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

Species in the genus Hoplisoma: [ 107 ] records

acrensis, Corydoras Nijssen [H.] 1972:416, Fig. 1 [Netherlands Journal of Zoology v. 21 (no. 4); ref. 673] Furo do Lago São Francisco, 7°40'S, 72°39'W, tributary at left bank of Rio Juruá, Acre State, Brazil. Holotype (unique): IRSNB 505. Type catalog: Walschaerts 1987:17 [ref. 20755], Ferraris 2007:112 [ref. 29155]. •Valid as Corydoras acrensis Nijssen 1972 -- (Nijssen & Isbrücker 1980:202 [ref. 6910], Burgess 1989:365 [ref. 12860], Isbrücker 2001:219 [ref. 26805], Reis in Reis et al. 2003:294 [ref. 27061], Ferraris 2007:112 [ref. 29155], Lima & Sazima 2017:30 [ref. 35111]). •Valid as Hoplisoma acrense (Nijssen 1972) -- (Dias et al. 2024:26 [ref. 41219] as acrensis). Current status: Valid as Hoplisoma acrense (Nijssen 1972). Callichthyidae: Corydoradinae. Distribution: South America: Juruá River basin, Brazil. Habitat: freshwater.

adolfoi, Corydoras Burgess [W. E.] 1982:15, 2 Figs. [Tropical Fish Hobbyist v. 30 (no. 7); ref. 8505] Small tributary of the upper Rio Negro on the equator near São Gabriel da Cachoeira, Brazil. Holotype: MZUSP 26641. Paratypes: MZUSP [ex USNM 235310] (1), USNM 235310 (3, now 2), ZMA (3). Type catalog: Ferraris & Vari 1992:12 [ref. 19771], Ferraris 2007:112 [ref. 29155] •Valid as Corydoras adolfoi Burgess 1982 -- (Burgess 1989:365 [ref. 12860], Isbrücker 2001:219 [ref. 26805], Reis in Reis et al. 2003:294 [ref. 27061], Britto & Lima 2003:89 [ref. 27314], Ferraris 2007:112 [ref. 29155], Tencatt & Pavanelli 2015:294 [ref. 35434], Tencatt & Ohara 2016:[12] [ref. 34353], Tencatt & Evers 2016:[11] [ref. 34387], Tencatt et al. 2016:[16] [ref. 34388]). •Valid as Hoplisoma adolfoi (Burgess 1982) -- (Dias et al. 2024:26 [ref. 41219]). Current status: Valid as Hoplisoma adolfoi (Burgess 1982). Callichthyidae: Corydoradinae. Distribution: South America: Negro River basin, Brazil. Habitat: freshwater.

albolineatus, Corydoras Knaack [J.] 2004:73, Figs. 13-18 [Zoologische Abhandlungen; Staatliches Museum für Tierkunde in Dresden v. 54; ref. 27989] Río Paragua, northwestern bank, river mouth area, río Itenez system, Raum Piso firme, Provincia J.M. Velasco, Departamento Santa Cruz, Bolivia., 13°31.989'S, 61°50.295'W. Holotype: MTD F 28470. Paratypes: CAS uncat. (2); CIRA-UTB 1082 (2); CJK uncat. (312), uncat. (104), uncat. (37); MTD F 28471 (1); ZMA 123.1000.736 (1), 123.1000.737 (1); ZMB 33532 (1), 33533 (1). Type catalog: Ferraris 2007:112 [ref. 29155]. •Valid as Corydoras albolineatus Knaack 2004 -- (Ferraris 2007:112 [ref. 29155], Espíndola et al. 2014:26 [ref. 33269], Sarmiento et al. 2014:190 [ref. 35004], Tencatt & Ohara 2016:[12] [ref. 34353]). •Valid as Hoplisoma albolineatum (Knaack 2004) -- (Dias et al. 2024:26 [ref. 41219]). •Valid as 'Hoplisoma' albolineatum (Knaack 2004) -- (Alonso et al. 2024:12 [ref. 41682]). Current status: Valid as Hoplisoma albolineatum (Knaack 2004). Callichthyidae: Corydoradinae. Distribution: South America: Itenez River drainage, western Amazon basin, Bolivia. Habitat: freshwater.

amphibelus, Corydoras Cope [E. D.] 1872:282 [Proceedings of the Academy of Natural Sciences of Philadelphia v. 23; ref. 921] Tributaries of Río Ambyiacu, near Pebas, about 3°10'S, 71°50'W, Peru. Holotype (unique): ANSP 8290. Type catalog: Böhlke 1984:31 [ref. 13621], Ferraris 2007:113 [ref. 29155]. •Valid as Corydoras amphibelus Cope 1872 -- (Nijssen & Isbrücker 1980:195 [ref. 6910], Ortega & Vari 1986:16 [ref. 9708], Burgess 1989:365 [ref. 12860], Isbrücker 2001:220 [ref. 26805], Reis in Reis et al. 2003:294 [ref. 27061], Ferraris 2007:113 [ref. 29155], Barriga Salazar 2014:111 [ref. 35745], Meza-Vargas et al. 2021:25 [ref. 39298]). •Valid as Hoplisoma amphibelum (Cope 1872) -- (Dias et al. 2024:26 [ref. 41219]). Current status: Valid as Hoplisoma amphibelum (Cope 1872). Callichthyidae: Corydoradinae. Distribution: South America: upper Amazon River basin (Peru and Ecuador). Habitat: freshwater.

apiaka, Corydoras Espíndola [V. C.], Spencer [M. R. S.], Rocha [L. R.] & Britto [M. R.] 2014:26, Figs. 1-2 [Papéis Avulsos de Zoologia, Museu de Zoologia da Universidade de São Paulo v. 54 (no. 3); ref. 33269] Ribeirão Oito de Julho, a tributary of the right margin of rio Arinos, Rio Tapajós basin, road MT‑338 between Tapurah-Nova Paraná, Porto dos Gaúchos, Mato Grosso, 11°41’44"S, 57°06’42"W, Brazil. Holotype: MNRJ 40720. Paratypes: MNRJ, MZUSP. •Valid as Corydoras apiaka Espíndola, Spencer, Rocha & Britto 2014 -- (Tencatt et al. 2022:34 [ref. 39741]). •Valid as Hoplisoma apiaka (Espíndola, Spencer, Rocha & Britto 2014) -- (Dias et al. 2024:26 [ref. 41219]). Current status: Valid as Hoplisoma apiaka (Espíndola, Spencer, Rocha & Britto 2014). Callichthyidae: Corydoradinae. Distribution: South America: Rio Tapajós basin, Brazil. Habitat: freshwater.

araguaiaensis, Corydoras Sands [D. D.] 1990:no page number, Fig. [Catfishes of the World Suppl.; ref. 21579] Rio Araguaia, Brazil. Holotype: RMNH. Paratypes: ZMA 119218 (32). Type catalog: Ferraris 2007:113 [ref. 29155]. •Valid as Corydoras araguaiaensis Sands 1990 -- (Burgess & Finley 1996:168 [ref. 22901], Isbrücker 2001:220 [ref. 26805], Reis in Reis et al. 2003:295 [ref. 27061], Shimabukuro-Dias et al. 2004:141 [ref. 27796], Ferraris 2007:113 [ref. 29155], Espíndola et al. 2014:26 [ref. 33269], Tencatt & Britto 2016:[1] [ref. 34336], Tencatt & Ohara 2016:[12] [ref. 34353], Tencatt & Evers 2016:[11] [ref. 34387], Tencatt et al. 2016:[16] [ref. 34388], Lima & Sazima 2017:30 [ref. 35111]). •Valid as Hoplisoma araguaiaense (Sands 1990) -- (Dias et al. 2024:26 [ref. 41219] as araguaiaensis). Current status: Valid as Hoplisoma araguaiaense (Sands 1990). Callichthyidae: Corydoradinae. Distribution: South America: Araguaia River basin, Brazil. Habitat: freshwater.

argentina, Corydoras punctatus var. Steindachner [F.] 1879:26 [Denkschriften der Kaiserlichen Akademie der Wissenschaften in Wien, Mathematisch-Naturwissenschaftliche Classe. v. 41; ref. 4228] Not available, name only in synonymy of Corydoras marmoratus. •In the synonymy of Corydoras paleatus (Jenyns 1842) -- (Nijssen & Isbrücker 1980:204 [ref. 6910], Reis in Reis et al. 2003:301 [ref. 27061], Litz & Koerber 2014:23 [ref. 33622], Mirande & Koerber 2015:40 [ref. 35117]). •Not in the synonymy of Corydoras paleatus (Jenyns 1842) -- (Tencatt et al. 2016:[9] [ref. 34388]). •In the synonymy of Hoplisoma paleatum (Jenyns 1842). Nomen Nudum. Current status: Uncertain as Hoplisoma paleatum (Jenyns 1842). Callichthyidae: Corydoradinae.

armatus, Callichthys Günther [A.] 1868:476 [Annals and Magazine of Natural History (Series 4) v. 1 (no. 6) (art. 56); ref. 1992] Río Huallaga, Amazon system, Peru. Lectotype: BMNH 1867.6.13.51. Paralectotypes: BMNH 1867.6.13.52 (1), 1867.6.13.30 (1); ZMA 109952 [ex BMNH 1867.6.13.31] (1). Type catalog: Nijssen et al. 1982:40 [ref. 19236], Ferraris 2007:113 [ref. 29155]. Also appeared in Günther 1868:230, Fig. 1 [ref. 5756]. Lectotype selected by Nijssen & Isbrücker 1908:194 [ref. 6910]. •Valid as Corydoras armatus (Günther 1868) -- (Ortega & Vari 1986:16 [ref. 9708], Burgess 1989:365 [ref. 12860], Lasso et al. 2001:98 [ref. 25928], Isbrücker 2001:221 [ref. 26805], Reis in Reis et al. 2003:295 [ref. 27061], Britto & Lima 2003:89 [ref. 27314], Ferraris 2007:113 [ref. 29155], Barriga Salazar 2014:111 [ref. 35745], Sarmiento et al. 2014:190 [ref. 35004], Tencatt & Ohara 2016:[12] [ref. 34353], Tencatt et al. 2016:[16] [ref. 34388], see DoNascimiento et al. 2017:[16] [ref. 35679], Bogotá-Gregory et al. 2020:1401 [ref. 37878], Careaga et al. 2020:77 [ref. 37774], Meza-Vargas et al. 2021:25 [ref. 39298]). •Valid as Hoplisoma armatum (Günther 1868) -- (Dias et al. 2024:26 [ref. 41219]). Current status: Valid as Hoplisoma armatum (Günther 1868). Callichthyidae: Corydoradinae. Distribution: South America: upper Amazon River basin (Ecuador, Peru, Colombia and Bolivia). Habitat: freshwater.

atropersonatus, Corydoras Weitzman [S. H.] & Nijssen [H.] 1970:123, Figs. 2, 6b [Beaufortia v. 18 (no. 233); ref. 7481] Río Conambo at mouth of River Shione, Río Tigre system, about 2°00'S, 76°30'W, Pastaza State, Ecuador. Holotype: USNM 204359. Paratypes: BMNH 1970.4.17.1-2 (2); EPN 4429-4436 (3); USNM 204360 (5); ZMA 110382 (2), 110385-86 (3, 1). Type catalog: Nijssen et al. 1982:42 [ref. 19236], Ferraris & Vari 1992:13 [ref. 19771], Ferraris 2007:113 [ref. 29155]. •Valid as Corydoras atropersonatus Weitzman & Nijssen 1970 -- (Nijssen & Isbrücker 1980:201 [ref. 6910], Burgess 1989:365 [ref. 12860], Grant 1998:43 [ref. 23454], Isbrücker 2001:221 [ref. 26805], Reis in Reis et al. 2003:295 [ref. 27061], Britto & Lima 2003:89 [ref. 27314], Ferraris 2007:113 [ref. 29155], Barriga Salazar 2014:111 [ref. 35745], Lima & Britto 2020:528 [ref. 37324], Meza-Vargas et al. 2021:25 [ref. 39298]). •Valid as Hoplisoma atropersonatum (Weitzman & Nijssen 1970) -- (Dias et al. 2024:26 [ref. 41219]). Current status: Valid as Hoplisoma atropersonatum (Weitzman & Nijssen 1970). Callichthyidae: Corydoradinae. Distribution: South America: upper Amazon River basin (Ecuador and Peru). Habitat: freshwater.

axelrodi, Corydoras Rössel [F.] 1962:335, Figs. 1-3 [Senckenbergiana Biologica v. 43 (no. 5); ref. 6417] Río Meta, Colombia. Holotype: SMF 5700. Paratypes: SMF 5701-02 (2). Type catalog: Ferraris 2007:113 [ref. 29155]. Also appeared as new in Rössel 1964:78 [ref. 34686]. •Valid as Corydoras axelrodi Rössel 1962 -- (Ferraris 2007:113 [ref. 29155], DoNascimiento et al. 2017:72 [ref. 35633], Urbano-Bonilla et al. 2018:77 [ref. 35773], Cortés Hernández et al. 2023:456 [ref. 40760]). •Valid as Hoplisoma axelrodi (Rössel 1962) -- (Dias et al. 2024:26 [ref. 41219]). Current status: Valid as Hoplisoma axelrodi (Rössel 1962). Callichthyidae: Corydoradinae. Distribution: South America: Meta River basin (Colombia). Habitat: freshwater.

