Rana pentadactyla Laurenti, 1768, Spec. Med. Exhib. Synops. Rept.: 32.
Rana gigas Spix, 1824, Animal. Nova Spec. Nov. Test. Ran. Brasil.: 25. Types: Not specifically stated but including animal figured on pl. 1 of the original publication; ZSM 89/1921 (now lost) according to Hoogmoed and Gruber, 1983, Spixiana, Suppl., 9: 355, and Glaw and Franzen, 2006, Spixiana, 29: 175. Type locality: "in locis paludosis fluminis Amazonum", Brazil. Synonymy by Peters, 1872, Monatsber. Preuss. Akad. Wiss. Berlin, 1872: 198, 225; Boulenger, 1882, Cat. Batr. Sal. Coll. Brit. Mus., Ed. 2, : 241; Heyer, 1979, Smithson. Contrib. Zool., 301: 26. Preoccupied by Rana gigas Wallbaum, 1784 (= Bufo marinus).
Rana coriacea Spix, 1824, Animal. Nova Spec. Nov. Test. Ran. Brasil.: 29. Holotype: Not specifically designated, but including animal figured on pl. 5, fig. 2 of the original publication; ZSM 2502/0, now lost, according to Hoogmoed and Gruber, 1983, Spixiana, Suppl., 9: 355, and Glaw and Franzen, 2006, Spixiana, 29: 175. Type locality: "aquis lacustribus fluvii Amazonum" = Amazon River, Brazil. Synonymy by Peters, 1872, Monatsber. Preuss. Akad. Wiss. Berlin, 1872: 205, 225; Heyer, 1979, Smithson. Contrib. Zool., 301: 26.
Rana pachypus bilineata Mayer, 1835, Analect. Vergl. Anat.: 24. Type(s): Deposition not stated, now presumed lost. Type locality: Not stated. Named as a synonym of Rana gigas Spix, 1824. Not addressed by Heyer, 2005, Arq. Zool., São Paulo, 37: 320: 322.
Doryphoros gigas - Mayer, 1835, Analect. Vergl. Anat.: 28, plate III, fig. 8.
Gnathophysa gigas - Cope, 1866, J. Acad. Nat. Sci. Philadelphia, Ser. 2, 6: 73.
Cystignathus pentadactylus - Peters, 1872, Monatsber. Preuss. Akad. Wiss. Berlin, 1872: 198.
Leptodactylus goliath Jiménez de la Espada, 1875, Vert. Viaje Pacif. Verif. 1862-1865: 57. Syntypes: MNCN (3 specimens; MNCN 328 designated lectotype by Heyer and Peters, 1971, Proc. Biol. Soc. Washington, 84: 167. Type localities: "Archidona (Oriente del Ecuador) . . . [and] Chinitambo, Sierra de Guacamayos (Or. Del Ecaudor)"; locality of lectotype given in error as "Quijos, Ecuador" by Heyer and Peters, 1971, Proc. Biol. Soc. Washington, 84: 167, in error according to González-Fernández, García-Díez, and San Segundo, 2009, Spixiana, München, 32: 273, who noted that the lectotype is from "Archidona (Oriente de Ecuador)" . Synonymy by Boulenger, 1882, Cat. Batr. Sal. Coll. Brit. Mus., Ed. 2, : 242; Heyer and Peters, 1971, Proc. Biol. Soc. Washington, 84: 167; Heyer, 1979, Smithson. Contrib. Zool., 301: 26.
Leptodactylus pentadactylus - Boulenger, 1882, Cat. Batr. Sal. Coll. Brit. Mus., Ed. 2: 241.
Leptodactylus pentadactylus - Nieden, 1923, Das Tierreich, 46: 472.
Leptodactylus macroblepharus Miranda-Ribeiro, 1926, Arq. Mus. Nac., Rio de Janeiro, 27: 144. Syntypes: MZUSP 377 (3 specimens), according to XXX. Type locality: "Manáos--Amazonas", Brazil. Synonymy by Heyer, 1974, Contrib. Sci. Nat. Hist. Mus. Los Angeles Co., 253: 43.
Leptodactylus pentadactylus pentadactylus - Müller, 1927, Abh. Senckenb. Naturforsch. Ges., 40: 276.
Leptodactylus (Pachypus) pentadactylus - Lutz, 1930, Mem. Oswaldo Cruz, Rio de Janeiro, 23: 1, 21.
Leptodactylus pentadactylus dengleri Melin, 1941, Göteborgs K. Vetensk. Vitterh. Samh. Handl., Ser. B, 1: 51. Holotype: NHMG 497 designated lectotype by Heyer, 2005, Arq. Zool., São Paulo, 37: 322. Type locality: "Roque, [San Martín,] Peru", noted by Heyer, 2005, Arq. Zool., São Paulo, 37: 322, to be at 06° 24' S, 76° 48' W. Synonymy by Heyer, 1979, Smithson. Contrib. Zool., 301: 26. See also comment by Taylor, 1952, Univ. Kansas Sci. Bull., 35: 649.
Leptodactylus pentadactylus rubidoides Andersson, 1945, Ark. Zool., 37: 47. Syntypes: NHRM (2 specimens); Heyer, 2005, Arq. Zool., São Paulo, 37: 322, considered NHRM 1928 to be holotype. Type locality: "Rio Pastaza", eastern Ecuador. Synonymy by Heyer and Peters, 1971, Proc. Biol. Soc. Washington, 84: 168; Heyer, 1979, Smithson. Contrib. Zool., 301: 26.