Pseudoeurycea Taylor, 1944

Class: Amphibia > Order: Caudata > Family: Plethodontidae > Subfamily: Hemidactyliinae > Genus: Pseudoeurycea

Pseudoeurycea Taylor, 1944, Univ. Kansas Sci. Bull., 30: 209. Type species: Spelerpes leprosus Cope, 1869, by original designation.

Lineatriton Tanner, 1950, Great Basin Nat., 10: 39. Type species: Spelerpes lineola Cope, 1865, by original designation. Synonymy by Frost, Grant, Faivovich, Bain, Haas, Haddad, de Sá, Channing, Wilkinson, Donnellan, Raxworthy, Campbell, Blotto, Moler, Drewes, Nussbaum, Lynch, Green, and Wheeler, 2006, Bull. Am. Mus. Nat. Hist., 297: 178 (see comment).

Ixalotriton Wake and Johnson, 1989, Contrib. Sci. Nat. Hist. Mus. Los Angeles Co., 411: 2. Type species: Ixalotriton niger Wake and Johnson, 1989, by original designation. Synonymy by Frost, Grant, Faivovich, Bain, Haas, Haddad, de Sá, Channing, Wilkinson, Donnellan, Raxworthy, Campbell, Blotto, Moler, Drewes, Nussbaum, Lynch, Green, and Wheeler, 2006, Bull. Am. Mus. Nat. Hist., 297: 178. Vieites, Román, Wake, and Wake, 2011, Mol. Phylogenet. Evol., 59: 632, suggested that existing data might be wrong and retained Ixalotriton.

English Names

False Brook Salamanders (Liner, 1994, Herpetol. Circ., 23: 13; Frank and Ramus, 1995, Compl. Guide Scient. Common Names Amph. Rept. World: 33; Liner and Casas-Andreu, 2008, Herpetol. Circ., 38: 30)

Veracruz Worm Salamanders (Lineatriton [no longer recognized]: Liner, 1994, Herpetol. Circ., 23: 12).

Lined Salamanders (Lineatriton [no longer recognized]: Frank and Ramus, 1995, Compl. Guide Scient. Common Names Amph. Rept. World: 32).

Mexican Slender Salamanders (Lineatriton [no longer recognized]: Tanner and Dundee, 2000, Cat. Am. Amph. Rept., 705: 1-4).

Distribution

Nuevo León and eastern Sonora (Mexico) south to Guatemala.

Comment

Wake and Elias, 1983, Contrib. Sci. Nat. Hist. Mus. Los Angeles Co., 345: 13, noted that Pseudoeurycea is delimited solely by retention of primitive morphological features. The Pseudoeurycea gadovi, Pseudoeurycea rex, and Pseudoeurycea leprosa groups (of Wake and Lynch, 1976, Sci. Bull. Nat. Hist. Mus. Los Angeles Co., 25: 1-65), appear to be closely related, according to Maxson and Wake, 1981, Herpetologica, 37: 109-117. Lynch, Wake, and Yang, 1983, Copeia, 1983: 884-894, reported on electrophoretic variation in Mexican forms and discussed the problems with delimiting species groups. Parra-Olea, 2002, Mol. Phylogenet. Evol., 22: 234-246, presented molecular evidence for the paraphyly of Pseudoeurycea with respect to Lineatriton (which is polyphyletic on the basis of evidence provided in the same paper) and recommended (but did not execute) a partition of Pseudoeurycea to maintain Lineatriton (polyphyletic) and Ixalotrition. Canseco-Márquez and Parra-Olea, 2003, Herpetol. J., 13: 21-26, recognized the Pseudoeurycea juarezi group and continued the discussion of Pseudoeurycea paraphyly. Lara-Góngora, 2003, Bull. Maryland Herpetol. Soc., 39: 21-57, provided a discussion and an identification matrix for the Pseudoeurycea leprosa group. Parra-Olea and Wake, 2001, Proc. Natl. Acad. Sci. USA, 98: 7888-7891, confirmed with additional molecular evidence that continued recognition of Lineatriton renders Pseudoeurycea paraphyletic (and Lineatriton polyphyletic), although they took no action to remediate this taxonomic anomaly. Parra-Olea, 2002, Mol. Phylogenet. Evol., 22: 244, regarded the problem of polyphyly of Lineatriton and the attendant paraphyly of Pseudoeurycea "difficult to solve" because of concerns about notions of overall morphological similarity being incongruent with evolutionary history. Brodie, Mendelson, and Campbell, 2002, Herpetologica, 58: 194-204, revised Lineatriton but did not see the earlier paper by Parra-Olea, 2002, Mol. Phylogenet. Evol., 22: 234-246. Canseco-Márquez, Gutiérrez-Mayén, and Salazar-Arenas, 2000, Herpetol. Rev., 31: 259-263, reported an unnamed Pueblan population of former Lineatriton. Canseco-Márquez and Parra-Olea, 2003, Herpetol. J., 13: 21-26, reported that recognition of Lineatriton renders the Pseudoeurycea leprosa group paraphyletic. Frost, Grant, Faivovich, Bain, Haas, Haddad, de Sá, Channing, Wilkinson, Donnellan, Raxworthy, Campbell, Blotto, Moler, Drewes, Nussbaum, Lynch, Green, and Wheeler, 2006, Bull. Am. Mus. Nat. Hist., 297: 178, discussed the paraphyly of Pseudoeurycea and polyphyly of Lineatriton and as a remedy placed Lineatriton and Ixalotriton in the synonymy of Pseudoeurycea, rendering the latter monophyletic and former Lineatriton merely highly apomorphic members of the Pseudoeurycea leprosa group. Wiens, Parra-Olea, García-París, and Wake, 2007, Proc. R. Soc. London, Ser. B, Biol. Sci., 274: 918-928, confirmed the paraphyly of Pseudoeurycea with respect to Ixalotriton, Parvimolge, and a polyphyletic Lineatriton, which they continued to recognize even though no evidence so far suggested would support monophyly of Pseudoeurycea excluding Ixalotriton, Parvimolge, and Lineatriton. (See comment under Parvimolge.) In the tribe Bolitoglossini of Vieites, Román, Wake, and Wake, 2011, Mol. Phylogenet. Evol., 59: 633. Pyron and Wiens, 2011, Mol. Phylogenet. Evol., 61: 543-583, in their study of Genbank sequences, confirmed the paraphyly of Pseudoeurycea with respect to Ixalotriton (albeit with a low confidence measure) and Lineatriton, although they explicitly (p. 581) embraced a paraphyletic Pseudoeurycea and recognized both Ixalotriton and (the polyphyletic) Lineatriton as genera.

Contained taxa

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