| Pristimantis hybotragus | |
|---|---|
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Amphibia |
| Order: | Anura |
| Family: | Craugastoridae |
| Genus: | Pristimantis |
| Species: | P. hybotragus |
| Binomial name | |
| Pristimantis hybotragus (Lynch, 1992) | |
| Synonyms | |
Eleutherodactylus hybotragus Lynch, 1992 | |
Pristimantis hybotragus is a species of frog in the family Craugastoridae. It is endemic to Colombia. Its natural habitats are tropical moist lowland forests and rivers. It is threatened by habitat loss.
A frog is any member of a diverse and largely carnivorous group of short-bodied, tailless amphibians composing the order Anura. The oldest fossil "proto-frog" appeared in the early Triassic of Madagascar, but molecular clock dating suggests their origins may extend further back to the Permian, 265 million years ago. Frogs are widely distributed, ranging from the tropics to subarctic regions, but the greatest concentration of species diversity is in tropical rainforests. There are over 7,000 recorded species, accounting for over 85% of extant amphibian species. They are also one of the five most diverse vertebrate orders. Warty frog species tend to be called toads, but the distinction between frogs and toads is informal, not from taxonomy or evolutionary history.
The Craugastoridae, or fleshbelly frogs, are a family of New World direct-developing frogs. As delineated here, following the Amphibian Species of the World, it is a large family containing 746 species. They are found from the southern United States southwards to Central and South America.
Endemism is the ecological state of a species being unique to a defined geographic location, such as an island, nation, country or other defined zone, or habitat type; organisms that are indigenous to a place are not endemic to it if they are also found elsewhere. The extreme opposite of endemism is cosmopolitan distribution. An alternative term for a species that is endemic is precinctive, which applies to species that are restricted to a defined geographical area.