baderi, Corydoras Geisler [R.] 1969:354, Figs. 1-2 [Senckenbergiana Biologica v. 50 (no. 5/6); ref. 7738] Rio Paru do Oreste, 2°12'N, 55°59'W, Pará State, northern Brazil. Holotype: SMF 9651. Paratypes: SMF 9652-53 (1, 1), 9786-87 (2), 9788-89 (1, 1); ?MTD F 27190 (1), F 27181-97 (7). Type catalog: Zarske 2003:24 [ref. 27474] with MTD specimens as paratypes, Ferraris 2007:113 [ref. 29155]. Also described as new in Geisler 1974:35 [ref. 34382]. •Valid as Corydoras baderi Geisler 1969 -- (Geisler 1974:35 [ref. 34382], Nijssen & Isbrücker 1980:212 [ref. 6910], Burgess 1989:365 [ref. 12860], Le Bail et al. 2000:190 [ref. 24549], Isbrücker 2001:221 [ref. 26805], Reis in Reis et al. 2003:295 [ref. 27061], Britto & Lima 2003:89 [ref. 27314], Ferraris 2007:113 [ref. 29155], Ottoni et al. 2016:132 [ref. 34756]). •Valid as Hoplisoma baderi (Geisler 1969) -- (Dias et al. 2024:26 [ref. 41219]). Current status: Valid as Hoplisoma baderi (Geisler 1969). Callichthyidae: Corydoradinae. Distribution: South America: Pará State, Brazil and Maroni River drainage, Suriname. Habitat: freshwater.

barima, Corydoras Isbrücker [I. J. H.] 1969:292 [Het Aquarium v. 39 (no. 9); ref. 19658] Name only, see also Nijssen and Isbrücker 1979:133 [ref. 19254]. Nomen Nudum. Current status: Synonym of Hoplisoma sipaliwini (Hoedeman 1965). Callichthyidae: Corydoradinae.

benattii, Corydoras Espíndola [V. C.], Tencatt [L. F. C.], Pupo [F. M.], Villa‐Verde [L.] & Britto [M. R.] 2018:[3], Figs. 1-9 [Journal of Fish Biology v. 92 (no. 5); ref. 35899] Rio Culuene, a tributary to the Rio Xingu, between Canarana and Gaúcha do Norte, Mato Grosso, Brazil, 13°30'52"S, 53°05'34"W. Holotype: MZUSP 121671. Paratypes: MNRJ, MZUSP, ZUFMS. Plus additional non-type material. •Valid as Corydoras benattii Espíndola, Tencatt, Pupo, Villa‐Verde & Britto 2018 -- (Tencatt et al. 2022:34 [ref. 39741]). •Valid as Hoplisoma benattii (Espíndola, Tencatt, Pupo, Villa‐Verde & Britto 2018) -- (Dias et al. 2024:26 [ref. 41219]). Current status: Valid as Hoplisoma benattii (Espíndola, Tencatt, Pupo, Villa‐Verde & Britto 2018). Callichthyidae: Corydoradinae. Distribution: South America: Xingu and Tapajós River basins, Brazilian Amazon, Brazil. Habitat: freshwater.

bicolor, Corydoras Nijssen [H.] & Isbrücker [I. J. H.] 1967:36, Pl. 3 (fig. 3) [Zoologische Mededeelingen (Leiden) v. 42 (no. 5); ref. 7981] Sipaliwini River near border with Brazil, Corantijn River system, Paru Savanna, Nickerie, Suriname. Holotype: ZMA 104627. Paratypes: ZMA 104628-29 (36, 6). Type catalog: Nijssen et al. 1982:42 [ref. 19236], Ferraris 2007:114 [ref. 29155]. •Valid as Corydoras bicolor Nijssen & Isbrücker 1967 -- (Nijssen & Isbrücker 1980:201 [ref. 6910], Burgess 1989:365 [ref. 12860], Sands 1995:14 [ref. 22671], Isbrücker 2001:222 [ref. 26805], Reis in Reis et al. 2003:295 [ref. 27061], Britto & Lima 2003:89 [ref. 27314], Ferraris 2007:114 [ref. 29155], Taphorn et al. 2022:44 [ref. 41297], Tencatt et al. 2023:20 [ref. 40562]). •Valid as Hoplisoma bicolor (Nijssen & Isbrücker 1967) -- (Dias et al. 2024:26 [ref. 41219]). Current status: Valid as Hoplisoma bicolor (Nijssen & Isbrücker 1967). Callichthyidae: Corydoradinae. Distribution: South America: coastal rivers (Guyana, Suriname). Habitat: freshwater.

boehlkei, Corydoras Nijssen [H.] & Isbrücker [I. J. H.] 1982:139, Figs. 1-4 [Proceedings of the Academy of Natural Sciences of Philadelphia v. 134; ref. 8436] About 20 miles upstream from junction of Río Caura - Río Erebato, Río Cuchime, 5°45'N, 64°24'W, Edo Bolivar, Venezuela, 5°45'N, 64°24'W. Holotype: ANSP 148097. Paratypes: ANSP 149257 (1), ZMA 119046 (1). Type catalog: Böhlke 1984:31 [ref. 13621], Ferraris 2007:114 [ref. 29155]. •Valid as Corydoras boehlkei Nijssen & Isbrücker 1982 -- (Burgess 1989:365 [ref. 12860], Isbrücker 2001:222 [ref. 26805], Reis in Reis et al. 2003:295 [ref. 27061], Britto & Lima 2003:89 [ref. 27314], Ferraris 2007:114 [ref. 29155]). •Valid as Hoplisoma boehlkei (Nijssen & Isbrücker 1982) -- (Dias et al. 2024:26 [ref. 41219]). Current status: Valid as Hoplisoma boehlkei (Nijssen & Isbrücker 1982). Callichthyidae: Corydoradinae. Distribution: South America: Caura River drainage, Orinoco River basin, Venezuela. Habitat: freshwater.

boesemani, Corydoras Nijssen [H.] & Isbrücker [I. J. H.] 1967:37, Pl. 4 (fig. 1) [Zoologische Mededeelingen (Leiden) v. 42 (no. 5); ref. 7981] Little tributaries of Gran Rio between Ligolio and Awaradam Falls, Brokopondo, Suriname. Holotype: RMNH 25316. Paratypes: RMNH 17283 (1, c&s), 25317 (13), 25328 (2), 25789 [ex ZMA 104626] (1); ZMA 104625 (6), 104638 (1). Type catalog: Nijssen et al. 1982:43 [ref. 19236], Ferraris 2007:114 [ref. 29155]. •Valid as Corydoras boesemani Nijssen & Isbrücker 1967 -- (Nijssen & Isbrücker 1980:211 [ref. 6910], Burgess 1989:365 [ref. 12860], Isbrücker 2001:222 [ref. 26805], Reis in Reis et al. 2003:296 [ref. 27061], Ferraris 2007:114 [ref. 29155]). •Valid as Hoplisoma boesemani (Nijssen & Isbrücker 1967) -- (Dias et al. 2024:26 [ref. 41219]). Current status: Valid as Hoplisoma boesemani (Nijssen & Isbrücker 1967). Callichthyidae: Corydoradinae. Distribution: South America: coastal rivers in Suriname. Habitat: freshwater.

bondi, Corydoras Gosline [W. A.] 1940:20 [Stanford Ichthyological Bulletin v. 2 (no. 1); ref. 6489] Río Yuruari, 3 kilometers east of El Callao, 7°18'N, 61°50'W, Bolivar, Venezuela. Holotype: CAS-SU 35065. Paratypes: CAS-SU 35066-68 (18, 10, 6); USNM 130633 [ex CAS-SU 35068] (1). Type catalog: Böhlke 1953:45 [ref. 12291], Ferraris & Vari 1992:13 [ref. 19771], Ferraris 2007:114 [ref. 29155]. •Valid as Corydoras bondi Gosline 1940 -- (Nijssen & Isbrücker 1980:209 [ref. 6910], Burgess 1989:365 [ref. 12860], Isbrücker 2001:222 [ref. 26805], Reis in Reis et al. 2003:296 [ref. 27061], Ferraris 2007:114 [ref. 29155], Tencatt & Pavanelli 2015:294 [ref. 35434], Tencatt & Ohara 2016:[12] [ref. 34353], Tencatt & Evers 2016:[11] [ref. 34387], Tencatt et al. 2016:[17] [ref. 34388], DoNascimiento et al. 2017:[16] [ref. 35679], Taphorn et al. 2022:44 [ref. 41297]). •Valid as Hoplisoma bondi (Gosline 1940) -- (Dias et al. 2024:26 [ref. 41219]). Current status: Valid as Hoplisoma bondi (Gosline 1940). Callichthyidae: Corydoradinae. Distribution: South America: Yuruari, Corantijn and Rupununi River basins (Guyana, Suriname and Venezuela). Habitat: freshwater.

breei, Corydoras Isbrücker [I. J. H.] & Nijssen [H.] 1992:10, Figs. 1-2, 5 [Beaufortia v. 43 (no. 2); ref. 20559] Avanavero Falls, Kabalebo River, Corantijn River system, Suriname. Holotype: RMNH 31912. Paratypes: RMNH 25335 (3), 26064-66 (10, 2, 21); ZMA 104654 (1), 107611 (5). Type catalog: Ferraris 2007:114 [ref. 29155]. •Valid as Corydoras breei Isbrücker & Nijssen 1992 -- (Burgess & Finley 1996:168 [ref. 22901], Isbrücker 2001:222 [ref. 26805], Reis in Reis et al. 2003:296 [ref. 27061], Ferraris 2007:114 [ref. 29155], Borstein et al. 2022:16 [ref. 39507], Taphorn et al. 2022:44 [ref. 41297]). •Valid as Hoplisoma breei (Isbrücker & Nijssen 1992) -- (Dias et al. 2024:26 [ref. 41219]). Current status: Valid as Hoplisoma breei (Isbrücker & Nijssen 1992). Callichthyidae: Corydoradinae. Distribution: South America: Corantijn River basin (Guyana and Suriname). Habitat: freshwater.

brevirostris, Corydoras melanistius Fraser-Brunner [A.] 1947:244 [Proceedings of the Zoological Society of London v. 117 (pt 1); ref. 13085] Orinoco River, Venezuela (aquarium specimen). Holotype (unique): BMNH 1946.10.10.1. Type catalog: Ferraris 2007:114 [ref. 29155]. •Synonym of Corydoras melanistius Regan 1912, but a valid subspecies as described -- (Nijssen & Isbrücker 1980:197 [ref. 6910], Burgess 1989:366 [ref. 12860], Grant 1998:43 [ref. 23454]). •Valid as Corydoras brevirostris Fraser-Brunner 1947 -- (Le Bail et al. 2000:192 [ref. 24549] as cf. brevirostris, Isbrücker 2001:222 [ref. 26805], Reis in Reis et al. 2003:296 [ref. 27061], Ferraris 2007:114 [ref. 29155], Tencatt & Pavanelli 2015:294 [ref. 35434], Tencatt & Ohara 2016:[12] [ref. 34353], Tencatt & Evers 2016:[11] [ref. 34387], Tencatt et al. 2016:[17] [ref. 34388], DoNascimiento et al. 2017:72 [ref. 35633], Koerber et al. 2022:47 [ref. 39235], Taphorn et al. 2022:45 [ref. 41297]). •Valid as Hoplisoma brevirostre (Fraser-Brunner 1947) -- (Dias et al. 2024:26 [ref. 41219] as brevirostris). Current status: Valid as Hoplisoma brevirostre (Fraser-Brunner 1947). Callichthyidae: Corydoradinae. Distribution: South America: Orinoco River basin and coastal drainages in Suriname (Brazil, Colombia, Guyana, Suriname and Venezuela). Habitat: freshwater.

burgessi, Corydoras Axelrod [H. R.] 1987:22, Fig. [Tropical Fish Hobbyist v. 35 (no. 12); ref. 9153] Rio Unini, tributary of Rio Negro, Amazonas, Brazil. Holotype: MZUSP 37692. Paratypes: USNM 288461 (2). Type catalog: Ferraris & Vari 1992:13 [ref. 19771], Ferraris 2007:114 [ref. 29155]. •Valid as Corydoras burgessi Axelrod 1987 -- (Burgess 1989:365 [ref. 12860], Isbrücker 2001:222 [ref. 26805], Reis in Reis et al. 2003:296 [ref. 27061], Britto & Lima 2003:89 [ref. 27314], Ferraris 2007:114 [ref. 29155], Tencatt et al. 2023:20 [ref. 40562]). •Valid as Hoplisoma burgessi (Axelrod 1987) -- (Dias et al. 2024:26 [ref. 41219]). Current status: Valid as Hoplisoma burgessi (Axelrod 1987). Callichthyidae: Corydoradinae. Distribution: South America: upper Negro River basin, Amazonas State, Brazil. Habitat: freshwater.

caquetae, Corydoras Fowler [H. W.] 1943:248, Figs. 26-27 [Proceedings of the Academy of Natural Sciences of Philadelphia v. 95; ref. 1443] Río Orteguasa at Florencia, 1°37'N, 75°37'W, Caquetá, Colombia. Holotype (unique): ANSP 70509. Type catalog: Böhlke 1984:31 [ref. 13621], Ferraris 2007:119 [ref. 29155]. •Synonym of Corydoras leucomelas Eigenmann & Allen 1942 -- (Nijssen & Isbrücker 1980:198 [ref. 6910], Isbrücker 2001:228 [ref. 26805], Reis in Reis et al. 2003:299 [ref. 27061], Ferraris 2007:119 [ref. 29155]). •Synonym of Hoplisoma leucomelas (Eigenmann & Allen 1942). Current status: Synonym of Hoplisoma leucomelas (Eigenmann & Allen 1942). Callichthyidae: Corydoradinae. Habitat: freshwater.

