Please look in Eschmeyer's Catalog of Fishes for authorships of sections, Families of Fishes (all), and related information.

Species in the family or subfamily Arapaimidae: [ 13 ] records

adansoni, Heterotis Valenciennes [A.] in Cuvier & Valenciennes 1847:478 [Histoire naturelle des poissons v. 19; ref. 4883] Senegal; Niger. Predated by Sudis adansonii Cuvier 1829. •Synonym of Heterotis niloticus (Cuvier 1829). Current status: Synonym of Heterotis niloticus (Cuvier 1829). Arapaimidae. Habitat: freshwater.

adansonii, Sudis Cuvier [G.] 1829:328 [Le Règne Animal (Edition 2) v. 2; ref. 995] Senegal River, Senegal. Lectotype: MNHN 0000-3608. Paralectotypes: Rüppell specimen (1). Type catalog: Bertin 1940:272 [ref. 293]. Bertin and authors regard MNHN 3608 as holotype; a Rüppell specimen is also mentioned so MNHN was designated lectotype by Eschmeyer 1998:39 [ref. 23416]. •Synonym of Heterotis niloticus (Cuvier 1829) -- (Daget 1984:57 [ref. 6170]). Current status: Synonym of Heterotis niloticus (Cuvier 1829). Arapaimidae. Habitat: freshwater.

agassizii, Vastres Valenciennes [A.] in Cuvier & Valenciennes 1847:456 [Histoire naturelle des poissons v. 19; ref. 4883] Brazil. No types known. •Synonym of Arapaima gigas (Schinz 1822) -- (Ferraris in Reis et al. 2003:31 [ref. 27061]). •Valid as Arapaima agassizii Valenciennes 1847 -- (Stewart 2013:38 [ref. 32556], Stewart 2013:471 [ref. 32923]). Current status: Valid as Arapaima agassizii (Valenciennes 1847). Arapaimidae. Distribution: Brazil (known from holotype). Habitat: freshwater.

arapaima, Vastres Valenciennes [A.] In Cuvier & Valenciennes 1847:461 [Histoire naturelle des poissons v. 19; ref. 4883] Rupununi River, British Guiana, South America. Syntypes: BMNH 2009.1.19.1 (1, dried and stuffed) Based on the description of Sudis gigas in Schomburgk 1841:198, Pl. 11 [ref. 18707]. •Synonym of Arapaima gigas (Schinz 1822) -- (Ferraris in Reis et al. 2003:31 [ref. 27061]). •Valid as Arapaima arapaima (Valenciennes 1847) -- (Stewart 2013:38 [ref. 32556] dated 1947, Stewart 2013:471 [ref. 32923], Kottelat 2013:31 [ref. 32989], Taphorn et al. 2022:41 [ref. 41297] as cf. arapaima). Current status: Valid as Arapaima arapaima (Valenciennes 1847). Arapaimidae. Distribution: South America: Rupununi River basin (Guyana) endemic. Habitat: freshwater.

cuvieri, Vastres Valenciennes [A.] in Cuvier & Valenciennes 1847:441, Pls. 579-580 [not 545-546] [Histoire naturelle des poissons v. 19; ref. 4883] Pará state, Brazil. Holotype: MNHN A-8837. •Synonym of Arapaima gigas (Schinz 1822) -- (Ferraris in Reis et al. 2003:31 [ref. 27061], Stewart 2013:38 [ref. 32556]). Current status: Synonym of Arapaima gigas (Schinz 1822). Arapaimidae. Habitat: freshwater.

ehrenbergii, Heterotis Valenciennes [A.] in Cuvier & Valenciennes 1847:469, Pl. 584 [not 549] [Histoire naturelle des poissons v. 19; ref. 4883] Nile River. Syntypes: MNHN A-0824 (1, dry), B-2221 (1, dry). •Synonym of Heterotis niloticus (Cuvier 1829) -- (Daget 1984:58 [ref. 6170]). Current status: Synonym of Heterotis niloticus (Cuvier 1829). Arapaimidae. Habitat: freshwater.

gigas, Sudis Schinz [H. R.] (ex Cuvier) 1822:305 [Das Thierreich v. 2; ref. 3926] Brazil. Holotype: MNHN A-8837. Based on Cuvier, Regne Animal, pl. X. •Valid as Clupisudis gigas (Schinz 1822) -- (Daget 1968:1058 [ref. 26392] with author as Schinz in Cuvier). •Valid as Arapaima gigas (Schinz 1822) -- (Ortega & Vari 1986:6 [ref. 9708], Lundberg & Chernoff 1992:2 [ref. 25493], Ferraris in Reis et al. 2003:31 [ref. 27061], Kottelat 2013:31 [ref. 32989], Stewart 2013:38 [ref. 32556], Stewart 2013:471 [ref. 32923], Stewart 2013:474 [ref. 32923], Barriga Salazar 2014:104 [ref. 35745], Sarmiento et al. 2014:119, 188 [ref. 35004] as aff. gigas, Ramos et al. 2014:3 [ref. 35321], Reis et al. 2016:12, 15 [ref. 34496], DoNascimiento et al. 2017:33 [ref. 35633], Fadjar et al. 2019:3528 [ref. 37248], Careaga et al. 2020:77 [ref. 37774], Meza-Vargas et al. 2021:14 [ref. 39298], Jamandre 2023:171 [ref. 40455], Fricke et al. 2024:137 [ref. 41622]). Current status: Valid as Arapaima gigas (Schinz 1822). Arapaimidae. Distribution: South America: Amazon River basin: Brazil, Colombia, Ecuador, ?Guyana and Peru. Introduced in Mexico, Java (Indonesia) and the Philippines. Habitat: freshwater.

