Bolitoglossa occidentalis Taylor, 1941, Univ. Kansas Sci. Bull., 27: 145. Holotype: USNM 111085, by original designation. Type locality: "La Esperanza [near Escuintla], Chiapas, Mexico, elevation 500 feet".
Bolitoglossa bilineata Lynch and Smith, 1966, Trans. Kansas Acad. Sci., 69: 59. Holotype: UIMNH 56162, by original designation. Type locality: "Sierra Madre north of Zanatepec, Oaxaca, Mexico". Secondary homonym of Bolitoglossa bilineata Duméril, Bibron, and Duméril, 1854, Erp. Gen., 9: 91 (= Eurycea bislineata bislineata). Synonymy by Wake and Brame, 1969, Contrib. Sci. Nat. Hist. Mus. Los Angeles Co., 175: 28.
Bolitoglossa (Nanotriton) occidentalis — Parra-Olea, García-París, and Wake, 2004, Biol. J. Linn. Soc., 81: 335.
Southern Banana Salamander (Liner, 1994, Herpetol. Circ., 23: 10; Frank and Ramus, 1995, Compl. Guide Scient. Common Names Amph. Rept. World: 30; Liner and Casas-Andreu, 2008, Herpetol. Circ., 38: 29).
Pacific slopes of southeastern Oaxaca and Chiapas, Mexico, southern Guatemala; also on the Atlantic versant in west-central Chiapas, Mexico and west-central Honduras (a single locality in Comayagua).
In the Bolitoglossa rufescens group, which now constitutes part of the subgenus Nanotriton according to Parra-Olea, García-París, and Wake, 2004, Biol. J. Linn. Soc., 81: 336. See account by McCranie and Wilson, 2002, Amph. Honduras: 124-126, who discuss literature and evidence supporting the existence of multiple species under this name. Raffaëlli, 2007, Les Urodèles du Monde: 247, provided a brief account, photograph, and map. McCranie, 2007, Herpetol. Rev., 38: 36, summarized the departmental distribution in Honduras. Campbell, Smith, Streicher, Acevedo, and Brodie, 2010, Misc. Publ. Mus. Zool. Univ. Michigan, 200: 40, confirmed the distinctivenes of this species from Bolitoglossa rufescens and named species previously confused with this duo.
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