogi tayrona, or the Magdalena giant glass frog, is a species of frog in the family Centrolenidae. It is endemic to the Sierra Nevada de Santa Marta, Magdalena Department, Colombia. It is the only glass frog that is known to show maternal care.
Nymphargus chami is a species of frog in the family Centrolenidae, formerly placed in Cochranella. It is endemic to Colombia where it occurs on the Cordillera Occidental in the Antioquia and Risaralda departments.
Nymphargus cristinae is a species of frog in the family Centrolenidae, formerly placed in Cochranella. It is endemic to Colombia where it is only known near its type locality on the western slope of the Cordillera Occidental in Urrao, Antioquia. Its natural habitat is sub-Andean primary forest. It occurs on vegetation next to streams with canopy cover over the stream. Its conservation status is unclear but habitat degradation and loss caused by cattle raising, timber extraction, and cultivation of illegal crops are major threats.
Nymphargus garciae is a species of frog in the family Centrolenidae, formerly placed in Cochranella. It is endemic to the eastern slopes of the Cordillera Central, Colombia. Its natural habitat is vegetation alongside streams in sub-Andean and Andean forests. It requires gallery forest for reproduction, and is therefore very sensitive to disturbance of this kind of habitat. It is threatened by habitat loss.
Nymphargus nephelophila is a species of frogs in the family Centrolenidae, formerly placed in Cochranella. It is endemic to the Caquetá Department, Colombia, where it is known from the eastern versant of the Cordillera Oriental near Florencia. Its natural habitat is vegetation near streams in cloud forest, including secondary forest. Habitat loss is a threat to this species, but it is too little known to assess its conservation status.
Nymphargus oreonympha is a species of frog in the family Centrolenidae, formerly placed in Cochranella. It is endemic to Colombia where it occurs on the Cordillera Oriental in Florencia, the Caquetá Department. Its natural habitat is cloud forest, including secondary forest, where it occurs on vegetation near streams. Its conservation status is unclear.
Nymphargus posadae is a species of frog in the family Centrolenidae, formerly placed in Cochranella. It inhabits the eastern slopes of the Andes of Colombia, Ecuador, and northeastern Peru. It is reasonably common in Colombia but rare in Ecuador.
Nymphargus rosada is a species of frog in the family Centrolenidae, formerly placed in Cochranella. It is endemic to Colombia where it is known from the eastern slopes of the Cordillera Central. Its natural habitats are sub-Andean forests alongside streams. It is threatened by habitat fragmentation and loss caused by agricultural expansion, timber extraction, and water pollution.
Nymphargus ruizi is a species of frog in the family Centrolenidae, formerly placed in Cochranella. It is endemic to Colombia where it is known from the western slopes of the Cordillera Occidental and the eastern slopes of the Farallones de Cali. Its natural habitats are sub-Andean forests next to streams. It is threatened by habitat loss caused by agricultural expansion, logging, human settlement, and water pollution.
Nymphargus spilotus is a species of frog in the family Centrolenidae, formerly placed in Cochranella. It is endemic to Colombia where it occurs on the Cordillera Central in Samaná, the Caldas Department. Its natural habitat is sub-Andean forest where it occurs on vegetation alongside streams. Its conservation status is unclear.
Pristimantis permixtus is a species of frog in the family Strabomantidae. It is endemic to Colombia where it is found on the Cordillera Occidental and the Cordillera Central in Antioquia, Caldas, Quindío, Risaralda, Tolima, and Valle del Cauca departments.
Pristimantis piceus is a species of frog in the family Strabomantidae. It is endemic to Colombia and occurs in the Cordillera Central between the Antioquia Department in the north and the Cauca Department in the south. Many specimens are black in color, and the specific name piceus is Latin meaning "pitch-black".
Pristimantis racemus is a species of frog in the family Strabomantidae. It is endemic to Colombia and known from the páramos of Cordillera Central along the Valle del Cauca–Tolima Department borderland north to the Quindío Department. Common name Las Hermosas robber frog has been coined for it. The specific name racemus is Latin and means "a bunch of berries", and refers to the warty skin of this species.
Serranobatrachus ruthveni is a species of frog in the family Craugastoridae. It is endemic to the north-western slope of the Sierra Nevada de Santa Marta in the Magdalena Department, northern Colombia. The specific name ruthveni honors Alexander Grant Ruthven, an American herpetologist. Common name Ruthven's robber frog has been coined for this species.
Pristimantis simoteriscus is a species of frog in the family Strabomantidae. It is endemic to Colombia and occurs in the Cordillera Central in the Tolima, Quindío, and Caldas Departments. There is also an unconfirmed record from the Valle del Cauca Department. The specific name simoteriscus is diminutive of simoterus, chosen because adult P. simoteriscus resemble juvenile individuals of Pristimantis simoterus.
Pristimantis simoterus is a species of frog in the family Strabomantidae. It is endemic to Colombia and known from the Cordillera Central in the Caldas, Risaralda, Quindío, and Tolima Departments. Common name Albania robber frog has been coined for it. The specific name simoterus is derived from Greek simos meaning "snub-nosed", in reference to the short snout of this species.
Tachiramantis tayrona is a species of frog in the family Strabomantidae. It is endemic to the north-western Sierra Nevada de Santa Marta, Colombia. The specific name tayrona refers to the pre-Columbian Tairona culture. Lynch and Ruíz-Carranza suggest that this species might have been a model for the gold frogs unearthed from archaeological sites in the area.
Nymphargus is a genus of glass frogs in the subfamily Centroleninae, which was established in 2007. They are distributed in the Andean slopes of Colombia, Ecuador, Peru, and Bolivia. They are characterized by lacking webbing among the outer fingers, lacking humeral spines in adult males, and having a lobed liver covered by a transparent hepatic peritoneum. They can be more specifically characterized as having a head that is darker green than the body, there being yellow spots surrounded by black on head and body, upper eyelids are dark lavender. The conservation status of the Nymphargus frogs was largely believed to be critically endangered due to the minimal research done on this genus. Once the scope of the research was broadened the conservation status was able to be determined as being vulnerable. More frogs of different variations were found increasing the genus’ population.
Centrolene savagei is a species of frog in the family Centrolenidae that is endemic to the Andes of western Colombia, specifically the Cordillera Occidental and Cordillera Central. Its common name is Savage's Cochran frog.
