The American toad is a common species of toad found throughout Canada and the eastern United States. It is divided into three subspecies: the eastern American toad, the dwarf American toad and the rare Hudson Bay toad. Recent taxonomic treatments place this species in the genus Anaxyrus instead of Bufo.
The Houston toad is an endangered species of amphibian that is endemic to Texas in the United States. This toad was discovered in the late 1940s and named in 1953. Official estimates are that just 3,000–4,000 adult Houston toads are left in the world.
The western toad is a large toad species, between 5.6 and 13 cm long, native to western North America. A. boreas is frequently encountered during the wet season on roads, or near water at other times. It can jump a considerable distance for a toad. Breeding occurs between March and July in mountainous areas, and as early as January in lower-elevation regions. The female lays up to 17,000 eggs stuck together in strings that adhere to vegetation and other objects along water edges.
The arroyo toad is a species of true toads in the family Bufonidae, endemic to California (U.S.) and Baja California state (México). It is currently classified as an Endangered species on the IUCN Red List of Threatened Species because of habitat destruction.
The red-spotted toad is a toad in the family Bufonidae found in the southwestern United States and northwestern Mexico.
The southern toad is a true toad native to the southeastern United States, from eastern Louisiana and southeastern Virginia south to Florida. It often lives in areas with sandy soils. It is nocturnal and spends the day in a burrow. Its coloring is usually brown but can be red, gray, or black. It is approximately 8 cm (3 inches) long.
The Texas toad is a species of medium-sized toad that occurs in the southern United States and northern Mexico. It breeds in temporary water pools after heavy rains.
Woodhouse's toad is a medium-sized true toad native to the United States and Mexico. There are three recognized subspecies. A. woodhousii tends to hybridize with Anaxyrus americanus where their ranges overlap.
Fowler's toad is a species of toad in the family Bufonidae. The species is native to North America, where it occurs in much of the eastern United States and parts of adjacent Canada. It was previously considered a subspecies of Woodhouse's toad.
The North American green toad, Anaxyrus debilis, also known by its old name Bufo debilis, is a species of toad found in the southwestern United States in the states of Arizona, New Mexico, Colorado, Kansas, Oklahoma and Texas, as well as in northern Mexico in the states of Tamaulipas, San Luis Potosí, Durango, and Zacatecas. It is commonly called green toad.
The Great Plains toad, Anaxyrus cognatus, is a relatively large species of true toad native to central North America.
Incilius bocourti is a species of toad in the family Bufonidae. It is found in southwestern Guatemala and in Chiapas in the adjacent Mexico. Its phylogenetic position is uncertain; it might not to belong to this genus, being the sister taxon of Anaxyrus instead. It is named after Marie Firmin Bocourt, a French zoologist and artist.
Anaxyrus compactilis is a species of toad in the family Bufonidae. It is endemic to Mexico. It is a little known species associated with desert and shrubland. It is threatened by habitat loss caused by conversion of land for agriculture.
Incilius mazatlanensis is a species of toad in the family Bufonidae. It is endemic to Mexico and found in the Pacific coastal plain and slopes from southwestern Chihuahua and northern Sonora south to Colima.
The southwestern toad or Mexican Madre toad is a species of toad in the family Bufonidae. It is endemic to north-western Mexico and found on the Sierra Madre Occidental in eastern Sonora and western Chihuahua and south to south-western Durango. Its natural habitats are conifer forests, commonly along low rivers and streams, its breeding habitat. It is a rare species threatened by habitat disturbance, including alterations causing the desiccation of streams and soils.
The Amargosa toad is a species of toad in the family Bufonidae. It was at one time considered to be a subspecies of the western toad. It is threatened by habitat loss and is classified by the IUCN as being "endangered".
The pine toad is a species of toad in the family Bufonidae. It is endemic to Mexico and found on the Central Mexican Plateau.
The oak toad is a species of toad in the family Bufonidae. It is endemic to the coastal regions of southeastern United States. It is regarded as the smallest species of toad in North America, with a length of 19 to 33 mm.