gigas, Sudis Cuvier [G.] 1829:328 [Le Règne Animal (Edition 2) v. 2; ref. 995] Brazil. Holotype (unique): MNHN A-8837 (dry). Type catalog: Bertin 1940:271 [ref. 293]. As "Sudis gigas, n. S. pirarucu, Spix, xvi." See Sudis gigas Schinz 1822. •Synonym of Arapaima gigas (Schinz 1822) -- (Neves 1998:33 [ref. 24993], Chen 2002:292 [ref. 26587]). 1°Homonym. Current status: Synonym of Arapaima gigas (Schinz 1822). Arapaimidae. Habitat: freshwater.

leptosoma, Arapaima Stewart [D. J.] 2013:471, Figs. 1, 2A [Copeia 2013 (no. 3); ref. 32923] Amazonas State, Solimões River about 200 km west Manaus and 21 km SW of confluence with Purus River, near Anori, approximately 3.75583°S. 61.67388°W, Brazil. Holotype (unique): INPA 16847. •Valid as Arapaima leptosoma Stewart 2013. Current status: Valid as Arapaima leptosoma Stewart 2013. Arapaimidae. Distribution: Solimões River drainage, Brazil. Habitat: freshwater.

mapae, Vastres Valenciennes [A.] in Cuvier & Valenciennes 1847:449, Pls. 581-582 [not 547-548] [Histoire naturelle des poissons v. 19; ref. 4883] [Lago Mapa] now Lago do Amapá, Amapá State, Brazil. Holotype: MNHN A-8836 (dried and stuffed). Type catalog: Bertin 1940:271 [ref. 293]. •Synonym of Arapaima gigas (Schinz 1822) -- (Ferraris in Reis et al. 2003:31 [ref. 27061]). •Valid as Arapaima mapae (Valenciennes 1847) -- (Stewart 2013:39 [ref. 32556], Stewart 2013:471 [ref. 32923]). Current status: Valid as Arapaima mapae (Valenciennes 1847). Arapaimidae. Distribution: Brazil (known from holotype). Habitat: freshwater.

niloticus, Sudis Cuvier [G.] (ex Ehrenberg) 1829:328 [Le Règne Animal (Edition 2) v. 2; ref. 995] Nile River. Presumed holotype: ZMB 3935. •Valid as Heterotis niloticus (Cuvier 1829) -- (Daget 1984:57 [ref. 6170], Lévêque et al. 1989:114 [ref. 26480], Paugy & Bénech 1989:299 [ref. 26478], Paugy in Lévêque et al. 1990:114 [ref. 21589], Lundberg & Chernoff 1992:2 [ref. 25493], Poll & Gosse 1995:97 [ref. 24781], Seegers et al. 2003:28 [ref. 28087], Dankwa et al. 1999:13 [ref. 28023], Neumann et al. 2016:303 [ref. 35036], Fricke et al. 2018:28 [ref. 35805], Fermon et al. 2022:122 [ref. 39448]). Current status: Valid as Heterotis niloticus (Cuvier 1829). Arapaimidae. Distribution: Africa: Nile River and West Africa. Introduced in Gabon and Madagascar. Habitat: freshwater.

niloticus, Sudis Rüppell [W. P. E. S.] 1829:10, Pl. 3 (fig. 2) [Beschreibung und Abbildung mehrerer neuer Fische, im Nil entdeckt 1829; ref. 22233] Nile River, Dongola Province, Sudan. Apparently predated by Cuvier 1829; date for Rüppell possibly after 1829. 1°Homonym. Current status: Synonym of Heterotis niloticus (Cuvier 1829). Arapaimidae. Habitat: freshwater.

pirarucu, Sudis Spix [J. B. von] & Agassiz [L.] 1829:31, Pl. 6 [Selecta genera et species piscium quos in itinere per Brasiliam; ref. 13] Not available, first published in the synonymy of Sudis gigas Cuvier; from Brazil. Name first mentioned in Cuvier 1829 [ref. 995] as name only. •In the synonymy of Arapaima gigas (Schinz 1822) -- (Ferraris in Reis et al. 2003:31 [ref. 27061]). Nomen Nudum. Current status: Synonym of Arapaima gigas (Schinz 1822). Arapaimidae.