Torrent salamander
The torrent salamanders or Cascade salamanders are a family of salamanders with only one genus, Rhyacotriton. The torrent salamanders are endemic to the United States in the Pacific Northwest.Species
The genus Rhyacotriton includes four species:
- Cascade torrent salamander
- Columbia torrent salamander
- Olympic torrent salamander
- Southern torrent salamander
Taxonomy
Originally the genus Rhyacotriton was placed in the family Ambystomatidae, later in the family Dicamptodontidae, and finally in 1992 it was placed into a family of its own. At the same time the only species Rhyacotriton olympicus was split into four species due to genetic analysis.