Acestrorhynchus, Eigenmann, Kennedy, 1903

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 : 11-14

ACESTRORHYNCHUS Eigenmann, Kennedy, 1903

M Toledo-Piza

Xiphorhynchus Agassiz , in Spix, Agassiz, 1829:76. Type species: Salmo falcatus Bloch, 1794 . Type by subsequent designation by Jordan, 1917:132. Gender: Masculine. Additional comments: Originally proposed as a subgenus of Hydrocyon . Preoccupied by Xiphorhynchus Swainson, 1827 , in Aves.

Xiphorhamphus Müller, Troschel, 1844:92 . Type species: Salmo falcatus Bloch, 1794 . Type by being a replacement name. Gender: Masculine. Additional comments: Replacement for Xiphorhynchus Agassiz, 1829 . Preoccupied by Xiphorhamphus Blyth, 1843 , in Aves.

Acestrorhynchus Eigenmann, Kennedy, 1903:527 . Type species: Salmo falcatus Bloch, 1794 . Type by being a replacement name. Gender: Masculine. Additional comments: Replacement for Xiphorhamphus Müller, Troschel.

Sphyraenocharax Fowler, 1907:460 . Type species: Xiphorhamphus abbreviatus Cope, 1878 . Type by original designation. Gender: Masculine.

Acestrorhynchus abbreviatus (Cope, 1878)

Xiphorhamphus abbreviatus Cope, 1878:687 . Type locality: Peruvian Amazon. [In the description Cope (1878) mentioned collections of 1873 (larger part originated from Nauta) and 1877 (partly obtained near Pebas). The year 1877 appears on the label of lectotype (ANSP 21532)]. Lectotype: ANSP 21532. [Designated by Fowler (1907:461, fig. 49). Treated as holotype by Böhlke (1984:42)].

Distribution: 316, 317, 318a, 321, 319a (Menezes, 1992).

Remarks: Species recorded for the Peruvian Amazon but distributional limits are difficult to define due to taxonomic uncertainty (Paradeda, 2015).

Acestrorhynchus altus Menezes, 1969

Acestrorhynchus altus Menezes, 1969:52 , 118, fig. 38. Type locality: Rio Arari in Cachoeira do Arari , Ilha de Marajó, Pará. [ Brazil]. Holotype: MCZ 45256 .

Distribution: 323 (Menezes, 1969; Menezes, 1992).

Remarks: Species recorded for the Lower Amazon Basin but distributional limits are difficult to define due to taxonomic uncertainty (Paradeda, 2015).

Acestrorhynchus britskii Menezes, 1969

Acestrorhynchus britskii Menezes, 1969:58 , 118, fig. 42. Type locality: Represa de Três Marias , Rio São Francisco basin in Minas Gerais. [ Brazil]. Holotype: MZUSP 4406 .

Distribution: 327 (Menezes, 1969; Menezes, Gery, 1983).

Acestrorhynchus falcatus (Bloch, 1794)

Salmo falcatus Bloch, 1794:120 , Pl. 385. Type locality: Suriname. [ In the original description Bloch (1794) mentioned he received the fish from the Governor of Suriname]. Syntypes: ZMB 3613 (2). [See Paepke (1999) and Zarske (2012b:339)] for information on types].

Salmo pulverulentus Linnaeus, 1758:312 . Type locality: America. Holotype: NRM 7249. Name mentioned in Lacepéde (1803:274), but apparently never used as a valid name. Included in the synonymy of Acestrorhynchus falcatus (Bloch, 1794) in Menezes (2003).

Xiphorhamphus ferox Günther, 1863:443 . Type locality: Essequibo, Guiana. [ Guyana]. Syntypes: BMNH 1964.1.21.39–40 (2).

Acestrorhynchus falcatus varius Menezes, 1969:40 , fig. 25. Type locality: Cachimbo , Pará, Tapajós River basin. [ Brazil]. Holotype: MZUSP 4560 .

Distribution: 308, 309, 310, 311, 314, 316, 317, 318, 319, 320, 321, 322, 323, 324, 325, 343 (Menezes, 1969; Menezes, Gery, 1983; López-Fernández, Winemiller, 2003; Toledo-Piza et al., 2013; Paradeda, 2015).

Acestrorhynchus falcirostris (Cuvier, 1819)

Hydrocyon falcirostris Cuvier, 1819:361 , Pl. 27 (fig. 2). Type locality: Brésil. [ Brazil]. Holotype: MNHN A–8604 (poor condition).

Distribution: 307, 310, 311, 313, 315, 314, 316, 317, 318, 321, 322, 323, 324 (Menezes, 1969; Menezes, Gery, 1983; Toledo-Piza et al., 2013).

Acestrorhynchus grandoculis Menezes, Géry, 1983

Acestrorhynchus grandoculis Menezes, Géry, 1983:582 , fig. 8. Type locality: Mouth of Rio Urubaxi in Rio Negro, State of Amazonas, Brazil. Holotype: MZUSP 25863 .

Distribution: 307, 314, 316, 321 (Menezes, Gery, 1983; Toledo-Piza, Menezes, 1996; Toledo-Piza et al., 2013).

Acestrorhynchus heterolepis (Cope, 1878)

Xiphorhamphus heterolepis Cope, 1878:687 . Type locality: Peruvian Amazon. [In the description Cope (1878) mentioned collections of 1873 (larger part originated from Nauta) and 1877 (partly obtained near Pebas)]. Lectotype: ANSP 21246. [Designated by Fowler (1907:462, fig. 50). Treated as holotype by Böhlke (1984:48)].

