The U.S. state of Arkansas is located in the central part of the country. This list is derived largely from the Herps of Arkansas website. Conservation status is derived from NatureServe and represents the species' status within the state rather than their worldwide status. In Arkansas, there are 25 species of frog and toad, and 32 species of newts and salamanders. Of these species, 18 are ranked as "secure", 6 are "apparently secure", 10 are "vulnerable", 11 are "imperiled", 7 are "critically imperiled", and 1 is "possibly extirpated"; 3 species are not assessed.
Frogs and toads.
Order: Anura - frogs and toads
Family: Bufonidae - true toads
Family: Hylidae - tree frogs
Family: Microhylidae - narrow-mouthed frogs
Family: Ranidae - typical frogs
Family: Scaphiopodidae - American spadefoots
Newts and salamanders.
Order: Caudata
Family: Ambystomatidae - mole salamanders
Family: Amphiumidae - Amphiumas
Family: Cryptobranchidae - giant salamanders
Family: Plethodontidae - lungless salamanders
Family: Proteidae - mudpuppies
Family: Salamandridae - newts
Family: Sirenidae - sirens
Species potentially in Arkansas.
Some species are unconfirmed in Arkansas but may occur. Many of these species are separated from Arkansas by the Mississippi River, and may be common in the bordering regions of Mississippi and Tennessee. Other species may be hypothesized to occur in the state but are not confirmed. Some have gene flow and form species hybrids in the state with a more widespread species, but purebred members of one of the hybrid parent species are not confirmed.