Institute for Biodiversity Science and Sustainability
Online Version, Updated 3 September 2019

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Eschmeyer's Catalog of Fishes
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Hydrocynus (subgenus of Salmo) Cuvier [G.] 1816:167 Masc. Hydrocynus lucius Cuvier 1816. Type by subsequent designation. Needs research on type species and possible action by the ICZN. Type often given as Hydrocyon forskahlii Cuvier 1819, but that was not an originally included species in 1816. Type apparently designated first by Eigenmann 1910:446 [ref. 1224] as lucius (see Travassos 1951 [ref. 4450]), and not by Agassiz in Spix & Agassiz 1829:76 [ref. 13] or by Cuvier 1819 [ref. 1017]. Hydrocion Duméril 1856 and Hydrocinus Boulenger (ex Cuvier) 1909 are unjustified emendations or incorrect subsequent spellings. Type apparently not H. forskahlii Cuvier 1819. Hydrocionichthys Travassos 1952 is an objective synonym if the type of Hydrocynus is forskahlii. But the type species, if correctly H. lucius, is a South American species placed by current authors in the genus Boulengerella in a different family. An African type species for Hydrocynus, such as forskahlii, would stabilize current usage. See Brewster 1986:164 [ref. 8104]. •Valid as an African genus Hydrocynus Cuvier 1816 -- (Géry 1977:54 [ref. 1597], Paugy 1984:169 [ref. 6183], Brewster 1986:163 [ref. 8104], Paugy & Guégan 1989:64 [ref. 26479] with date as 1819, Lévêque et al. 1989:116 [ref. 26480], Paugy & Bénech 1989:300 [ref. 26478], Paugy in Lévêque et al. 1990:198 [ref. 21589], Paugy et al. 1990:337 [ref. 26477], Poll & Gosse 1995:141 [ref. 24781], Seegers 1996:165 [ref. 23725], Dankwa et al. 1999:18 [ref. 28023], Zanata & Vari 2005;117 [ref. 28816], Ibala Zamba et al. 2007:1213 [ref. 29470], Paugy & Schaefer 2007:353 [ref. 30022], Mirande 2009:6 [ref. 30267] in Alestidae, Mirande 2010:474 [ref. 31006], Oliveira et al. 2011:10 [ref. 31685], Marshall 2011:138 [ref. 31755], Arroyave & Stiassny 2011:394 [ref. 34108]). Current status: Valid as Hydrocynus Cuvier 1816. Alestidae.