Bufonidae Gray, 1825
Anaxyrus americanus (Holbrook, 1836)
Anaxyrus baxteri (Porter, 1968)
Anaxyrus boreas (Baird & Girard, 1852)
Anaxyrus californicus (Camp, 1915)
Anaxyrus canorus (Camp, 1916)
Anaxyrus cognatus (Say in James, 1823)
Anaxyrus compactilis (Wiegmann, 1833)
Anaxyrus debilis (Girard, 1854)
Anaxyrus exsul (Myers, 1942)
Anaxyrus fowleri (Hinckley, 1882)
Anaxyrus hemiophrys (Cope, 1886)
Anaxyrus houstonensis (Sanders, 1953)
Anaxyrus kelloggi (Taylor, 1938)
Anaxyrus mexicanus (Brocchi, 1879)
Anaxyrus microscaphus (Cope, 1867)
Anaxyrus nelsoni (Stejneger, 1893)
Anaxyrus punctatus (Baird & Girard, 1852)
Anaxyrus quercicus (Holbrook, 1840)
Anaxyrus retiformis (Sanders & Smith, 1951)
Anaxyrus speciosus (Girard, 1854)
Anaxyrus terrestris (Bonnaterre, 1789)
Anaxyrus woodhousii (Girard, 1854)