carlae, Corydoras Nijssen [H.] & Isbrücker [I. J. H.] 1983:76, Figs. 5, 10c [Revue française d'Aquariologie Herpétologie v. 10 (no. 3); ref. 8294] Small arroyo, left bank tributary of Río Iguazu, 50 kilometers from Puerto Iguazu, Paraná basin, Misiones Province, Argentina. Holotype: IRSNB 688. Paratypes: ZMA 119101 (1). Type catalog: Walschaerts 1987:18 [ref. 20755], Ferraris 2007:115 [ref. 29155] •Valid as Corydoras carlae Nijssen & Isbrücker 1983 -- (Burgess 1989:365 [ref. 12860], Miquelarena et al. 1997:70 [ref. 23469], Gómez & Chebez 1996:62 [ref. 23791], Isbrücker 2001:222 [ref. 26805], Reis in Reis et al. 2003:296 [ref. 27061], López et al. 2003:42 [ref. 27366], Menni 2004:82 [ref. 28131], Ferraris 2007:115 [ref. 29155], Calviño & Alonso 2010:199 [ref. 30829], Tencatt et al. 2014:78 [ref. 33230], Tencatt et al. 2014:91 [ref. 33232], Mirande & Koerber 2015:40 [ref. 35117], Tencatt & Pavanelli 2015:294 [ref. 35434], Tencatt & Ohara 2016:[12] [ref. 34353], Tencatt & Evers 2016:[11] [ref. 34387], Tencatt et al. 2016:[17] [ref. 34388], Grant 2018:26 [ref. 36057], dos Reis et al. 2020:464 [ref. 38364]). •Valid as 'Hoplisoma' carlae (Nijssen & Isbrücker 1983) -- (Alonso et al. 2024:12 [ref. 41682]). •Valid as Hoplisoma carlae (Nijssen & Isbrücker 1983) -- (Dias et al. 2024:26 [ref. 41219], Koerber et al. 2024:4 [ref. 41721]). Current status: Valid as Hoplisoma carlae (Nijssen & Isbrücker 1983). Callichthyidae: Corydoradinae. Distribution: South America: Iguaçu River basin (Brazil and Argentina). Habitat: freshwater.

caudimaculatus, Corydoras Rössel [F.] 1961:49, Pl. 5 (figs. 1-2) [Senckenbergiana Biologica v. 42 (nos 1/2); ref. 9377] Main stream of upper Rio Guaporé, Rondônia, Brazil. Holotype: SMF 5291. Paratypes: NMW 61145 [ex SMF 5297] (1); SMF 5292-97 (6). Type information: Knaack 2003:16 [ref. 27879]. Type catalog: Ferraris 2007:115 [ref. 29155]. •Valid as Corydoras caudimaculatus Rössel 1961 -- (Nijssen & Isbrücker 1980:199 [ref. 6910], Burgess 1989:365 [ref. 12860], Isbrücker 2001:223 [ref. 26805], Reis in Reis et al. 2003:296 [ref. 27061], Knaack 2007:43 [ref. 29221], Ferraris 2007:115 [ref. 29155], Sarmiento et al. 2014:190 [ref. 35004], Tencatt & Ohara 2016:[12] [ref. 34353]). •Valid as Hoplisoma caudimaculatum (Rössel 1961) -- (Dias et al. 2024:26 [ref. 41219]). Current status: Valid as Hoplisoma caudimaculatum (Rössel 1961). Callichthyidae: Corydoradinae. Distribution: South America: Guaporé River drainage, western Amazon basin, Brazil and Bolivia. Habitat: freshwater.

cochui, Corydoras Myers [G. S.] & Weitzman [S. H.] 1954:93, Fig. [Aquarium Journal v. 25 (no. 4) (for Apr. 1954); ref. 12425] Rio Araguay, Santa Maria Nova, Goyaz, Brazil. Holotype: CAS-SU 47656. Paratypes: CAS-SU 47657 (2). Authors' record of "a third paratype" should read "a third lot of four additional specimens" (cf. Weitzman 1956:14-15 [ref. 12426] but not Nijssen & Isbrücker 1980:206 [ref. 6910]). Type catalog: Ferraris 2007:115 [ref. 29155]. •Valid as Corydoras cochui Myers & Weitzman 1954 -- (Nijssen & Isbrücker 1980:206 [ref. 6910], Burgess 1989:365 [ref. 12860], Isbrücker 2001:223 [ref. 26805], Britto & Castro 2002:1012 [ref. 26509], Reis in Reis et al. 2003:296 [ref. 27061], Knaack 2004:000 [ref. 28306], Ferraris 2007:115 [ref. 29155], Tencatt et al. 2014:78 [ref. 33230], Tencatt & Pavanelli 2015:294 [ref. 35434], Tencatt & Britto 2016:[1] [ref. 34336], Tencatt & Ohara 2016:[12] [ref. 34353], Tencatt & Evers 2016:[11] [ref. 34387], Tencatt et al. 2016:[17] [ref. 34388]). •Valid as Hoplisoma cochui (Myers & Weitzman 1954) -- (Dias et al. 2024:26 [ref. 41219]). Current status: Valid as Hoplisoma cochui (Myers & Weitzman 1954). Callichthyidae: Corydoradinae. Distribution: South America: upper Araguaia River basin, Brazil. Habitat: freshwater.

colossus, Corydoras Tencatt [L. F. C.], Grant [S.] & Bentley [R. F.] 2023:3, Figs. 1-11 [Neotropical Ichthyology v. 21 (no. 4): e230105; ref. 40652] Rio Jutaí, reportedly near confluence with Rio Solimões, Rio Amazonas basin, Jutaí, Amazonas, Brazil, circa 02°45'S, 66°48'W. Holotype: MNRJ 54421. Paratypes: BMNH, CITL, CPUFMT, INPA, MZUSP, NUP. •Valid as Corydoras colossus Tencatt, Grant & Bentley 2023. •Valid as Hoplisoma colossus (Tencatt, Grant & Bentley 2023) -- (Dias et al. 2024:26 [ref. 41219]). Current status: Valid as Hoplisoma colossus (Tencatt, Grant & Bentley 2023). Callichthyidae: Corydoradinae. Distribution: South America: Jutaí River drainage, Amazon basin, Amazonas State, Brazil. Habitat: freshwater.

concolor, Corydoras Weitzman [S. H.] 1961:105, Figs. 1-2 [Proceedings of the Biological Society of Washington v. 74; ref. 9388] Las Mangas, in a tributary of Río Parguaza, western Bolivar State, Venezuela, 6°20'N, 67°10'W. Holotype: CAS-SU 54131. Paratypes: CAS-SU 54132-33 (1, 4); ZMA 111426 (1). Type catalog: Nijssen et al. 1982:43 [ref. 19236], Ferraris 2007:115 [ref. 29155] •Valid as Corydoras concolor Weitzman 1961 -- (Nijssen & Isbrücker 1980:199 [ref. 6910], Burgess 1989:365 [ref. 12860], Isbrücker 2001:223 [ref. 26805], Reis in Reis et al. 2003:296 [ref. 27061], Ferraris 2007:115 [ref. 29155], Ohara et al. 2016:549 [ref. 34772], DoNascimiento et al. 2017:72 [ref. 35633]). •Valid as Hoplisoma concolor (Weitzman 1961) -- (Dias et al. 2024:26 [ref. 41219]). Current status: Valid as Hoplisoma concolor (Weitzman 1961). Callichthyidae: Corydoradinae. Distribution: South America: Orinoco River basin, Venezuela and Colombia. Habitat: freshwater.

copei, Corydoras Nijssen [H.] & Isbrücker [I. J. H.] 1986:70, Figs. 11, 33C [Revue française d'Aquariologie Herpétologie v. 12 (no. 3) [for 1985]; ref. 8061] Downstream of Río Huytoyacu, right tributary of Río Pastaza, about 40 kilometers north of Lago Rimachi, 4°13'S, 76°38'W, Peru. Holotype: ZMA 119305. Paratypes: ZMA 119306 (4). Type catalog: Ferraris 2007:115 [ref. 29155]. •Valid as Corydoras copei Nijssen & Isbrücker 1986 -- (Burgess 1989:365 [ref. 12860], Isbrücker 2001:223 [ref. 26805], Reis in Reis et al. 2003:296 [ref. 27061], Ferraris 2007:115 [ref. 29155], Barriga Salazar 2014:111 [ref. 35745], Meza-Vargas et al. 2021:25 [ref. 39298]). •Valid as Hoplisoma copei (Nijssen & Isbrücker 1986) -- (Dias et al. 2024:26 [ref. 41219]). Current status: Valid as Hoplisoma copei (Nijssen & Isbrücker 1986). Callichthyidae: Corydoradinae. Distribution: South America: upper Amazon basin (Peru and Ecuador). Habitat: freshwater.

coppenamensis, Corydoras bondi Nijssen [H.] 1970:19, Fig. 8 [Beaufortia v. 18 (no. 230); ref. 7452] Creek at left bank of Coppename River system, 3°52'N, 56°55'W, District Saramacca, Suriname. Holotype: ZMA 105877. Paratypes: BMNH 1970.6.16.2 (?1), 1970.6.16.8 (1); CAS 14499 [ex ZMA 105.873] (2); FMNH 69991 (2); ICN-MHN 1106 (5); IRSNB 467 (8); MBUCV-V-6494 (2); MSNG 43425 [ex ZMA 105872] (2); MZUSP (5); NMW 61106 (9); RMNH 25821 (2); UMMZ 108784 (5); USNM 202129 (5); ZMA 105858 (1), 105872 (239, now 217), 105873-75 (192, 142, 9). Type catalog: Nijssen et al. 1982:43 [ref. 19236], Ibarra & Stewart 1987:27 [ref. 12367], Ferraris & Vari 1992:13 [ref. 19771], Provenzano et al. 1998:6 [ref. 24196], Ferraris 2007:115 [ref. 29155], Mojica & Agudelo-Zamora 2018:30 [ref. 36127]. •Synonym of Corydoras bondi Gosline 1940, but a valid subspecies as described -- (Nijssen & Isbrücker 1980:209 [ref. 6910], Burgess 1989:365 [ref. 12860]). •Valid as Corydoras coppenamensis Nijssen 1970 -- (Isbrücker 2001:223 [ref. 26805], Reis in Reis et al. 2003:296 [ref. 27061], Ferraris 2007:115 [ref. 29155], Tencatt et al. 2013:258 [ref. 32752], Tencatt & Ohara 2016:[12] [ref. 34353], Tencatt et al. 2016:[17] [ref. 34388]). •Valid as Hoplisoma coppenamense (Nijssen 1970) -- (Dias et al. 2024:26 [ref. 41219] as coppenamensis). Current status: Valid as Hoplisoma coppenamense (Nijssen 1970). Callichthyidae: Corydoradinae. Distribution: South America: Coppename River basin, Suriname. Habitat: freshwater.

cruziensis, Corydoras Knaack [J.] 2002:63, Figs. [VDA Aktuell 2002 (no. 3); ref. 27232] Guarayos, Santa Cruz Department, Bolivia, 16°20.014'S, 62°50.912'W, elevation 215 meters. Holotype: MTD F 25930. Paratypes: (46) CIRA-UTB 1000a-c (2, 2, 8), ZMA 123580-82 (2, 2, 7), ZMB 33299-301 (2, 2, 8). Type catalog: Zarske 2003:24 [ref. 27474], Ferraris 2007:115 [ref. 29155]. •Valid as Corydoras cruziensis Knaack 2002 -- (de Pinna & Wosiacki in Reis et al. 2003:296 [ref. 27061], Ferraris 2007:115 [ref. 29155], Sarmiento et al. 2014:190 [ref. 35004], Tencatt & Ohara 2016:[12] [ref. 34353]). •Valid as Hoplisoma cruziense (Knaack 2002) -- (Dias et al. 2024:26 [ref. 41219] as cruziensis). Current status: Valid as Hoplisoma cruziense (Knaack 2002). Callichthyidae: Corydoradinae. Distribution: South America: Madeira River basin, Santa Cruz and Beni Departments, Bolivia. Habitat: freshwater.

davidsandsi, Corydoras Black [B.] 1987:74, Fig. [Practical Fishkeeping 1987; ref. 16219] Rio Unini, whitewater area of the Rio Negro, Brazil. Holotype: MZUSP 38632. Paratypes: MZUSP (3). Type catalog: Ferraris 2007:116 [ref. 29155] •Valid as Corydoras davidsandsi Black 1987 -- (Burgess & Finley 1996:168 [ref. 22901], Isbrücker 2001:224 [ref. 26805], Reis in Reis et al. 2003:297 [ref. 27061], Britto & Lima 2003:89 [ref. 27314], Ferraris 2007:116 [ref. 29155], Tencatt & Pavanelli 2015:294 [ref. 35434], Tencatt & Ohara 2016:[13] [ref. 34353], Tencatt & Evers 2016:[11] [ref. 34387], Tencatt et al. 2016:[17] [ref. 34388]). •Valid as Hoplisoma davidsandsi (Black 1987) -- (Dias et al. 2024:26 [ref. 41219]). Current status: Valid as Hoplisoma davidsandsi (Black 1987). Callichthyidae: Corydoradinae. Distribution: South America: Negro River basin, Brazil. Habitat: freshwater.

diphyes, Corydoras Axenrot [T. E.] & Kullander [S. O.] 2003:258, Fig. 5 [Ichthyological Exploration of Freshwaters v. 14 (no. 3); ref. 27393] Small stream (arroyo) at Estancia María Belén, 8 kilometers from Colonel Patricio Colman, 25°40'13"S, 55°05'52"W, río Paraná drainage, Depto. Caaguazú, Paraguay. Holotype: MNHNP uncat. [ex. NRM 43483]. Paratypes: (621 specimens) MHNG 2482.23 (2); NRM 41765 (1), 41798 (15), 41826 (1), 41928 (3), 41930 (1), 42062 (18), 42094 (75), 42096 (101), and others at NRM. Type catalog: Ferraris 2007:116 [ref. 29155]. •Valid as Corydoras diphyes Axenrot & Kullander 2003 -- (Knaack 2004:108 [ref. 28306], Ferraris 2007:116 [ref. 29155], Tencatt & Pavanelli 2015:294 [ref. 35434], Tencatt & Ohara 2016:[13] [ref. 34353], Tencatt & Evers 2016:[11] [ref. 34387], Tencatt et al. 2016:[17] [ref. 34388], Koerber et al. 2017:57 [ref. 35267]). •Valid as Hoplisoma diphyes (Axenrot & Kullander 2003) -- (Dias et al. 2024:26 [ref. 41219], Koerber 2024:5 [ref. 41228]). •Valid as 'Hoplisoma' diphyes (Axenrot & Kullander 2003) -- (Alonso et al. 2024:12 [ref. 41682]). Current status: Valid as Hoplisoma diphyes (Axenrot & Kullander 2003). Callichthyidae: Corydoradinae. Distribution: South America: Monday and Acaray River drainages, Paraná River basin (Paraguay). Habitat: freshwater.