Distribution: 307, 310, 314, 316, 319, 321, 325* (Menezes, 1969; Toledo-Piza et al., 2013; López-Fernández, Winemiller, 2003; Toledo-Piza, pers. obs.).

Acestrorhynchus isalineae Menezes, Géry, 1983

Acestrorhynchus isalineae Menezes, Géry, 1983:577 , figs. 5–6. Type locality: Tributary of Rio dos Marmelos ( Rio Madeira basin) 110 kilometers east of Humaitá along rodovia Transamazônica, State of Amazonas, Brazil. Holotype: MZUSP 25849 .

Distribution: 321 (Menezes, Gery, 1983; Toledo-Piza et al., 2013).

Acestrorhynchus lacustris (Lütken, 1875)

Xiphorhamphus lacustris Lütken, 1875c:136 [10]. Type locality: Lagoa Santa. [Minas Gerais State, Brazil]. Syntypes: ZMUC 185 (1) , 187–188 (2), 194 (1), 196 (1); MNHN 0000-9587 (1); SMNS 2042 (1) ; ZMB 9192 (1).

Distribution: 327, 344 (Menezes, 1969; Menezes, 1992).

Acestrorhynchus maculipinna Menezes, Géry, 1983

Acestrorhynchus maculipinna Menezes, Géry, 1983:579 , fig. 7. Type locality: Rio Preto da Eva , between Manaus and Itacoatiara, State of Amazonas, Brazil. Holotype: MZUSP 25861 .

Distribution: 316 (Menezes, Gery, 1983).

Acestrorhynchus microlepis (Jardine, 1841)

Hydrocyon microlepis Jardine , in Schomburgk, 1841:247. Type locality: Rios Negro and Branco as well as in the Essequibo. [Menezes (1969) restricted the type locality to the Essequibo River, Guyana]. No types known. [See Toledo-Piza, Menezes (1996) for information about types].

Acestrorhynchus cachorro Fowler, 1940a:274 , fig. 61. Type locality: Ucayali River basin, Boca Chica , Peru. Holotype: ANSP 68679 . [Holotype pictured in Toledo-Piza, Menezes (1996: fig. 8)].

Acestrorhynchus guianensis Menezes, 1969:70 , 120, fig. 54. Type locality: Botanic Garden , [British] Guyana (trenches in Georgetown with water from the Demerara River). Holotype: FMNH 74359 . [Holotype pictured in Toledo-Piza, Menezes (1996: fig. 7)].

Acestrorhynchus apurensis Toledo-Piza, Menezes, 1996:18 , fig. 10. Type locality: Venezuela, Modulo de la UNELLEZ, Estado Apure. [Río Apure drainage, Río Orinoco]. Holotype: MZUSP 48373 . Synonymy proposed by López-Fernández, Winemiller (2003).

Distribution: 307, 308, 311, 316,317, 318, 319, 320, 321, 322, 323, 324 (Toledo-Piza, Menezes 1996; Toledo-Piza et al., 2013; López-Fernández, Winemiller, 2003).

Acestrorhynchus minimus Menezes, 1969

Acestrorhynchus minimus Menezes, 1969:78 , 120, fig. 60. Type locality: Lago Jacaré , Rio Trombetas, Amazon River basin. [ Brazil]. Holotype: MZUSP 4608 .

Distribution: 307, 308, 314, 315, 316, 319, 321, 323 (Menezes, 1969; Toledo-Piza et al., 2013; López-Fernández, Winemiller, 2003).

Acestrorhynchus nasutus Eigenmann, 1912

Acestrorhynchus nasutus Eigenmann, 1912a:411 , Pl. 61 (fig. 4). Type locality: Rockstone. [ Guyana]. Holotype: FMNH 53475 .

Distribution: 307, 310, 314, 316, 320*, 323* (Menezes, 1969; Menezes, Gery, 1983; López-Fernández, Winemiller, 2003; Toledo-Piza, pers. obs.).

Acestrorhynchus pantaneiro Menezes, 1992

Acestrorhynchus pantaneiro Menezes, 1992:42 , fig. 1. Type locality: Rio Cuiabá , Volta Grande, município de Santo Antônio do Leverger , Mato Grosso (aproximadamente - 16°S, 56°W). [ Brazil]. Holotype: MZUSP 40256 .

Salmo 26-radiatus Larrañaga, 1923:388. Type locality: Uruguay. No types known. Appeared as Salmo denticulosus vel 26-radiatus and Salmo 26-radiatus in Devincenzi, 1925:312, 322, respectively and treated as synonym of Acestrorhynchus falcatus (Bloch, 1794) . Included as Salmo denticulosus vel 26-radiatus under Species inquirenda ( Characidae ) in Lima et al. (2003:159); Litz, Koerber (2014) equated it to Acestrorhynchus pantaneiro Menezes, 1992 . Question of priority over A. pantaneiro not addressed.

Salmo denticulosus Larrañaga, 1923:388 . Type locality: Uruguay. No types known. Appeared as Salmo denticulosus vel 26-radiatus and Salmo denticulosus in Devincenzi, 1925:312, 322, respectively and treated as synonym of Acestrorhynchus falcatus (Bloch, 1794) . Included as Salmo denticulosus vel 26-radiatus under species inquirenda ( Characidae ) in Lima et al (2003:159); Litz, Koerber (2014) equated it to Acestrorhynchus pantaneiro Menezes, 1992 . Question of priority over A. pantaneiro not addressed.

Distribution: 342, 343, 345 (Menezes, 1992; Toledo-Piza et al., 2013).

Remarks: Species recorded for Rio Paraguay basin, but distributional limits are difficult to define due to unclear taxonomic limits of species (Paradeda, 2015).