The sky-blue poison frog is a species of poison dart frog. It is endemic to Peru and known from the lower eastern versant of the Andes in the upper Amazon basin of the San Martín Region.
Hyloxalus anthracinus is a species of frog in the family Dendrobatidae. It is endemic to Ecuador and occurs on the Cordillera Oriental and in the Mazán River, southern Ecuador. The name anthracinus means "coal black" and refers to the black dorsum of males.
Hyloxalus cevallosi, also known as Palanda rocket frog, is a species of poison dart frogs in the family Dendrobatidae. It is named after Gabriel Cevallos García, a famous Ecuadorean writer. This species of frog exists on the east side of the Andes in Ecuador near the Pastaza Province as well as the Zamora-Chinchipe Province. Though it has been recorded in Peru, the records have yet to be confirmed. Its natural habitats are very humid premontane and pluvial premontane forests.
Hyloxalus edwardsi is a species of frogs in the family Dendrobatidae. It is endemic to the Cordillera Oriental in the Cundinamarca Department, Colombia. It is named after Stephen R. Edwards from the University of Kansas Natural History Museum, a colleague of John D. Lynch who described this species in 1982.
Hyloxalus exasperatus is a species of frog in the family Dendrobatidae. It is endemic to Ecuador and found on the eastern slopes of the Andes in Pastaza and Morona-Santiago Provinces. However, it is suggested that specimens from Pastaza represent a different, possibly undescribed species.
Hyloxalus faciopunctulatus is a species of frog in the family Dendrobatidae. It is endemic to Colombia where it is only known from its type locality, Puerto Nariño in the Amazonas Department, near the Peruvian border. It is likely to be found in Peru and Brazil.
Hyloxalus fuliginosus is a species of frog in the family Dendrobatidae. It may be endemic to Ecuador where it is known from the Amazonian slopes of the Andes in the northern Ecuador, with some sources reporting it from Colombia and Venezuela.
Hyloxalus infraguttatus is a species of frog in the family Dendrobatidae. It is found on the Pacific slopes of Ecuadorian Andes at elevations of 70–1,500 m (230–4,920 ft) asl.
Hyloxalus marmoreoventris is a species of frogs in the family Dendrobatidae. It is endemic to Ecuador and only known from its type locality on the eastern slope of the Andes in the Tungurahua Province. It is a little known species which possibly has not been observed after it was first described.
Hyloxalus mittermeieri is a species of frogs in the family Dendrobatidae. It is endemic to Peru and only known from the area of its type locality on the eastern slopes of the central Andes in the San Martín Region. Its natural habitats are tropical montane forests near streams. It is only known from two specimens, from 1,620 and 2,050 m asl on the road between Rioja and Balzapata.
Hyloxalus peculiaris is a species of frogs in the family Dendrobatidae. It is endemic to Ecuador where it is only known from its type locality, "Pailas" in the Morona-Santiago Province, on the eastern slope of the Andes. Its natural habitats are cloud forests. It is threatened by habitat loss, and the forest at the type locality was already fragmented in 1996.
Hyloxalus peruvianus is a species of frog in the family Dendrobatidae. It is found in Peru where it occurs on the lower Amazonian slopes of the Andes; its range possibly extends into adjacent Bolivia and Ecuador. Its natural habitats are premontane forests. It is threatened by habitat loss.
Hyloxalus pinguis is a species of frog in the family Dendrobatidae. It is endemic to Colombia where it is only known from its type locality, on the Cordillera Central, the Cauca Department. Its natural habitats are cloud forests. The type locality is in the Puracé National Natural Park.
Hyloxalus ramosi is a species of frog in the family Dendrobatidae. It is endemic to Colombia where it is known from its type locality near San Rafael in the Antioquia Department, and from the Caldas Department, both on the Cordillera Central. Its natural habitats are sub-Andean forests. It lives in the leaf-litter. Larval habitat is unknown.
Hyloxalus ruizi is a species of frogs in the family Dendrobatidae. It is endemic to Colombia and only known from the Eastern Ranges of the Colombian Andes, in the Cundinamarca Department. Its natural habitats are cloud forests. It occurs on the forest floor and along streams. It is threatened by habitat loss.
Hyloxalus shuar is a species of frog in the family Dendrobatidae. It is endemic to Ecuador and occurs on the eastern slopes of the Andes. Common names Santiago rocket frog and Shuar rocket frog have been proposed for it.
Hyloxalus sylvaticus is a species of frog in the family Dendrobatidae. It is endemic to northern Peru and found on the Amazonian slopes of the Eastern Andes and in the Huancabamba Depression. Its range might extend to Ecuador. Its natural habitats are cloud forests. It is active along streams by day and can hide under rocks within and along streams at night. It is threatened by habitat loss in parts of its range.
Hyloxalus toachi is a species of frog in the family Dendrobatidae. It is endemic to northwestern Ecuador.
Hyloxalus vergeli is a species of frog in the family Dendrobatidae. It is endemic to Colombia and only known from the region of its type locality in the Cundinamarca Department, on the . Its natural habitats are cloud forests near streams. It tolerates some minor habitat disturbance.
Hyloxalus vertebralis is a species of frog in the family Dendrobatidae. It is endemic to southern Ecuador and occurs in the inter-Andean valleys and on the western slopes of the Andes. Its natural habitats are cloud forests, ponds in open areas, and streams. It is threatened by habitat loss, though its recent decline is probably caused by chytridiomycosis.