dubius, Corydoras Nijssen [H.] & Isbrücker [I. J. H.] 1967:38, Pl. 4 (fig. 2) [Zoologische Mededeelingen (Leiden) v. 42 (no. 5); ref. 7981] Surroundings of Paramaribo, Suriname [probably Peru or French Guiana] (aquarium specimens). Holotype: ZMA 104632. Paratypes: ZMA 110633 (15). Type catalog: Nijssen et al. 1982:44 [ref. 19236], Ferraris 2007:126 [ref. 29155]. •Uncertain in genus Corydoras -- (Grant 2022:13 [ref. 39178]). •Synonym of Corydoras trilineatus Cope 1872 -- (Nijssen & Isbrücker 1980:194 [ref. 6910], Isbrücker 2001:237 [ref. 26805], Reis in Reis et al. 2003:304 [ref. 27061], Ferraris 2007:126 [ref. 29155]). •Synonym of Hoplisoma trilineatum (Cope 1872). Current status: Synonym of Hoplisoma trilineatum (Cope 1872). Callichthyidae: Corydoradinae. Habitat: freshwater.

duplicareus, Corydoras Sands [D. D.] 1995:12, Fig. 6 [Freshwater and Marine Aquarium v. 18 (no. 7); ref. 22671] Rio Poranga, 8 kilometers north of the Nobua oba, prior to where it joins a small tributary of the upper Negro River, Brazil. Holotype: LIVCM 1994.4.36. Paratypes: LIVCM 1994.4.37 (1). •Valid as Corydoras duplicareus Sands 1995 -- (Burgess & Finley 1996:168 [ref. 22901], Isbrücker 2001:224 [ref. 26805], Reis in Reis et al. 2003:297 [ref. 27061], Britto & Lima 2003:89 [ref. 27314]). •Valid as Hoplisoma duplicareum (Sands 1995) -- (Dias et al. 2024:26 [ref. 41219]). Current status: Valid as Hoplisoma duplicareum (Sands 1995). Callichthyidae: Corydoradinae. Distribution: South America: upper Negro River basin, Brazil. Habitat: freshwater.

ehrhardti, Corydoras Steindachner [F.] 1910:60 [Anzeiger der Kaiserlichen Akademie der Wissenschaften in Wien, Mathematisch-Naturwissenschaftlichen Klasse v. 47 (no. 8) (for 10 Mar. 1910); ref. 14813] Affluents from Jaraguá mountains, near Joinville, 26°21'S, 48°49'W, Santa Catarina State, Brazil. Lectotype: NMW 61104 [ex NMW 46716]. Paralectotypes: BMNH 1910.3.17.1 (1); MNHN 1910-0160 to 0162 (3); MZUT 1324 (1); NMW 45446 (5), 46711 (6), 46703 (2), 46713 (6), 46716/46718 (?31 + 13); SMNS 4524 (2); ZMA 110470 [ex NMW 46718] (5); ZSM 4813 [ex NMW 46716] (1), ZSM 17983 [ex NMW] (1). Type catalog: Tortonese 1940:136 [ref. 21559], Bertin & Estève 1950:65 [ref. 19575], Nijssen et al. 1982:205 [ref. 19236], Fricke 1995:6 [ref. 28100], Fricke 2005:19 [ref. 29864], Ferraris 2007:116 [ref. 29155], Neumann 2011:242 [ref. 31652]. Lectotype selected by Nijssen & Isbrücker 1980:205 [ref. 6910]. •Valid as Corydoras ehrhardti Steindachner 1910 -- (Nijssen & Isbrücker 1980:205 [ref. 6910], Burgess 1989:365 [ref. 12860], Isbrücker 2001:224 [ref. 26805], Reis in Reis et al. 2003:297 [ref. 27061], Axenrot & Kullander 2003:265 [ref. 27393] as cf. aff. ehrhardti, Shimabukuro-Dias et al. 2004:141 [ref. 27796], Ferraris 2007:116 [ref. 29155], Britski & Mendonça 2010:91 [ref. 30773], Tencatt et al. 2014:78 [ref. 33230], Tencatt et al. 2014:91 [ref. 33232], Koerber et al. 2015:3 [ref. 35179], Tencatt & Pavanelli 2015:294 [ref. 35434], Tencatt & Ohara 2016:[13] [ref. 34353], Tencatt & Evers 2016:[11] [ref. 34387], Tencatt et al. 2016:[17] [ref. 34388], Ottoni et al. 2016:132 [ref. 34756], Koerber et al. 2017:6 [ref. 35083], Koerber et al. 2017:7 [ref. 35632], Koerber et al. 2019:7 [ref. 36736], Mirande & Koerber 2020:2 [ref. 37594], dos Reis et al. 2020:464 [ref. 38364]). •Valid as 'Hoplisoma' ehrhardti (Steindachner 1910) -- (Alonso et al. 2024:12 [ref. 41682]). •Valid as Hoplisoma ehrhardti (Steindachner 1910) -- (Dias et al. 2024:26 [ref. 41219], Koerber et al. 2024:4 [ref. 41721]). Current status: Valid as Hoplisoma ehrhardti (Steindachner 1910). Callichthyidae: Corydoradinae. Distribution: South America: coastal rivers in Santa Catarina and Paraná states and Iguaçu River basin (Brazil and Argentina). Habitat: freshwater.

episcopi, Corydoras Eigenmann [C. H.] & Allen [W. R.] 1942:177, Pl. 12 (fig. 3) [Fishes of western South America; ref. 1246] Rio Morona, Loreto, Peru. Holotype: CAS 36448 [ex IU 15605]. Paratypes: CAS 36446 [ex IU 15816] (3). Type catalog: Ferraris 2007:126 [ref. 29155]. •Synonym of Corydoras trilineatus Cope 1872 -- (Ovchynnyk 1967:36 [ref. 37559], Nijssen & Isbrücker 1980:194 [ref. 6910], Isbrücker 2001:237 [ref. 26805], Reis in Reis et al. 2003:303 [ref. 27061], Ferraris 2007:126 [ref. 29155]). •Synonym of Hoplisoma trilineatum (Cope 1872). Current status: Synonym of Hoplisoma trilineatum (Cope 1872). Callichthyidae: Corydoradinae. Habitat: freshwater.

esperanzae, Corydoras Castro [D. M.] 1987:34, Figs. 2- 3b; Pl. 4 (fig. 2) [Boletin Ecotrópica. No. 16; ref. 16225] Río Meta, Caño Orocue at Orocue, Colombia, 4°49'N, 71°20'W. Holotype: UBJTL MM275. Paratypes: UBJTL MM275.1 (4). Type catalog: Ferraris 2007:117 [ref. 29155]. •Synonym of Corydoras concolor Weitzman 1961 -- (Isbrücker 2001:223 [ref. 26805]). •Valid as Corydoras esperanzae Castro 1987 -- (Burgess & Finley 1996:168 [ref. 22901], Reis in Reis et al. 2003:297 [ref. 27061], Ferraris 2007:117 [ref. 29155], DoNascimiento et al. 2017:73 [ref. 35633]). •Valid as Hoplisoma esperanzae (Castro 1987) -- (Dias et al. 2024:26 [ref. 41219]). Current status: Valid as Hoplisoma esperanzae (Castro 1987). Callichthyidae: Corydoradinae. Distribution: South America; Meta River basin, Colombia. Habitat: freshwater.

evelynae, Corydoras Rössel [F.] 1963:360, Fig. 4 [Senckenbergiana Biologica v. 44 (no. 5); ref. 19251] Upper Rio Salimões, Amazonas, Brazil. Holotype (unique): SMF 6107. Type catalog: Ferraris 2007:117 [ref. 29155]. Also appeared in Rössel 1966:9 [ref. 9060]. •Valid as Corydoras evelynae Rössel 1963 -- (Nijssen & Isbrücker 1980:201 [ref. 6910], Burgess 1989:366 [ref. 12860], Isbrücker 2001:225 [ref. 26805], Reis in Reis et al. 2003:297 [ref. 27061], Ferraris 2007:117 [ref. 29155], DoNascimiento et al. 2017:73 [ref. 35633]). •Valid as Hoplisoma evelynae (Rössel 1963) -- (Dias et al. 2024:26 [ref. 41219]). Current status: Valid as Hoplisoma evelynae (Rössel 1963). Callichthyidae: Corydoradinae. Distribution: South America: Amazon River basin, Brazil and Colombia. Habitat: freshwater.

eversi, Corydoras Tencatt [L. F. C.] & Britto [M. R.] 2016:[2], Figs. 1, 2a, 2c, 3-5 [Neotropical Ichthyology v. 14 (no. 1) e150062; ref. 34336] Goiás, Montes Claros de Goiás, unnamed stream tributary to the Rio Araguaia, Brazil, 15°53'10"S, 51°41'34"W. Holotype: MNRJ 43195. Paratypes: MZUSP, NUP, ZUFMS-PIS. Type catalog: Oliveira et al. 2022:11 [ref. 39255]. •Valid as Corydoras eversi Tencatt & Britto 2016. •Valid as Hoplisoma eversi (Tencatt & Britto 2016) -- (Dias et al. 2024:26 [ref. 41219]). Current status: Valid as Hoplisoma eversi (Tencatt & Britto 2016). Callichthyidae: Corydoradinae. Distribution: South America: Montes Claros (Goiás, Brazil). Habitat: freshwater.

flaveolus, Corydoras Ihering [R. von] 1911:386 [Revista do Museo Paulista, São Paulo v. 8 (1910); ref. 14822] Tributaries to Rio Piracicaba above Salto, 23°10'S, 47°16'W, Estado de São Paulo, Brazil. Lectotype: MZUSP [ex DZSASP] 424. Type information: Britski 1969:207 [ref. 12401], Ferraris 2007:117 [ref. 29155]. One specimen known but description suggests more; known specimen is regarded as lectotype (see Nijssen & Isbrücker 1980:205 [ref. 6910]). •Valid as Corydoras flaveolus Ihering 1911 -- (Nijssen & Isbrücker 1980:205 [ref. 6910], Burgess 1989:366 [ref. 12860], Britto & Castro 2002:1007 [ref. 26509], Isbrücker 2001:225 [ref. 26805], Reis in Reis et al. 2003:297 [ref. 27061], Knaack 2004:111 [ref. 28306], Ferraris 2007:117 [ref. 29155], Tencatt et al. 2014:78 [ref. 33230], Tencatt et al. 2014:91 [ref. 33232], Tencatt & Pavanelli 2015:294 [ref. 35434], Tencatt & Ohara 2016:[13] [ref. 34353], Tencatt & Evers 2016:[11] [ref. 34387], Tencatt et al. 2016:[17] [ref. 34388], Ohara et al. 2016:549 [ref. 34772]). •Valid as Hoplisoma flaveolum (Ihering 1911) -- (Dias et al. 2024:26 [ref. 41219]). •Valid as 'Hoplisoma' flaveolum (Ihering 1911) -- (Alonso et al. 2024:12 [ref. 41682]). Current status: Valid as Hoplisoma flaveolum (Ihering 1911). Callichthyidae: Corydoradinae. Distribution: South America: upper Paraná River basin, Brazil. Habitat: freshwater.

froehlichi, Corydoras Tencatt [L. F. C.], Britto [M. R.] & Pavanelli [C. S.] 2016:[11], Figs. 3b, 4b, 8, 9 [Neotropical Ichthyology v. 14 (no. 1) e150089; ref. 34388] Rio Pelotas, Esmeralda, Rio Grande do Sul, Brazil, 27°47’51"S, 51°10’17"W. Holotype: MCP 48433. Paratypes: MCP, MNRJ, MZUSP, NUP. Type catalog: Oliveira et al. 2022:11 [ref. 39255]. •Valid as Corydoras froehlichi Tencatt, Britto & Pavanelli 2016 -- (Bertaco et al. 2016:416 [ref. 34561], Grant 2018:26 [ref. 36057]). •Valid as Hoplisoma froehlichi (Tencatt, Britto & Pavanelli 2016) -- (Dias et al. 2024:26 [ref. 41219]). Current status: Valid as Hoplisoma froehlichi (Tencatt, Britto & Pavanelli 2016). Callichthyidae: Corydoradinae. Distribution: South America: upper rio Uruguai basin (Rio Grande do Sul, Brazil). Habitat: freshwater.

gersoni, Corydoras Emmens [C. W.] & Axelrod [H. R.] 1968:64, 2 Figs. [Catfish; ref. 19659] Not available, no description or definition -- see Nijssen and Isbrücker 1979:133 [ref. 19254]. •Synonym of Hoplisoma polystictum (Regan 1912). Nomen Nudum. Current status: Synonym of Hoplisoma polystictum (Regan 1912). Callichthyidae: Corydoradinae. Habitat: freshwater.

gladysae, Corydoras Calviño [P. A.] & Alonso [F.] 2010:200, Fig. 1 [Revista del Museo Argentino de Ciencias Naturales, n.s. v. 11 (no. 2) [for 2009]; ref. 30829] Calchaquí River, 25°02'59"S, 66°06'25" W, Payogasta, Cachi Department, Salta Province, Argentina, elevation 2430 meters. Holotype: MACN 9232. Paratypes: MCNI 712 (4), 913 (4). •Valid as Corydoras gladysae Calviño & Alonso 2010 -- (Koerber 2011:5 [ref. 31122], Koerber 2014:8 [ref. 33621], Mirande & Koerber 2015:40 [ref. 35117], Ohara et al. 2016:548 [ref. 34772]). •Valid as Urkumayu gladysae (Calviño & Alonso 2010) -- (Alonso et al. 2024:4 [ref. 41682], Koerber et al. 2024:4 [ref. 41721]). •Valid as Hoplisoma gladysae (Calviño & Alonso 2010) -- (Dias et al. 2024:26 [ref. 41219]). Current status: Valid as Hoplisoma gladysae (Calviño & Alonso 2010). Callichthyidae: Corydoradinae. Distribution: South America: Calchaquí River drainage, upper Juramento River basin, Salta Province (Argentina). Habitat: freshwater.

