Hydrocynus, Cuvier, 1816

Toledo-Piza, Mônica, Baena, Eduardo G., Dagosta, Fernando C. P., Menezes, Naércio A., Ândrade, Marcelo, Benini, Ricardo C., Bertaco, Vinicius A., Birindelli, José Luís O., Boden, Gert, Buckup, Paulo A., Camelier, Priscila, Carvalho, Fernando R., Castro, Ricardo M. C., Chuctaya, Junior, Decru, Eva, Derijst, Eddy, Dillman, Casey B., Ferreira, Katiane M., Merxem, Dimitri G., Giovannetti, Victor, Hirschmann, Alice, Jégu, Michel, Jerep, Fernando C., Langeani, Francisco, Lima, Flávio C. T., Lucena, Carlos A. S., Lucena, Zilda Margarete S., Malabarba, Luiz R., Malabarba, Maria Cláudia S. L., Marinho, Manoela M. F., Mathubara, Kleber, Mattox, George M. T., Melo, Bruno F., Moelants, Tuur, Moreira, Cristiano R., Musschoot, Tobias, Netto-Ferreira, André L., Ota, Rafaela P., T. Oyakawa, Osvaldo, Pavanelli, Carla S., Reis, Roberto E., Santos, Osmar, Serra, Jane Piton, Silva, Gabriel S. C., Silva-Oliveira, Cárlison, Souza-Lima, Rosana, Vari, Richard P. & Zanata, Angela M., 2024, Checklist of the species of the Order Characiformes (Teleostei: Ostariophysi), Neotropical Ichthyology (e 230086) 22 (1), pp. 1-548 : 35-37

HYDROCYNUS Cuvier, 1816

G Boden

Hydrocynus Cuvier, 1816:167 . Type species: Hydrocynus forskahlii Cuvier, 1819 . Type by subsequent designation by Agassiz in Spix, Agassiz (1829). Gender: Masculine. Additional comments: Some authors place Hydrocynus lucius Cuvier, 1816 as type species of Hydrocynus . This is based on a subsequent designation by Eigenmann (1910) and the thought that Hydrocynus forskahlii Cuvier, 1819 was originally not included in the genus description. Hydrocynus forskahlii was described for the misidentification of Cyprinus dentex Linnaeus, 1758 (= Salmo dentex Hasselquist, 1762 , unavailable name) by Forsskahl (1775), and known by the vernacular name ‘roschal’. This ‘roschal’ was included in the species list of Hydrocynus by Cuvier (1816). Moreover, Hydrocynus lucius , now known as Boulengerella lucius , is a South American species. Here we follow the decision to use Hydrocynus forskahlii as type species as first designated by Agassiz in Spix, Agassiz (1829), a species with distribution in Africa.

Hydrocyon Cuvier, 1819:353 . Gender: Masculine. Additional comments: Not intended as a new genus description, refers to the description of Hydrocynus Cuvier, 1816 , and can be regarded as an incorrect subsequent spelling.

Hydrocionichthys Travassos, 1952:142 . Type species: Hydrocynus forskahlii Cuvier, 1819 . Type by original designation. Gender: Masculine.

Hydrocynus brevis Günther, 1864

Hydrocyon brevis Günther, 1864:351 . Type locality: Chartoum , Upper Nile. [ Sudan]. Lectotype: BMNH 1862.6 .17.94. [Designated by Brewster (1986)].

Hydrocyon somonorum Daget, 1954:116 , fig. 34. Type locality: Kolenzé, Diafarabé et Dia bozo, Niger supérieur. [ Mali]. Syntypes: MNHN (8) (lost). [The types of Hydrocyon somonorum are no longer extant (Brewster, 1986)].

Distribution: 505, 507, 508, 509, 516, 520, 522, 523, 524 (Paugy, Guégan, 1989; Paugy, 2003).

