A Guide to the Amphibians
and Reptiles of California
Click on a picture for a larger view
Eggs and Tadpoles of
Cascades Frog - Rana cascadae
Slater, 1939
| Eggs | |||
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| Frog with eggs, Kittitas County, Washington |
Egg masses in pond, Kittitas County, Washington |
Collection of egg masses, Kittitas County, Washington |
Large partially-exposed mass of eggs, Kittitas County, Washington |
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| Submerged egg masses, Kittitas County, Washington |
Egg mass, Kittitas County, Washington | Egg mass, Kittitas County, Washington | Egg mass close-up, Kittitas County, Washington |
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| Egg mass close-up, Kittitas County, Washington |
Egg mass close-up, Kittitas County, Washington |
Egg mass close-up, Kittitas County, Washington |
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| Eggs, partly submerged in shallow subalpine meadow pool, 5,600 ft., Pierce County, Washington | Egg mass, 4,000 ft., Clackamas County, Oregon |
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| Tadpoles | |||
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| Larvae still in eggs, about to hatch | Newly-hatched Tadpoles at egg mass | Newly-hatched Tadpoles remaining at egg mass |
Brand new hatchling |
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| Tadpoles,6,400 ft., Siskiyou County | |||
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| Tadpole, King County, Washington | Mature tadpoles, Pierce County, Washington |
Tadpole, King County, Washington | Tadpole, King County, Washington |
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| Tadpole, King County, Washington | Mature tadpole with rear legs developing | Mature tadpole with large rear legs | Mature tadpole with 4 legs |
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| Two leucistic tadpoles, Klamath Mountains, Siskiyou County © Ryan Aberg |
Top/Right: Normally-pigmented tapole Bottom/Left: Leucistic tadpole Klamath Mountains, Siskiyou County © Ryan Aberg |
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| Comparison With Tadpoles of Sympatric Species | |||
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| Rana cascadae - Left Eyes are on top of the head. Pseudacris regilla - Right Eyes are on the sides of the head. |
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| Metamorphs | |||
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| Recent metamorph with reduced tail | Recent metamorph with almost completely absorbed tail | Recent metamorph | Recent metamorph |
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| Recent metamorph | Recent metamorph | ||
| Habitat During Breeding Season (Outside of California) | |||
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| Habitat during the breeding season, meadow pond, 3,900 ft., Kittitas County, Washington (with a frog visible in the foreground of the picture on the far right.) | Breeding habitat, with egg masses and tadpoles, June, Pierce County |
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| Breeding habitat, with egg masses, June, Pierce County, Washington |
Snow-melt pool in subalpine meadow with clusters of recently-laid eggs (shown above) 5,600 ft., June, Pierce County, Washington | ||
| Short Videos of Eggs and Tadpoles | |||
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| Cascades frog tadpoles in a still pool 6,400 ft. up in the mountains in Siskiyou County | Views of some of the many egg masses in a breeding pond in the Washington Cascades Mountains. | ||
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