Name: Rocky Mountain Tailed Frog (Ascaphus montanus)
Order: Frogs (Anura)
Family: Tailed Frog (Ascaphidae)
What they look like
- Coloration usually matches the rocks they live in, can be brown, gray, green, red or yellow
- Have a triangle on nose and a darkish eye stripe
- Males have a ‘tail’ which is actually the male reproductive organ
- Granular roughish skin
Where they live
- View a map of where they live
- Recent evidence has separated this species from Ascaphus truei and a separate GAP map has not been made
- In Washington State are found in the Blue mountains of eastern Washington
- Rocky forest streams, prefer fast moving clear water, rarely found away from water and only on really wet nights
- Breeding season is in the Fall and eggs are laid in the Spring/Summer
- Eggs are laid in strings underneath big rocks
- Tadpoles have a large sucker mouth to cling to rocks in fast water streams
- Can take 4-5 years for tadpoles to complete metamorphosis
Cool Biology Facts
- One of the longest living species of frogs, they can live up to 15-20 years!
- One of the only frogs in the world that have internal fertilization
- Males do not vocalize, possibly because the females cannot hear calls over fast moving water in streams
- They have reduced lungs (breathe mostly through skin) which helps to limit buoyancy in water.
- Fingertips are hardened like claws to help move around in the rocks on the fast moving water.
- Main threats include habitat destruction due to logging and roads. View their status on the IUCN Red List of Threatened Species.