Hydrocynus forskahlii Cuvier, 1819

Hydrocyon forskahlii Cuvier, 1819:354 , Pl. 28 (fig. 1). Type locality: Nil , Egypte. [Nile, Egypt]. Holotype: MNHN 0000-1691.

Salmo roschal Walbaum, 1792:81 . Type locality: Nilus [Nile]. No types known. Reversal of priority in favor of Hydrocyon forskahlii Cuvier, 1819 discussed by Fricke, 2008:18.

Distribution: 505, 506, 507, 508, 509, 510, 511, 512, 514, 515, 516, 517, 518, 519, 520, 522, 523, 524, 525, 530, 533, 534, 535, 536, 548, 549, 550 (Ibala Zamba et al., 2019; Paugy, Guégan, 1989; Paugy, 2003; Paugy, Schaefer, 2007; Seegers et al., 2003).

Hydrocynus goliath Boulenger, 1898

Hydrocyon goliath Boulenger, 1898b:23 , Pl. 11. Type locality: Bief de Manyanga , Léopoldville et Umangi (Haut-Congo), Congo. [Lectotype from: “Manyanga, Belgian Congo ”. Democratic Republic of the Congo]. Lectotype: BMNH 1898.11 .17.4. [Designated by Brewster (1986)].

Hydrocyon vittatus Boulenger, 1898b:24 , Pl. 10 (fig. 2). Type locality: Umangi, Upoto et Manyanga. [ Democratic Republic of the Congo]. Syntypes: BMNH 1898.11.17.5 (1); RMCA 149 (1); RMCA 165 (1). Preoccupied by Hydrocinus vittatus Castelnau, 1861 , replaced by Hydrocyon vittiger Boulenger, 1907 .

Hydrocyon vittiger Boulenger, 1907c:106 . Type locality: Umangi , Upoto et Manyanga. [ Democratic Republic of the Congo]. Syntypes: BMNH 1898.11 . 17.5 (1); RMCA 149 (1) ; RMCA 165 (1) . Replacement for Hydrocyon vittatus Boulenger, 1898 .

Distribution: 535, 537, 538, 539, 540, 542, 546, 547, 548, 549, 550 (Brewster, 1986; Banister, Bailey, 1979; Matthes, 1964b; Coulter, 1966).

Hydrocynus tanzaniae Brewster, 1986

Hydrocynus tanzaniae Brewster, 1986:199 , fig. 30. Type locality: Lower Ruvu River , Tanzania. Holotype: BMNH 1976.10 .21.130.

Distribution: 564 (Brewster, 1986).

Hydrocynus vittatus Castelnau, 1861

Hydrocinus vittatus Castelnau, 1861:65 . Type locality: lac N’gami, Afrique australe . [Type locality of neotype is “ Kavango: Okavango River, Rundu 17°54’S, 19°46’E ”. Namibia]. Neotype: SAIAB [formerly RUSI] 22228. [The original type specimens are lost (Boulenger, 1907c); neotype designated by Paugy, Guégan (1989)].

Hydrocyon lineatus Schlegel , in Bleeker , 1863:125. Type locality: Guinea (Ashantee). [The locality “ Guinea ” as used in the original description refers probably to “Gulf of Guinea”; “Ashantee” was the name of an old kingdom located in present Ghana]. Holotype: RMNH 3249 .

Distribution: 505, 506, 507, 508, 509, 515, 516, 517, 518, 520, 522, 523, 525, 530, 535, 537, 538, 539, 540, 541, 542, 543, 544, 545, 546, 548, 549, 550, 555, 556, 558, 559, 560, 561, 562, 563, 564, 565, 569, 570, 576 (Paugy, Guégan, 1989; Skelton, 2001; Paugy, 2003; Paugy, Schaefer, 2007; Seegers et al., 2003; Seegers, 1996; De Vos et al., 2001; Van Steenberge et al., 2014; Mbimbi Mayi Munene, Stiassny, 2011; Banister, Bailey, 1979; Marshall, 2011; Kisekelwa et al., 2020).