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The river frog (Lithobates heckscheri) is a species of aquatic frog in the family Ranidae. It is endemic to the southeastern United States . Its natural habitats are temperate rivers , swamps , freshwater lakes and freshwater marshes .
The list below largely follows Darrel Frost's Amphibian Species of the World (ASW), Version 5.5 (31 January 2011). Another classification, which largely follows Frost, but deviates from it in part is the one of AmphibiaWeb , which is run by the California Academy of Sciences and several of universities.
The Amphibian Fauna of Peninsular Malaysia. Kuala Lumpur: Tropical Press. Inger, Robert F. (1966). The Systematics and Zoogeography of the Amphibia of Borneo. Chicago (IL): Field Museum of Natural History. ISBN 983-99659-0-5. Inger, Robert F.; Stuebing, Robert B. (1997). A Field guide to the Frogs of Borneo (2nd ed.). Kota Kinabalu, Borneo ...
The numbers of species cited above follows Frost and the total number of known (living) amphibian species as of March 31, 2019, is exactly 8,000, [12] of which nearly 90% are frogs. [ 13 ] With the phylogenetic classification, the taxon Labyrinthodontia has been discarded as it is a polyparaphyletic group without unique defining features apart ...
The world’s frogs, salamanders, newts and other amphibians remain in serious trouble. A new global assessment has found that 41% of amphibian species that scientists have studied are threatened ...
The new species was identified by its coloring and body shape, the study said. DNA analysis found the new species had between about 12% and 19% genetic divergence from other snakehead fish in Myanmar.
The research vent-hole in Jelševnik near Črnomelj, where quality checks of water and sediments are performed regularly, and where activities of black olms are registered with an IR camera The black olm ( Proteus anguinus parkelj Sket & Arntzen, 1994 ) is the only recognized subspecies of the olm other than the nominate subspecies .
In a small river of Colombia, a scaly creature with a white “collar” swam through the water. Or at least it tried to. ... DNA analysis found the new species had at least 10% genetic divergence ...