Southeastern USA from southeastern north Carolina through peninsular Florida westward to eastern and west-central Texas (apparently absent from the delta region of the lower Mississippi Valley), and southward into northeastern and central Mexico, including portions of the states of Tamaulipas, Nuevo León, Coahuila, Querétaro, San Luis Potosí, Hidalgo, Guanajuato, and morelos.
Holotype: not located, according to roze and Tilger, 1983, Cat. Am. Amph. Rept. 316:1-4[1].
Type-locality: Carolina. Restricted to vicinity of Chareston, South Carolina, USA, by Schmidt, 1953, Check List n. Am. Amph. Rept., 6th ed., 280 pp.[223].
Five subspecies, namely M. f. fulvius (Linnaeus, 1766); M. f. fitzingeri (Jan, 1858); M. f. maculatus Roze, 1967; M. f. microgalbineus Brown and Smith, 1942; and M. f. tener (Baird and Girard, 1853), were recognized by Roze and Tilger, 1983, Cat. Am. Amph. Rept. 316:1-4.
