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Tadpoles. R. draytonii is a moderate to large (4.4–14 cm or 1.7–5.5 in) frog. It is the biggest native frog species in the western United States. [10] The back is a brown, grey, olive, or reddish color, with black flecks and dark, irregular, light-centered blotches, and is coarsely granular.
In the late 1960s, an expedition led by Jacques Cousteau reported Titicaca water frogs up to 60 cm (2 ft) in outstretched length and 1 kg (2.2 lb) in weight, [11] [12] [13] making these some of the largest exclusively aquatic frogs in the world (the exclusively aquatic Lake Junin frog can grow larger, as can the helmeted water toad and African goliath frog that sometimes can be seen on land). [14]
The mountain yellow-legged frog (Rana muscosa), also known as the southern mountain yellow-legged frog, is a species of true frog endemic to California in the United States. [ 1 ] [ 2 ] It occurs in the San Jacinto Mountains , San Bernardino Mountains , and San Gabriel Mountains in Southern California and the Southern Sierra Nevada .
Lowland leopard frog * Rana aurora: Northern red-legged frog Rana boylii: Foothill yellow-legged frog Rana cascadae: Cascades frog Rana draytonii: California red-legged frog Rana luteiventris: Columbia spotted frog * Rana muscosa: Southern mountain yellow-legged frog Rana pretiosa: Oregon spotted frog * Rana sierrae: Sierra Nevada yellow-legged ...
These frogs have long been known as Pacific chorus frogs Pseudacris regilla. Then, in 2006, Recuero et al. split that taxonomic concept into three species. [ 5 ] Recuero et al. attached the name Pseudacris regilla with the northern piece, renaming the central piece the Sierran tree frog ( Pseudacris sierra ) and the southern piece the Baja ...
They are found in and near lakes, rivers and wetlands in the Andean highlands at altitudes between 1,000 and 5,200 m (3,300–17,100 ft). [6] The genus includes two of the world's largest fully aquatic frogs, the Lake Junin frog ( T. macrostomus ) and Titicaca water frog ( T. culeus ), [ 7 ] but the remaining are considerably smaller.
Invasive species in California, the introduced species of fauna−animals and flora−plants that are established and have naturalized within California. Native plants and animals can become threatened endangered species from the spread of invasive species in natural habitats and/or developed areas (e.g. agriculture, transport, settlement).
The main predators of the Cascades frogs are the raccoon, mink, coyote, water bugs (Belostomatidae), garter snakes (Thamnophis sirtalis), and several bird species, such as the sharp shinned hawks, owls, Canada jays, and American robin. The long-toed salamander and adult R. cascadae frogs are predators to the eggs and tadpoles, as well.