gossei, Corydoras Nijssen [H.] 1972:424, Fig. 6 [Netherlands Journal of Zoology v. 21 (no. 4); ref. 673] Near Guajará Mirim, 10°50'S, 65°21'W, Rio Mamoré system, Rondônia State, Brazil. Holotype: IRSNB 487. Paratypes: IRSNB 488 (orig. 13, now 7), MZUSP [ex IRSNB 488] (6), USNM 205867 (2), ZMA 110396 (12). Type catalog: Nijssen et al. 1982:45 [ref. 19236], Walschaerts 1987:18 [ref. 20755], Ferraris & Vari 1992:14 [ref. 19771], Ferraris 2007:118 [ref. 29155]. •Valid as Corydoras gossei Nijssen 1972 -- (Nijssen & Isbrücker 1980:212 [ref. 6910], Burgess 1989:366 [ref. 12860], Isbrücker 2001:226 [ref. 26805], Reis in Reis et al. 2003:298 [ref. 27061], Ferraris 2007:118 [ref. 29155], Sarmiento et al. 2014:190 [ref. 35004], Tencatt & Pavanelli 2015:294 [ref. 35434], Tencatt & Ohara 2016:[13] [ref. 34353], Tencatt & Evers 2016:[11] [ref. 34387], Tencatt et al. 2016:[17] [ref. 34388], Ohara et al. 2016:550 [ref. 34772]). •Valid as Hoplisoma gossei (Nijssen 1972) -- (Dias et al. 2024:26 [ref. 41219]). Current status: Valid as Hoplisoma gossei (Nijssen 1972). Callichthyidae: Corydoradinae. Distribution: South America: Mamoré River drainage, western Aamzon basin, Brazil and Bolivia. Habitat: freshwater.

granti, Corydoras Tencatt [L. F. C.], Lima [F. C. T.] & Britto [M. R.] 2019:[9], Figs. 3b, 4d, 5b, 9-11, 13, 15a [Journal of Fish Biology v. 95 (no. 2); ref. 36697] Igarapé Ya-Mirim (= Iazinho), a tributary to the Rio Cauaburi, itself a tributary to the Rio Negro, São Gabriel da Cachoeira, Amazonas, Brazil, 0° 16'19"N, 66°38'21"W. Holotype: MNRJ 51193. Paratypes: ANSP, FMNH, ICNMHN, INPA, LBP, MCP, MCZ, MNRJ, MZUSP, NRM, NUP, ZUEC, ZUFMS. Plus additional non-type material. Type catalog: Oliveira et al. 2022:11 [ref. 39255]. •Valid as Corydoras granti Tencatt, Lima & Britto 2019 -- (Bentley et al. 2021:189 [ref. 38185]). •Valid as Hoplisoma granti (Tencatt, Lima & Britto 2019) -- (Dias et al. 2024:26 [ref. 41219]). Current status: Valid as Hoplisoma granti (Tencatt, Lima & Britto 2019). Callichthyidae: Corydoradinae. Distribution: South America: widely distributed in the central and western Amazon basin (Brazil, Peru, Colombia and Ecuador). Habitat: freshwater.

griseus, Corydoras Holly [M.] 1940:110 [Anzeiger der Akademie der Wissenschaften in Wien, Mathematisch-Naturwissenschaftliche Klasse v. 77 (no. 15); ref. 13059] Aquarium specimen (said to be from very small water-courses of the Amazon). [Essequibo, Potaro River, Guyana]. Holotype: Münchner Tierpark A.G. 72/1938 (lost in WWII). Type catalog: Ferraris 2007:118 [ref. 29155], Bogutskaya et al. 2022:74 [ref. 39277]. Locality corrected by Nijssen & Isbrücker 1980. Comments on identity of this taxon see Grant 2021:18-20 [ref. 38629]. •Valid as Corydoras griseus Holly 1940 -- (Nijssen & Isbrücker 1980:210 [ref. 6910], Burgess 1989:366 [ref. 12860], Isbrücker 2001:226 [ref. 26805], Reis in Reis et al. 2003:298 [ref. 27061], Ferraris 2007:118 [ref. 29155], Tencatt & Pavanelli 2015:294 [ref. 35434], Tencatt & Ohara 2016:[13] [ref. 34353], Tencatt & Evers 2016:[11] [ref. 34387], Tencatt et al. 2016:[17] [ref. 34388], Lima & Britto 2020:528 [ref. 37324], Grant 2021:20 [ref. 38629], Taphorn et al. 2022:45 [ref. 41297]). •Valid as Hoplisoma griseum (Holly 1940) -- (Dias et al. 2024:26 [ref. 41219]). Current status: Valid as Hoplisoma griseum (Holly 1940). Callichthyidae: Corydoradinae. Distribution: South America: Amazon River basin (Brazil and Guyana). Habitat: freshwater.

gryphus, Corydoras Tencatt [L. F. C.], Britto [M. R.] & Pavanelli [C. S.] 2014:72, Figs. 1-3 [Neotropical Ichthyology v. 12 (no. 1); ref. 33230] Paraná, Foz do Iguaçu, rio Paraná (near Ponte da Amizade), approximately 25°31’S, 54°38’W, Brazil. Holotype: MNRJ 40770. Paratypes: MCP 47852 (6), ZUEC-PIS 7656 (9). Type catalog: Oliveira et al. 2022:11 [ref. 39255]. Tencatt & Evers 2016:[11] [ref. 34387] mention 3 paratypes as NUP 14676. •Valid as Corydoras gryphus Tencatt, Britto & Pavanelli 2014 -- (Tencatt & Pavanelli 2015:294 [ref. 35434], Tencatt & Ohara 2016:[13] [ref. 34353], Tencatt & Evers 2016:[11] [ref. 34387], Tencatt et al. 2016:[17] [ref. 34388]). •Valid as Hoplisoma gryphus (Tencatt, Britto & Pavanelli 2014) -- (Dias et al. 2024:26 [ref. 41219]). Current status: Valid as Hoplisoma gryphus (Tencatt, Britto & Pavanelli 2014). Callichthyidae: Corydoradinae. Distribution: South America: Rio Paraná drainage, Lower Parana (Brazil). Habitat: freshwater.

guianensis, Corydoras Nijssen [H.] 1970:21, Fig. 9 [Beaufortia v. 18 (no. 230); ref. 7452] Creek at right of Nickerie River, 12 kilometers west-south-west of Stondansie Fall, Nickerie District, Suriname. Holotype: ZMA 105933. Paratypes: CAS 14504 [ex ZMA 105.837] (2); BMNH 1970.6.16.4-5 (2); IRSNB 468 (31); NMW 61107 [=75465] (7); RMNH 18499 (1), 25822 (2); USNM 204218 (2); ZMA 105836 (4), 105837 (130, now 90), 105887-88 (1, 4), 106101 (1). Type catalog: Nijssen et al. 1982:45 [ref. 19236] with some discrepancies in number of specimens from Nijssen & Isbrücker 1980:212 [ref. 6910], Walschaerts 1987:18 [ref. 20755], Ferraris & Vari 1992:14 [ref. 19771], Ferraris 2007:118 [ref. 29155]. •Valid as Corydoras guianensis Nijssen 1970 -- (Nijssen & Isbrücker 1980:212 [ref. 6910], Burgess 1989:366 [ref. 12860], Le Bail et al. 2000:198 [ref. 24549], Isbrücker 2001:227 [ref. 26805], Reis in Reis et al. 2003:298 [ref. 27061], Ferraris 2007:118 [ref. 29155]). •Valid as Hoplisoma guianense (Nijssen 1970) -- (Dias et al. 2024:26 [ref. 41219] as guianensis). Current status: Valid as Hoplisoma guianense (Nijssen 1970). Callichthyidae: Corydoradinae. Distribution: South America: coastal rivers of French Guiana and Suriname. Habitat: freshwater.

habrosus, Corydoras Weitzman [S. H.] 1960:141, Figs. 1-2 [Stanford Ichthyological Bulletin v. 7 (no. 4); ref. 9614] Río Salinas, tributary of Río Pao Viejo, El Baúl, 8°59'N, 68°16'W, Cojedes, Venezuela. Holotype: CAS-SU 52351. Paratypes: CAS-SU 52350 (now 3), ZMA 111422 (1). Type catalog: Nijssen et al. 1982:45 [ref. 19236], Ferraris 2007:118 [ref. 29155]. •Valid as Corydoras habrosus Weitzman 1960 -- (Nijssen & Isbrücker 1980:211 [ref. 6910], Burgess 1989:366 [ref. 12860], Isbrücker 2001:227 [ref. 26805], Reis in Reis et al. 2003:298 [ref. 27061], Ferraris 2007:118 [ref. 29155], DoNascimiento et al. 2017:73 [ref. 35633]). •Valid as Hoplisoma habrosum (Weitzman 1960) -- (Dias et al. 2024:26 [ref. 41219]). Current status: Valid as Hoplisoma habrosum (Weitzman 1960). Callichthyidae: Corydoradinae. Distribution: South America: upper Orinoco River basin, Colombia and Venezuela. Habitat: freshwater.

hypnos, Corydoras Tencatt [L. F. C.], Ohara [W. M.], Sousa [L. M. de] & Britto [M. R.] 2022:15, Figs. 7-10 [Neotropical Ichthyology v. 20 (no. 3): e220070; ref. 39741] Rio Jamanxim, a tributary to the rio Tapajós, Novo Progresso Municipality, Pará State, Brazil, 08°23'00"S, 55°19'08"W. Holotype: MNRJ 53288. Paratypes: CITL, INPA, MZUSP, NUP. •Valid as Hoplisoma hypnos (Tencatt, Ohara, Sousa & Britto 2022). Current status: Valid as Hoplisoma hypnos (Tencatt, Ohara, Sousa & Britto 2022). Callichthyidae: Corydoradinae. Distribution: South America: Jamanxim River drainage, Tapajós River basin, Brazil. Habitat: freshwater.

julii, Corydoras Steindachner [F.] 1906:480 [Anzeiger der Kaiserlichen Akademie der Wissenschaften, Mathematisch-Naturwissenschaftlichen Classe v. 43; ref. 15716] Creek into River Parnaíba near Alto Parnaíba (= Victoria), 9°08'S, 45°56'W, Brazil. Lectotype: NMW 61105 [ex NMW 46734]. Paralectotypes: (several) NMW 46734-36 (5, 2, 2), 46741-43 (3, 22, 40); MNHN 1907-0176 (2); MZUT 1676 (1); RMNH 7975 (3); ZMA 110474 [ex NMW 46375] (6), 110475 [ex NMW 46736] (3); ZSM 17995-98 (4). Type catalog: Tortonese 1940:136 [ref. 21559], Bertin & Estève 1950:65 [ref. 19575], Nijssen et al. 1982:46 [ref. 19236], Ferraris 2007:119 [ref. 29155], Neumann 2011:243 [ref. 31652]. Lectotype selected by Nijssen & Isbrücker 1980:195 [ref. 6910]. •Valid as Corydoras julii Steindachner 1906 -- (Ovchynnyk 1967:36 [ref. 37559], Nijssen & Isbrücker 1980:195 [ref. 6910], Burgess 1989:366 [ref. 12860], Isbrücker 2001:227 [ref. 26805], Reis in Reis et al. 2003:299 [ref. 27061], Ferraris 2007:119 [ref. 29155], Espíndola et al. 2014:28 [ref. 33269], Ramos et al. 2014:4 [ref. 35321], Tencatt & Pavanelli 2015:294 [ref. 35434], Tencatt & Ohara 2016:[13] [ref. 34353], Tencatt & Evers 2016:[11] [ref. 34387], Tencatt et al. 2016:[17] [ref. 34388], Ottoni et al. 2016:133 [ref. 34756], Lima & Sazima 2017:30 [ref. 35111], Koerber et al. 2022:48 [ref. 39235], Vieira et al. 2023:20 [ref. 40759], Limeira-Filho et al. 2024:7 [ref. 41573]). •Valid as Hoplisoma julii (Steindachner 1906) -- (Dias et al. 2024:26 [ref. 41219]). Current status: Valid as Hoplisoma julii (Steindachner 1906). Callichthyidae: Corydoradinae. Distribution: South America: lower Amazon River basin and coastal rivers (northeastern Brazil). IUCN (2022): Least Concern, as Corydoras julii. Habitat: freshwater.

juquiaae, Corydoras Ihering [R. von] 1907:36 [37] [Notas preliminares; editadas pela redaccão da Revista do Museu Paulista v. 1 (fasc. 1); ref. 2294] Rio Juquiá, Poço Grande, São Paulo State, Brazil. Lectotype: CAS 16016 [ex IU 10796]. Paralectotypes: BMNH 1905.6.9.9 (1); MZUSP [ex DZSASP] 1984 (1), MZUSP [ex DZSASP] 5326-30 (5); NMW 18993-94 (1, 1). Type catalog: Ferraris 2007:121 [ref. 29155]. Portuguese on p. 37. Syntypes: Lectotype established first by Ellis 1913:403 [ref. 1270] with catalog number as IU 10996 [error for 10796]. Britski 1969:207 [ref. 12401] viewed Ellis' designation as an incorrect interpretation of a holotype, and he designated DZSASP 1984 as lectotype; spelled species as juquiae. •Synonym of Corydoras nattereri Steindachner 1876 -- (Nijssen & Isbrücker 1980:204 [ref. 6910], Isbrücker 2001:231 [ref. 26805], Reis in Reis et al. 2003:300 [ref. 27061], Ferraris 2007:121 [ref. 29155]). •Synonym of Hoplisoma nattereri (Steindachner 1876). Current status: Synonym of Hoplisoma nattereri (Steindachner 1876). Callichthyidae: Corydoradinae. Habitat: freshwater.

