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Frogs and Toads are members of the taxonomic order Anura. Order Anura is further subdivided into smaller taxonomic groups called families. In Alabama, Mississippi, Kentucky, and Tennessee, six families are represented: toads of the family Bufonidae, new world tree frogs of the family Hylidae, North American narrow-mouthed toads of the family Microhylidae, riparian frogs of the family Ranidae; and spadefoots of the family Scaphiopodidae. Within these families, there are 42 frog and toad species in the SAIN geographic region according to NatureServe Explorer database records retrieved in 2008.

Frog and Toad species of Tennessee, Alabama, Mississippi, and Kentucky are organized on this page by taxonomic families.

	Narrow-mouthed Toads (family Microhylidae) One species of narrow-mouthed toad occurs in the SAIN region.
	Neotropical Frogs (family Leptodactylidae) One non-native neotropical frog occurs in the SAIN region.
	New World Tree Frogs (family Hylidae) 18 new world tree frog species inhabit the SAIN region.
	Riparian Frogs (family Ranidae) 14 riparian frog species inhabit the SAIN region.
	Spadefoots (family Scaphiopodidae) One spadefoot occurs in the SAIN region.
	Toads (family Bufonidae) Seven toad species inhabit the SAIN region.

To view a list of Frog and Toad species found in Alabama, Mississippi, Kentucky, and Tennessee, click "more" below.