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Frogs and Toads

Coastal Tailed Frog

Ascaphus truei

Across the regions where it's common, the Coastal Tailed Frog peaks from July to October.

Shows up in 2 ecoregions and 3 states

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Frogs and Toads

Coastal Tailed Frog

Ascaphus truei

Look, don't take. Many states regulate collecting reptiles and amphibians. Photograph it, log it on iNaturalist and leave it where you found it.

Description

The tailed frogs are two species of frogs in the genus Ascaphus, the only taxon in the family Ascaphidae . The "tail" is found only in males, and is actually part of the cloaca, used to insert sperm into the female during mating.Wikipedia ↗

Habitat

The habitat of the tailed frog is cold, fast-moving streams with cobblestone bottoms. Thermal tolerance range in adults is exceptionally low relative to other North American anurans, with eggs rarely found above 20 °C and adults and larvae regularly migrating along microhabitats to reach temperatures below 20 °C whenever possible.Wikipedia ↗

When it's active

Tailed frogs are unique among the anurans in exhibiting a combination of amplexus and copulation during courtship and mating. Courtship occurs at the onset of fall, between September and October, and is carried out in the water.Animal Diversity Web ↗
Ken-ichi Ueda · CC BY 4.0

When and where it's active

Each row is its own calendar, counted from records in that area. Seasons shift by place.

PeakShoulderQuiet

Ecoregions

JanFebMarAprMayJunJulAugSepOctNovDec
Pacific Northwest CoastCascades

States

JanFebMarAprMayJunJulAugSepOctNovDec
CaliforniaOregonWashington

About the Coastal Tailed Frog

When is the Coastal Tailed Frog most active?

Across the regions where it's common, the Coastal Tailed Frog peaks from July to October.

Where does the Coastal Tailed Frog live?

It has enough records to show in 2 ecoregions and 3 states, including California, Oregon, and Washington.