kanei, Corydoras Grant [S.] 1997:41, Photos 1-2 [The Aquarist and Pondkeeper v. 62 (no. 10) (for 1998); ref. 23454] Aquarium specimens said to be from near the town of Boa Vista, Roraima State, Brazil [possibly from the Rio Branco]. Holotype: MZUSP 52489 [currently BMNH 1997.10.23.1]. Paratypes: BMNH 1997.10.23.2-4 (3). Type catalog: Ferraris 2007:119 [ref. 29155]. •Valid as Corydoras kanei Grant 1997 (often seen as 1998) -- (Isbrücker 2001:227 [ref. 26805], Reis in Reis et al. 2003:299 [ref. 27061] dated 1997, Ferraris 2007:119 [ref. 29155], Tencatt & Ohara 2016:[13] [ref. 34353], Tencatt & Evers 2016:[11] [ref. 34387], Tencatt et al. 2016:[17] [ref. 34388]). •Valid as Hoplisoma kanei (Grant 1997) -- (Dias et al. 2024:26 [ref. 41219]). Current status: Valid as Hoplisoma kanei (Grant 1997). Callichthyidae: Corydoradinae. Distribution: South America: Negro River basin, Brazil. Habitat: freshwater.

knaacki, Corydoras Tencatt [L. F. C.] & Evers [H.-G.] 2016:[2], Figs. 1-4, 7 [Neotropical Ichthyology v. 14 (no. 1) e150019; ref. 34387] Swamps in the vicinity of the town of Santa Rita, draining into the río Inambari, río Madre de Dios basin, Madre de Dios, Peru, 12°54’46.4"S, 70°10’37.4"W. Holotype: MUSM 52730. Paratypes: INPA, MNRJ, MZUSP, NUP, ROM, ZUFMS-PIS. Type catalog: Oliveira et al. 2022:11 [ref. 39255]. •Valid as Corydoras knaacki Tencatt & Evers 2016. •Valid as Hoplisoma knaacki (Tencatt & Evers 2016) -- (Dias et al. 2024:26 [ref. 41219]). Current status: Valid as Hoplisoma knaacki (Tencatt & Evers 2016). Callichthyidae: Corydoradinae. Distribution: South America: Rio Madre de Dios basin (Peru). Habitat: freshwater.

lacrimostigmata, Corydoras Tencatt [L. F. C.], Britto [M. R.] & Pavanelli [C. S.] 2014:91, Figs. 1-2a [Neotropical Ichthyology v. 12 (no. 1); ref. 33232] Paraná, Cândido de Abreu, rio Maria Flora, tributary to rio Ubazinho, rio Ivaí basin, 24°36’32"S, 51°15’32"W, Brazil. Holotype: MNRJ 40725. Paratypes: MCP, MNRJ, NUP, ZUEC-Pis. Type catalog: Oliveira et al. 2022:12 [ref. 39255]. The specific epithet is regarded as an indeclinable noun. •Valid as Corydoras lacrimostigmata Tencatt, Britto & Pavanelli 2014 -- (Tencatt & Pavanelli 2015:294 [ref. 35434], Tencatt & Ohara 2016:[13] [ref. 34353], Tencatt & Evers 2016:[11] [ref. 34387], Tencatt et al. 2016:[17] [ref. 34388], dos Reis et al. 2020:464 [ref. 38364]). •Valid as Hoplisoma lacrimostigmata (Tencatt, Britto & Pavanelli 2014) -- (Dias et al. 2024:26 [ref. 41219]). Current status: Valid as Hoplisoma lacrimostigmata (Tencatt, Britto & Pavanelli 2014). Callichthyidae: Corydoradinae. Distribution: South America: Rio Ivaí basin (southern Brazil). Habitat: freshwater.

leucomelas, Corydoras Eigenmann [C. H.] & Allen [W. R.] 1942:178, Pl. 12 (fig. 4) [Fishes of western South America; ref. 1246] Yarinacocha, cutoff lake at right bank of Río Pacaya, near Sarayacu, about 5°15'S, 74°15'W, Upper Amazon, Peru. Holotype (unique): CAS 36561 [ex IU 15818]. Type catalog: Ferraris 2007:119 [ref. 29155]. •Valid as Corydoras leucomelas Eigenmann & Allen 1942 -- (Nijssen & Isbrücker 1980:198 [ref. 6910], Ortega & Vari 1986:16 [ref. 9708], Burgess 1989:366 [ref. 12860], Grant 1998:43 [ref. 23454], Isbrücker 2001:228 [ref. 26805], Reis in Reis et al. 2003:299 [ref. 27061], Ferraris 2007:119 [ref. 29155], Barriga Salazar 2014:111 [ref. 35745], Sarmiento et al. 2014:190 [ref. 35004], DoNascimiento et al. 2017:73 [ref. 35633], Meza-Vargas et al. 2021:25 [ref. 39298], Chuctaya et al. 2022:37 [ref. 42137]). •Valid as Hoplisoma leucomelas (Eigenmann & Allen 1942) -- (Dias et al. 2024:26 [ref. 41219]). Current status: Valid as Hoplisoma leucomelas (Eigenmann & Allen 1942). Callichthyidae: Corydoradinae. Distribution: South America: upper Amazon River basin (Bolivia, Colombia, Ecuador and Peru). Habitat: freshwater.

longipinnis, Corydoras Knaack [J.] 2007:36, Figs. 1-28, 31-39 [Vertebrate Zoology v. 57 (no. 1); ref. 29221] Río Dulce, some 20 kilometers downstream from Termas de Río Hondo, Santiago del Estero Province, Argentina, about 27°29'29"S, 64°41'58"W. Holotype: AI 221. Paratypes: AI 222 (1); MTDF 30765 (1), 30766 (1); ZMA 123751 (1), 123752 (1); ZMB 33766 (1), 33767 (1). Plus 62 uncataloged specimens and 114 non-type specimens. See Koerber 2007:1 [ref. 29269] for correction of the type locality. See Tencatt et al. 2016:[10] [ref. 34388] for comments on the type material. •Valid as Corydoras longipinnis Knaack 2007 -- (Koerber 2007:1 [ref. 29269], Calviño & Alonso 2010:199 [ref. 30829], Koerber 2011:5 [ref. 31122], Tencatt et al. 2014:78 [ref. 33230], Tencatt et al. 2014:91 [ref. 33232], Koerber 2014:8 [ref. 33621], Mirande & Koerber 2015:40 [ref. 35117], Tencatt & Pavanelli 2015:294 [ref. 35434], Tencatt & Ohara 2016:[13] [ref. 34353], Tencatt & Evers 2016:[11] [ref. 34387], Tencatt et al. 2016:[17] [ref. 34388], Bertaco et al. 2016:416 [ref. 34561], Nión et al. 2016:31 [ref. 35565], Grant 2018:26 [ref. 36057], Koerber et al. 2020:5 [ref. 37480], dos Reis et al. 2020:464 [ref. 38364], Koerber et al. 2021:6 [ref. 38894], Giora & Wingert 2023:61 [ref. 41026], Koerber et al. 2023:6 [ref. 40355], Loureiro et al. 2023:94 [ref. 40506]). •Valid as 'Hoplisoma' longipinne (Knaack 2007) -- (Alonso et al. 2024:12 [ref. 41682]). •Valid as Hoplisoma longipinne (Knaack 2007) -- (Dias et al. 2024:26 [ref. 41219] as longipinnis, Koerber et al. 2024:4 [ref. 41721]). Current status: Valid as Hoplisoma longipinne (Knaack 2007). Callichthyidae: Corydoradinae. Distribution: South America: Dulce River basin (Argentina), and lower rio Paraná (Brazil and Uruguay). Habitat: freshwater.

loretoensis, Corydoras Nijssen [H.] & Isbrücker [I. J. H.] 1986:68, Figs. 4-5, 33A [Revue française d'Aquariologie Herpétologie v. 12 (no. 3) [for 1985]; ref. 8061] Right bank of Río Nanay, Loreto, Maynas Province, Peru. Holotype: NRM 26079. Paratypes: ANSP 121620 (32); NRM 28562 (67), 28591 (12); ZMA 119192 (10). Type catalog: Ferraris 2007:119 [ref. 29155]. •Valid as Corydoras loretoensis Nijssen & Isbrücker 1986 -- (Burgess 1989:366 [ref. 12860], Isbrücker 2001:228 [ref. 26805], Reis in Reis et al. 2003:299 [ref. 27061], Britto & Lima 2003:89 [ref. 27314], Ferraris 2007:119 [ref. 29155], Barriga Salazar 2014:111 [ref. 35745], Espíndola et al. 2018:[18] [ref. 35899], Meza-Vargas et al. 2021:25 [ref. 39298]). •Valid as Hoplisoma loretoense (Nijssen & Isbrücker 1986) -- (Dias et al. 2024:26 [ref. 41219] as loretoensis). Current status: Valid as Hoplisoma loretoense (Nijssen & Isbrücker 1986). Callichthyidae: Corydoradinae. Distribution: South America: upper Amazon River basin (Peru and Ecuador). Habitat: freshwater.

loxozonus, Corydoras Nijssen [H.] & Isbrücker [I. J. H.] 1983:67, Fig. 12 [Beaufortia v. 33 (no. 5); ref. 8293] Meta, Lomalinda near Río Ariari, tributary to Río Guaviare, southeast of Villavicencio, Colombia. Holotype (unique): ANSP 150170. Type catalog: Ferraris 2007:119 [ref. 29155]. •Valid as Corydoras loxozonus Nijssen & Isbrücker 1983 -- (Burgess 1989:366 [ref. 12860], Isbrücker 2001:228 [ref. 26805], Reis in Reis et al. 2003:299 [ref. 27061], Ferraris 2007:119 [ref. 29155], DoNascimiento et al. 2017:73 [ref. 35633]). •Valid as Hoplisoma loxozonum (Nijssen & Isbrücker 1983) -- (Dias et al. 2024:26 [ref. 41219]). Current status: Valid as Hoplisoma loxozonum (Nijssen & Isbrücker 1983). Callichthyidae: Corydoradinae. Distribution: South America: Meta River basin, Colombia. Habitat: freshwater.

lymnades, Corydoras Tencatt [L. F. C.], Vera-Alcaraz [H. S.], Britto [M. R.] & Pavanelli [C. S.] 2013:258, Figs. 1, 2a, 3, 4 [Neotropical Ichthyology v. 11 (no. 2); ref. 32752] Minas Gerais, Guada-Mor, rio Guarda-Mor, rio São Francisco basin, 17°46'18"S, 47°05'43"W, Brazil. Holotype: MNRJ 40186. Paratypes: Many at MCP, MNRJ, NUP. Type catalog: Oliveira et al. 2022:12 [ref. 39255]. •Valid as Corydoras lymnades Tencatt, Vera-Alcaraz, Britto & Pavanelli 2013 -- (Tencatt & Pavanelli 2015:294 [ref. 35434], Tencatt & Ohara 2016:[13] [ref. 34353], Tencatt & Evers 2016:[11] [ref. 34387], Tencatt et al. 2016:[17] [ref. 34388], Silva et al. 2020:10 [ref. 37809]). •Valid as Hoplisoma lymnades (Tencatt, Vera-Alcaraz, Britto & Pavanelli 2013) -- (Dias et al. 2024:26 [ref. 41219]). Current status: Valid as Hoplisoma lymnades (Tencatt, Vera-Alcaraz, Britto & Pavanelli 2013). Callichthyidae: Corydoradinae. Distribution: South America: Rio São Francisco basin (Brazil). Habitat: freshwater.

maculatus, Corydoras Steindachner [F.] 1879:32 [Anzeiger der Kaiserlichen Akademie der Wissenschaften, Wien, Mathematisch-Naturwissenschaftliche Classe v. 16 (no. 4); ref. 20480] La Plata [river], Argentina. Type catalog: Ferraris 2007:122 [ref. 29155]. No types known, and species not included in subsequent detailed work (Steindachner 1879 [ref. 4228]), but may be referable to Corydoras marmoratus found in main work [ref. 4228] but not abstract [ref. 20480]. Original entry as "Corydoras maculatus Steind. = Coryd. (Callichthys) punctatus Valenc. partim, nec. Bloch.". Probably later described as "Corydoras marmoratus n. sp.? (an. Coryd. punctatus sp. Bloch, var. argentina Steind.)". See also Nijssen & Isbrücker 1980:204 [ref. 6910], Grant 2018:28 [ref. 36057]. •Doubtful species -- (Isbrücker 2001:229 [ref. 26805]). •Synonym of Corydoras paleatus (Jenyns 1842) -- (Nijssen & Isbrücker 1980:204 [ref. 6910], Reis in Reis et al. 2003:301 [ref. 27061], Ferraris 2007:122 [ref. 29155], Litz & Koerber 2014:23 [ref. 33622], Grant 2018:26 [ref. 36057]). •Not a synonym of Corydoras paleatus (Jenyns 1842) -- (Tencatt et al. 2016:[10] [ref. 34388]). Replacement Name. Current status: Synonym of Hoplisoma paleatum (Jenyns 1842). Callichthyidae: Corydoradinae. Habitat: freshwater.

