Amphiuma Garden In Smith, 1821, Select. Correspond. Linnaeus, 1: 333, 599. Type species: Amphiuma means Garden, 1821, by monotypy.
Chrysodonta Mitchill, 1822, Am. Med. Recorder, 5: 503. Type species: Chrysodonta larvaeformis Mitchill, 1822 (= Amphiuma means Garden, 1821), by monotypy. Synonymy by Cuvier, 1827, Mem. Mus. Natl. Hist. Nat. Paris, 14: 2; Harlan, 1827, J. Acad. Nat. Sci. Philadelphia, 5: 317; Wagler, 1830, Nat. Syst. Amph.: 209; Tschudi, 1838, Classif. Batr.: 97; Gray, 1850, Cat. Spec. Amph. Coll. Brit. Mus., Batr. Grad.: 55; Duméril, Bibron, and Duméril, 1854, Erp. Gen., 9: 201.
Sirenoidis Fitzinger, 1843, Syst. Rept.: 34. Type species: Amphiuma didactylum Cuvier, 1827 (= Amphiuma means Garden, 1821), by monotypy. Synonymy by Gray, 1850, Cat. Spec. Amph. Coll. Brit. Mus., Batr. Grad.: 54; Ryder, 1879, Proc. Acad. Nat. Sci. Philadelphia, 1879: 14-15.
Muraenopsis Fitzinger, 1843, Syst. Rept.: 34. Type species: Amphiuma tridactylum Cuvier, 1827, by monotypy. Synonymy by Ryder, 1879, Proc. Acad. Nat. Sci. Philadelphia, 1879: 14-15.
Amphiumas (Conant, Cagle, Goin, Lowe, Neill, Netting, Schmidt, Shaw, Stebbins, and Bogert, 1956, Copeia, 1956: 174; Collins, Huheey, Knight, and Smith, 1978, Herpetol. Circ., 7: 4; Frank and Ramus, 1995, Compl. Guide Scient. Common Names Amph. Rept. World: 27; Tilley, Highton, and Wake, 2008, in Crother (ed.), Herpetol. Circ., 37: 14; Collins, 1997, Herpetol. Circ., 25: 5; Tilley, Highton, and Wake, 2012, in Crother (ed.), Herpetol. Circ., 39: 24).
Two-toad Congo Snakes (Jordan, 1878, Man. Vert. North. U.S., Ed. 2: 197).
Southeastern USA.
Reviewed by Salthe, 1973, Cat. Am. Amph. Rept., 147: 1-4. Pyron and Wiens, 2011, Mol. Phylogenet. Evol., 61: 543-583, suggested a phylogenetic tree of the three species.
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