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Desmognathus Baird, 1850
Desmognathus Baird, 1850 "1849", J. Acad. Nat. Sci. Philadelphia, Ser. 2, 1: 282. Type species: Triturus fuscus Rafinesque, 1820, by the subsequent designation of Brown, 1908, Proc. Acad. Nat. Sci. Philadelphia, 60: 126. Placed on the Official List of Generic Names by Opinion 92, Anonymous, 1926, Smithson. Misc. Collect., 73: 3.
Leurognathus Moore, 1899, Proc. Acad. Nat. Sci. Philadelphia, 51: 316. Type species: Leurognathus marmorata Moore, 1899, by monotypy. Synonymy by Bernardo, 1994, Am. Nat., 143: 15; Titus and Larson, 1996, Syst. Biol., 45: 451–472. Treatment as a subgenus by Dubois and Raffaëlli, 2012, Alytes, 28: 145.
Geognathus Dubois and Raffaëlli, 2012, Alytes, 28: 145. Type species: Desmognathus wrighti King, 1936, by original designation. Coined as a subgenus of Desmognathus, but which renders the nominal subgenus paraphyletic.
Hydrognathus Dubois and Raffaëlli, 2012, Alytes, 28: 145. Type species: Desmognathus brimleyorum Stejneger, 1895, by original designation. Coined as a subgenus of Desmognathus, but which renders the nominal subgenus paraphyletic.
Dusky Salamanders (Jordan, 1878, Man. Vert. North. U.S., Ed. 2: 192; Conant, Cagle, Goin, Lowe, Neill, Netting, Schmidt, Shaw, Stebbins, and Bogert, 1956, Copeia, 1956: 174; Collins, Huheey, Knight, and Smith, 1978, Herpetol. Circ., 7: 5; Frank and Ramus, 1995, Compl. Guide Scient. Common Names Amph. Rept. World: 31; Collins, 1997, Herpetol. Circ., 25: 6; Crother, Boundy, Campbell, de Queiroz, Frost, Highton, Iverson, Meylan, Reeder, Seidel, Sites, Taggart, Tilley, and Wake, 2001 "2000", Herpetol. Circ., 29: 20; Tilley, Highton, and Wake, 2012, in Crother (ed.), Herpetol. Circ., 39: 16; Tilley, Highton, and Wake, 2012, in Crother (ed.), Herpetol. Circ., 39: 25).
Eastern USA and southeastern Canada, west to eastern Oklahoma and Texas.
See accounts for all species in Petranka, 1998, Salamand. U.S. Canada: 159–216. Anderson and Tilley, 2003, Herpetol. Monogr., 17: 75–110, discussed the systematics of the Desmognathus ochrophaeus complex in central Tennessee. Macey, 2005, Cladistics, 21: 194–202, considered Desmognathus to be the sister taxon of Phaeognathus. Beamer and Lamb, 2008, Mol. Phylogenet. Evol., 47: 143–153, reported on the molecular phylonetics of the coastal plains group and cryptic species diversity. In the tribe Desmognathini of Vieites, Román, Wake, and Wake, 2011, Mol. Phylogenet. Evol., 59: 633. Powell, Collins, and Hooper, 2011, Key Herpetofauna U.S. & Canada, 2nd Ed.: 20–23, provided a key to the species. Dubois and Raffaëlli, 2012, Alytes, 28: 77–161, provided a subgeneric taxonomy that is misleading about evolutionary history, with a paraphyletic subgenus Desmognathus basal to a polyphyletic Geognathus, and a monophyletic Hydrognathus. Raffaëlli, 2013, Urodeles du Monde, 2nd ed.: 419–435, provided brief accounts, photographs, and range maps for the species. Altig and McDiarmid, 2015, Handb. Larval Amph. US and Canada, provided an account of larval morphology of the species.
Contained taxa (23 sp.):
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