marmoratus, Corydoras Steindachner [F.] 1879:26, Pl. 5 (fig. 1) [Denkschriften der Kaiserlichen Akademie der Wissenschaften in Wien, Mathematisch-Naturwissenschaftliche Classe. v. 41; ref. 4228] Buenos Aires, Argentina. Lectotype: NMW 5538 [ex NMW 47258]. Paralectotypes: NMW 47258 (2), 46775-77 (2, 1, 2); ZMA 110477-78 (1, 1). Type catalog: Nijssen et al. 1982:46 [ref. 19236], Ferraris 2007:122 [ref. 29155]. See Tencatt et al. 2016:[10] [ref. 34388] for comments on the type material. Species not included in earlier abstract [ref. 20480]. Originally described as "Corydoras marmoratus n. sp.? (an. Coryd. punctatus sp. Bloch, var. argentina Steind.)"; may correspond to Corydoras maculatus of abstract. See also Grant 2018:28 [ref. 36057]. Lectotype selected by Nijssen & Isbrücker 1980:204 [ref. 6910]. •Status uncertain -- (Isbrücker 2001:229 [ref. 26805]). •Synonym of Corydoras paleatus (Jenyns 1842) -- (Nijssen & Isbrücker 1980:204 [ref. 6910], Reis in Reis et al. 2003:301 [ref. 27061], Ferraris 2007:122 [ref. 29155], Litz & Koerber 2014:23 [ref. 33622], Mirande & Koerber 2015:40 [ref. 35117], Tencatt et al. 2016:[3] [ref. 34388], Grant 2018:28 [ref. 36057]). •Synonym of Hoplisoma paleatum (Jenyns 1842) -- (Tencatt et al. 2025:6 [ref. 42519]). Current status: Synonym of Hoplisoma paleatum (Jenyns 1842). Callichthyidae: Corydoradinae. Habitat: freshwater.

melanistius, Corydoras Regan [C. T.] 1912:216 [Annals and Magazine of Natural History (Series 8) v. 10 (no. 56); ref. 14865] Essequibo River, Guyana. Lectotype: BMNH 1864.1.21.86. Paralectotypes: BMNH 1864.1.21.87 (1). Type catalog: Ferraris 2007:120 [ref. 29155]. Lectotype selected by Nijssen & Isbrücker 1967:32 [ref. 7981]. •Valid as Corydoras melanistius Regan 1912 -- (Ovchynnyk 1967:37 [ref. 37559], Nijssen & Isbrücker 1980:197 [ref. 6910], Burgess 1989:366 [ref. 12860], Isbrücker 2001:229 [ref. 26805], Reis in Reis et al. 2003:299 [ref. 27061], Ferraris 2007:120 [ref. 29155], Tencatt & Pavanelli 2015:294 [ref. 35434], Tencatt & Ohara 2016:[13] [ref. 34353], Tencatt & Evers 2016:[11] [ref. 34387], Tencatt et al. 2016:[17] [ref. 34388], Ottoni et al. 2016:133 [ref. 34756], DoNascimiento et al. 2017:73 [ref. 35633], Taphorn et al. 2022:45 [ref. 41297], Tencatt et al. 2023:20 [ref. 40562]). •Valid as Hoplisoma melanistium (Regan 1912) -- (Dias et al. 2024:27 [ref. 41219]). Current status: Valid as Hoplisoma melanistium (Regan 1912). Callichthyidae: Corydoradinae. Distribution: South America: coastal rivers (Colombia, French Guiana, Guyana, Suriname, ?Venezuela). Habitat: freshwater.

melini, Corydoras Lönnberg [E.] & Rendahl [H.] 1930:1, Fig. 1 [Arkiv för Zoologi v. 22 A (no. 5); ref. 16300] Iuaretê (0°35'N, 69°13'W) at confluence of Rio Papurí and Rio Uaupés, Rio Negro system, Amazonas, Brazil. Lectotype: NRM 11091. Paralectotypes: NRM 10142 (4). Type catalog: Ferraris 2007:120 [ref. 29155]. Lectotype selected by Nijssen & Isbrücker 1980:209 [ref. 6910]. •Valid as Corydoras melini Lönnberg & Rendahl 1930 -- (Ovchynnyk 1967:37 [ref. 37559], Nijssen & Isbrücker 1980:209 [ref. 6910], Burgess 1989:366 [ref. 12860], Isbrücker 2001:229 [ref. 26805], Reis in Reis et al. 2003:300 [ref. 27061], Britto & Lima 2003:89 [ref. 27314], Ferraris 2007:120 [ref. 29155], Barriga Salazar 2014:111 [ref. 35745], Tencatt & Ohara 2016:[13] [ref. 34353], Tencatt et al. 2016:[17] [ref. 34388], DoNascimiento et al. 2017:73 [ref. 35633], Meza-Vargas et al. 2021:25 [ref. 39298]). •Valid as Hoplisoma melini (Lönnberg & Rendahl 1930) -- (Dias et al. 2024:27 [ref. 41219]). Current status: Valid as Hoplisoma melini (Lönnberg & Rendahl 1930). Callichthyidae: Corydoradinae. Distribution: South America: Brazil, Colombia, Ecuador and Peru. Habitat: freshwater.

meridionalis, Corydoras Ihering [R. von] 1911:380 [Revista do Museo Paulista, São Paulo v. 8 (1910); ref. 14822] Colonia Hansa [now Corupá], near Jaraguá do Sul, Jaraguá river basin, ca 26°21'S, 48°29'W, Santa Catharina State, Brazil. Lectotype: MZUSP 426. Paralectotypes: MZUSP 140670 (2). Type catalog: Britski 1969:200 [ref. 12401], Nijssen & Isbrücker 1980:205 [ref. 6910], Ferraris 2007:116 [ref. 29155]. Lectotype selected by Britski & Mendonça 2010:92 [ref. 30773]. •Synonym of Corydoras ehrhardti Steindachner 1910 -- (Nijssen & Isbrücker 1980:204 [ref. 6910], Isbrücker 2001:224 [ref. 26805], Reis in Reis et al. 2003:297 [ref. 27061], Ferraris 2007:116 [ref. 29155], Britski & Mendonça 2010:91 [ref. 30773], Koerber et al. 2015:3 [ref. 35179], Koerber et al. 2017:6 [ref. 35083], Koerber et al. 2017:7 [ref. 35632]). •Synonym of Hoplisoma ehrhardti (Steindachner 1910). Current status: Synonym of Hoplisoma ehrhardti (Steindachner 1910). Callichthyidae: Corydoradinae. Habitat: freshwater.

metae, Corydoras Eigenmann [C. H.] 1914:230 [Indiana University Studies v. 2 (no. 23); ref. 11065] Barrigona [Berrigón], Río Meta, Colombia. Holotype (unique): CAS 36447 [ex IU 13451]. Type catalog: Ferraris 2007:120 [ref. 29155]. Holotype is figured in Eigenmann 1916: Pl. 14 [ref. 1233]. •Valid as Corydoras metae Eigenmann 1914 -- (Nijssen & Isbrücker 1980:208 [ref. 6910], Burgess 1989:366 [ref. 12860], Isbrücker 2001:230 [ref. 26805], Reis in Reis et al. 2003:300 [ref. 27061], Ferraris 2007:120 [ref. 29155], DoNascimiento et al. 2017:73 [ref. 35633]). •Valid as Hoplisoma metae (Eigenmann 1914) -- (Dias et al. 2024:27 [ref. 41219]). Current status: Valid as Hoplisoma metae (Eigenmann 1914). Callichthyidae: Corydoradinae. Distribution: South America: Meta River basin, Colombia. Habitat: freshwater.

micracanthus, Corydoras Regan [C. T.] 1912:211 [Annals and Magazine of Natural History (Series 8) v. 10 (no. 56); ref. 14865] Salta [Lesser, Bermejo River basin], 24°46'S, 65°28'W, Argentina [probably 24°40'39.50"S, 65°28'32.64"W]. Lectotype: BMNH 1897.1.27.8. Paralectotypes: BMNH 1897.1.27.9-14 (6), ZMA 109951 [ex BMNH 1897.1.27.15] (1). Additional material: BMNH (2) Salta, Argentina. Type catalog: Nijssen et al. 1982:46-47 [ref. 19236], Ferraris 2007:120 [ref. 29155]. Lectotype selected by Nijssen & Isbrücker 1980:206 [ref. 6910]. Information on type locality see Koerber & Terán 2021:140 [ref. 38314]. •Valid as Corydoras micracanthus Regan 1912 -- (Nijssen & Isbrücker 1980:206 [ref. 6910], Burgess 1989:366 [ref. 12860], Isbrücker 2001:230 [ref. 26805], Reis in Reis et al. 2003:300 [ref. 27061], López et al. 2003:42 [ref. 27366], Menni 2004:82 [ref. 28131], Ferraris 2007:120 [ref. 29155], Calviño & Alonso 2010:199, 206 [ref. 30829], Mirande & Koerber 2015:40 [ref. 35117], Ohara et al. 2016:548 [ref. 34772], Koerber & Terán 2021:143 [ref. 38314]). •Valid as Urkumayu micracanthus (Regan 1912) -- (Alonso et al. 2024:4 [ref. 41682], Koerber et al. 2024:4 [ref. 41721]). •Valid as Hoplisoma micracanthus (Regan 1912) -- (Dias et al. 2024:27 [ref. 41219]). Current status: Valid as Hoplisoma micracanthus (Regan 1912). Callichthyidae: Corydoradinae. Distribution: South America: upper Bermejo River basin, Salta Province (Argentina). Habitat: freshwater.

microcephalus, Corydoras Regan [C. T.] 1912:211 [Annals and Magazine of Natural History (Series 8) v. 10 (no. 56); ref. 14865] La Plata, Buenos Aires, Argentina. Lectotype: BMNH 1890.3.12.4. Paralectotypes: BMNH 1890.3.12.5-6 (3). Type catalog: Ferraris 2007:122 [ref. 29155]. Lectotype selected by Nijssen & Isbrücker 1980:204 [ref. 6910]. •Synonym of Corydoras paleatus (Jenyns 1842) -- (Nijssen & Isbrücker 1980:204 [ref. 6910], Reis in Reis et al. 2003:301 [ref. 27061], Ferraris 2007:122 [ref. 29155], Mirande & Koerber 2015:40 [ref. 35117]). •Doubtful species -- (Isbrücker 2001:230 [ref. 26805]). •Valid as Corydoras microcephalus Regan 1912 -- (Knaack 2007:29 [ref. 29220], Tencatt et al. 2016:[10] [ref. 34388]). •Valid as Hoplisoma microcephalum (Regan 1912) -- (Dias et al. 2024:27 [ref. 41219]). •Synonym of Hoplisoma paleatum (Jenyns 1842) -- (Tencatt et al. 2025:6 [ref. 42519]). Current status: Synonym of Hoplisoma paleatum (Jenyns 1842). Callichthyidae: Corydoradinae. Habitat: freshwater.

multimaculatus, Corydoras Steindachner [F.] 1907:291 [Anzeiger der Kaiserlichen Akademie der Wissenschaften, Wien, Mathematisch-Naturwissenschaftliche Klasse v. 44 (no. 17) (for 4 July 1907); ref. 18799] Tributary of Rio Prêto near Santa Rita de Cassia, about 11°00'S, 44°30'W, Bahia Province, Brazil. Lectotype: NMW 46783. Paralectotypes: NMW 46781-82 (19, 17), 46784 (3); ZMA 110479 [ex NMW 46784] (8). Type catalog: Nijssen et al. 1982:47 [ref. 19236], Ferraris 2007:120 [ref. 29155]. Lectotype selected by Nijssen & Isbrücker 1980:196 [ref. 6910]. •Valid as Corydoras multimaculatus Steindachner 1907 -- (Nijssen & Isbrücker 1980:196 [ref. 6910], Isbrücker & Nijssen 1992:13 [ref. 20559], Burgess 1989:366 [ref. 12860], Isbrücker 2001:230 [ref. 26805], Reis in Reis et al. 2003:300 [ref. 27061], Ferraris 2007:120 [ref. 29155], Tencatt et al. 2013:262 [ref. 32752], Espíndola et al. 2014:26 [ref. 33269], Tencatt & Pavanelli 2015:294 [ref. 35434], Tencatt & Ohara 2016:[13] [ref. 34353], Tencatt & Evers 2016:[11] [ref. 34387], Tencatt et al. 2016:[17] [ref. 34388], Silva et al. 2020:10 [ref. 37809]). •Valid as Hoplisoma multimaculatum (Steindachner 1907) -- (Dias et al. 2024:27 [ref. 41219]). Current status: Valid as Hoplisoma multimaculatum (Steindachner 1907). Callichthyidae: Corydoradinae. Distribution: South America: Preto River basin (Bahia State, Brazil). Habitat: freshwater.

nattereri, Corydoras Steindachner [F.] 1876:143 [95], Pl. 11 (fig. 1) [Sitzungsberichte der Kaiserlichen Akademie der Wissenschaften. Mathematisch-Naturwissenschaftliche Classe v. 74 (1. Abth.); ref. 4225] Affluent of Rio Parahyba, 3 miles up, Rio de Janeiro, Brazil. Neotype: MCZ 8229. Type catalog: Ferraris 2007:121 [ref. 29155]. On p. 95 of separate. Type from river basin of Parahyba or Jequitinhonha in the neighborhood of Rio de Janeiro is lost; neotype designated by Nijssen & Isbrücker 1980:3 [ref. 8681]. •Valid as Corydoras nattereri Steindachner 1876 -- (Nijssen & Isbrücker 1980:204 [ref. 6910], Burgess 1989:366 [ref. 12860], Britto et al. 2002:735 [ref. 26546], Isbrücker 2001:230 [ref. 26805], Reis in Reis et al. 2003:300 [ref. 27061] dated 1877, Shimabukuro-Dias et al. 2004:141 [ref. 27796], Knaack 2007:43 [ref. 29221], Ferraris 2007:121 [ref. 29155], Tencatt et al. 2014:91 [ref. 33232], Sarmiento et al. 2014:190 [ref. 35004], Tencatt & Pavanelli 2015:294 [ref. 35434], Tencatt & Ohara 2016:[13] [ref. 34353], Tencatt & Evers 2016:[11] [ref. 34387], Tencatt et al. 2016:[17] [ref. 34388], Ottoni et al. 2016:133 [ref. 34756], Lima & Sazima 2017:30 [ref. 35111], Silva et al. 2020:10 [ref. 37809], Vieira-Guimarães et al. 2024:43 [ref. 41258]). •Valid as Hoplisoma nattereri (Steindachner 1876) -- (Dias et al. 2024:27 [ref. 41219]). •Valid as 'Hoplisoma' nattereri (Steindachner 1876) -- (Alonso et al. 2024:12 [ref. 41682]). Current status: Valid as Hoplisoma nattereri (Steindachner 1876). Callichthyidae: Corydoradinae. Distribution: South America: coastal rivers, Espirito Santo to Paraná (eastern Brazil). Habitat: freshwater.

noxium, Hoplisoma Tencatt [L. F. C.], Ohara [W. M.], Carvalho [V.], Grant [S.] & Britto [M.] 2025:6, Figs. 1-3A, 4-14, 17-18 [Neotropical Ichthyology v. 23 (no. 1): e240100; ref. 42064] Igarapé do Buriti (locally known as igarapé Sonrizal), rio Tapajós basin, Jacareacanga, Pará, Brazil, approximately 06°13'S, 57°55'W. Holotype: MNRJ 55759. Paratypes: CITL, CPUFMT, INPA, MNRJ, NUP. •Valid as Hoplisoma noxium Tencatt, Ohara, Carvalho, Grant & Britto 2025. Current status: Valid as Hoplisoma noxium Tencatt, Ohara, Carvalho, Grant & Britto 2025. Callichthyidae: Corydoradinae. Distribution: South America: Tapajós River drainage, Amazon basin, Pará State, Brazil. Habitat: freshwater.

oelemariensis, Corydoras Nijssen [H.] 1970:29, Fig. 14 [Beaufortia v. 18 (no. 230); ref. 7452] Creek at left bank of Oelemari River, near airstrip, Marowijne, Suriname. Holotype: IRSNB 472. Paratypes: BMNH 1971.1.6.1-2 (2), CAS 14502 [ex ZMA 108.111] (2), IRSNB 473 (orig. 82, now 42), MZUSP [ex IRSNB 473] (40), SMF 12099 (2); USNM 204221 (2); ZMA 108111 (82). Type catalog: Nijssen et al. 1982:48 [ref. 19236], Walschaerts 1987:19 [ref. 20755], Ferraris & Vari 1992:14 [ref. 19771]. •Synonym of Corydoras baderi Geisler 1969 -- (Nijssen & Isbrücker 1980:212 [ref. 6910], Le Bail et al. 2000:190 [ref. 24549], Isbrücker 2001:221 [ref. 26805], Reis in Reis et al. 2003:295 [ref. 27061]). •Synonym of Hoplisoma baderi (Geisler 1969). Current status: Synonym of Hoplisoma baderi (Geisler 1969). Callichthyidae: Corydoradinae. Habitat: freshwater.

oiapoquensis, Corydoras Nijssen [H.] 1972:425, Fig. 7 [Netherlands Journal of Zoology v. 21 (no. 4); ref. 673] Cumuri Creek at left bank of Oyapock River, French Guiana. Holotype: IRSNB 489. Paratypes: IRSNB 490 (orig. 17, now 9), 491 (1), 493 (orig. 27, now 12), 495 (orig. 22, now 10), 496 (orig. 51, now 29); MZUSP [ex IRSNB 490] (8), [ex IRSNB 493] (15), [ex IRSNB 495] (12), [ex IRSNB 496] (28); USNM 205869 [not 205868] (2); ZMA 110589-94 (10, 2, 4, 12, 8, 6). Type catalog: Nijssen et al. 1982:48 [ref. 19236], Walschaerts 1987:19 [ref. 20755], Ferraris & Vari 1992:14 [ref. 19771], Ferraris 2007:121 [ref. 29155]. Some types are also paratypes of Corydoras condiscipulus. •Valid as Corydoras oiapoquensis Nijssen 1972 -- (Nijssen & Isbrücker 1980:212 [ref. 6910], Burgess 1989:366 [ref. 12860], Le Bail et al. 2000:204 [ref. 24549], Isbrücker 2001:231 [ref. 26805], Reis in Reis et al. 2003:300 [ref. 27061], Ferraris 2007:121 [ref. 29155]). •Valid as Hoplisoma oiapoquense (Nijssen 1972) -- (Dias et al. 2024:27 [ref. 41219] as oiapoquensis). Current status: Valid as Hoplisoma oiapoquense (Nijssen 1972). Callichthyidae: Corydoradinae. Distribution: South America: Oyapock River basin, Brazil and French Guiana. Habitat: freshwater.

ortegai, Corydoras Britto [M. R.], Lima [F. C. T.] & Hidalgo [M. H.] 2007:294, Figs. 1-3 [Neotropical Ichthyology v. 5 (no. 3); ref. 29283] Río Putumayo basin, Quebrada Coronel Díaz, tributary to río Yaguas, 2°51'13"S, 71°27'02" W, Province Maynas, Dept. Loreto, Peru. Holotype: MUSM 28000. Paratypes: FMNH 117263 (8); MNRJ 29404 (8, 3 c&s); MUSM 26961 (23), 27154 (27), 27155 (28); MZUSP 91411 (8). •Valid as Corydoras ortegai Britto, Lima & Hidalgo 2007 -- (Meza-Vargas et al. 2021:25 [ref. 39298]). •Valid as Hoplisoma ortegai (Britto, Lima & Hidalgo 2007) -- (Dias et al. 2024:27 [ref. 41219]). Current status: Valid as Hoplisoma ortegai (Britto, Lima & Hidalgo 2007). Callichthyidae: Corydoradinae. Distribution: South America: Putumayo River basin (Peru). Habitat: freshwater.

osteocarus, Corydoras Böhlke [J. E.] 1951:824 [Annals and Magazine of Natural History (Series 12) v. 4 (no. 44); ref. 12428] San Fernando de Atabapo, 4°03'N, 67°45'W, where Río Atabapo empties into Río Orinoco, Amazonas, Venezuela. Holotype: CAS-SU 16333. Paratypes: CAS 20563 (4), CAS-SU 16334 (3), USNM 157367 [ex CAS-SU 16334] (1). Type catalog: Böhlke 1953:45 [ref. 12291], Ferraris & Vari 1992:14 [ref. 19771], Ferraris 2007:121 [ref. 29155]. The specific epithet (bony head) is treated as an indeclinable noun. •Valid as Corydoras osteocarus Böhlke 1951 -- (Nijssen & Isbrücker 1980:211 [ref. 6910], Isbrücker & Nijssen 1992:13 [ref. 20559], Burgess 1989:366 [ref. 12860], Isbrücker 2001:231 [ref. 26805], Reis in Reis et al. 2003:301 [ref. 27061], Ferraris 2007:121 [ref. 29155], DoNascimiento et al. 2017:73 [ref. 35633], Espíndola et al. 2018:[18] [ref. 35899]). •Valid as Hoplisoma osteocarus (Böhlke 1951) -- (Dias et al. 2024:27 [ref. 41219] as osteocarum). Current status: Valid as Hoplisoma osteocarus (Böhlke 1951). Callichthyidae: Corydoradinae. Distribution: South America: Orinoco River basin and coastal rivers of Suriname, Colombia, Suriname and Venezuela. Habitat: freshwater.

osvaldoi, Hoplisoma Alonso [F.], Terán [G. E.], Aguilera [G.], Montes [M. M.], Serra Alanís [W. S.], Calviño [P.], Vera-Alcaraz [H. S.], Cardoso [Y.], Koerber [S.] & Mirande [J. M.] 2024:4, Figs. 1-2, 4-5, 8 [Zoologischer Anzeiger v. 314; ref. 41682] Blanco River, Bermejo River basin, El Oculto, Orán department, Salta Province, Argentina, −23.121583S, −64.494605W. Holotype: IBIGEO-I 485. Paratypes: CI-FML, IBIGEO, MACN, MHNM, MNHNP, MNRJ. •Valid as 'Hoplisoma' osvaldoi Alonso, Terán, Aguilera, Montes, Serra Alanís, Calviño, Vera-Alcaraz, Cardoso, Koerber & Mirande 2024 -- (Alonso et al. 2024:12 [ref. 41682]). •Valid as Hoplisoma osvaldoi Alonso, Terán, Aguilera, Montes, Serra Alanís, Calviño, Vera-Alcaraz, Cardoso, Koerber & Mirande 2024 -- (Koerber et al. 2024:4 [ref. 41721]). •Synonym of Hoplisoma paleatum (Jenyns 1841) -- (Tencatt et al. 2025:23 [ref. 42519] with question). Current status: Valid as Hoplisoma osvaldoi Alonso, Terán, Aguilera, Montes, Serra Alanís, Calviño, Vera-Alcaraz, Cardoso, Koerber & Mirande 2024. Callichthyidae: Corydoradinae. Distribution: South America: Blanco River drainage, upper Bermejo River basin, Salta Province (Argentina). Habitat: freshwater.

paleatus, Callichthys Jenyns [L.] 1842:113 [The zoology of the voyage of H. M. S. Beagle; ref. 2344] Laguna del Potrero, Maldonado, Uruguay, 34°50'28"S, 55°08'43"W. Lectotype: BMNH 1917.7.14.18 [ex Cambridge Mus.]. Paralectotypes: BMNH 1917.7.14.19 and 19a [ex Cambridge Mus.] (2) South America. Type catalog: Ferraris 2007:122 [ref. 29155]. Lectotype selected by Nijssen & Isbrücker 1980:204 [ref. 6910]. But Knaack 2007:23 [ref. 29220] regarded BMNH 1917.1.14.18 as not the lectotype, finding the lectotype to be lost; he selected BMNH 1917.7.14.19 as the neotype (following Art. 75). Knaack 2008:15 [ref. 29618] retracted his neotype designation and supported the lectotype designation by Nijssen & Isbrücker. Callichthys punctatus Valenciennes 1834 is the senior synonym of C. paleatus Jenyns 1842, but C. paleatus is a nomen protectum when in Corydoras due to secondary homonymy of C. punctatus (see Grant 2018:26 [ref. 36057]). Comments on type locality by Calvino 2020:60 [ref. 38040]. •Valid as Corydoras paleatus (Jenyns 1842) -- (Nijssen & Isbrücker 1980:204 [ref. 6910], Malabarba 1989:147 [ref. 14217], Burgess 1989:366 [ref. 12860], Gómez & Chebez 1996:62 [ref. 23791], Haro et al. 1996:6 [ref. 25004], Sverlij et al. 1998:64 [ref. 27632], Britski et al. 1999:126 [ref. 24147], Britto et al. 2002:735 [ref. 26546], Isbrücker 2001:232 [ref. 26805], Reis in Reis et al. 2003:301 [ref. 27061], López et al. 2003:43 [ref. 27366], Axenrot & Kullander 2003:265 [ref. 27393], Britto & Lima 2003:89 [ref. 27314], Shimabukuro-Dias et al. 2004:141 [ref. 27796], Menni 2004:82 [ref. 28131], Knaack 2007:23 [ref. 29220], Knaack 2007:23 [ref. 29220], Knaack 2007:36 [ref. 29221], Ferraris 2007:122 [ref. 29155], Calviño & Alonso 2010:200 [ref. 30829], Mabragaña et al. 2011:table S2 [ref. 31800], Tencatt et al. 2014:78 [ref. 33230], Tencatt et al. 2014:91 [ref. 33232], Fabiano et al. 2014:8 [ref. 33530], Litz & Koerber 2014:23 [ref. 33622], Sarmiento et al. 2014:190 [ref. 35004], Mirande & Koerber 2015:40 [ref. 35117], Tencatt & Pavanelli 2015:294 [ref. 35434], Tencatt & Ohara 2016:[13] [ref. 34353], Tencatt & Evers 2016:[11] [ref. 34387], Tencatt et al. 2016:[3] [ref. 34388], Ottoni et al. 2016:133 [ref. 34756], Bertaco et al. 2016:416 [ref. 34561], Koerber & Litz 2016:5 [ref. 35098], Nión et al. 2016:31 [ref. 35565], Koerber et al. 2017:6 [ref. 35083], Koerber et al. 2017:7 [ref. 35632], Grant 2018:26 [ref. 36057], Koerber et al. 2019:7 [ref. 36736], Calvino 2020:60 [ref. 38040], Koerber et al. 2020:5 [ref. 37480], Lima & Britto 2020:528 [ref. 37324], Koerber et al. 2021:6 [ref. 38894], Giora & Wingert 2023:62 [ref. 41026], Koerber et al. 2023:6 [ref. 40355], Loureiro et al. 2023:94 [ref. 40506]). •Valid as 'Hoplisoma' paleatum (Jenyns 1842) -- (Alonso et al. 2024:12 [ref. 41682]). •Valid as Hoplisoma paleatum (Jenyns 1842) -- (Dias et al. 2024:27 [ref. 41219] as paleatus, Koerber et al. 2024:4 [ref. 41721], Tencatt et al. 2025:6 [ref. 42519]). Current status: Valid as Hoplisoma paleatum (Jenyns 1842). Callichthyidae: Corydoradinae. Distribution: South America: lower Paraná River basin and coastal rivers (southern Brazil, Bolivia, Uruguay and Argentina). Habitat: freshwater.

panda, Corydoras Nijssen [H.] & Isbrücker [I. J. H.] 1971:186, Fig. 2 [Beaufortia v. 18 (no. 239); ref. 7697] Aquas Amarillas, tributary of Río Pachitea, Río Ucayali system, Huanuco State, Peru. Holotype: BMNH 1969.7.15.8. Paratypes: BMNH 1969.7.15.9 (1), ZMA 110604 [ex BMNH 1969.7.15.10] (1). Type catalog: Nijssen et al. 1982:49 [ref. 19236], Ferraris 2007:122 [ref. 29155]. •Valid as Corydoras panda Nijssen & Isbrücker 1971 -- (Nijssen & Isbrücker 1980:212 [ref. 6910], Ortega & Vari 1986:16 [ref. 9708], Burgess 1989:367 [ref. 12860], Isbrücker 2001:232 [ref. 26805], Reis in Reis et al. 2003:301 [ref. 27061], Britto et al. 2007:294 [ref. 29283], Ferraris 2007:122 [ref. 29155], Tencatt et al. 2013:258 [ref. 32752], Barriga Salazar 2014:111 [ref. 35745], Tencatt & Pavanelli 2015:294 [ref. 35434], Tencatt & Evers 2016:[11] [ref. 34387], Tencatt & Ohara 2016:[13] [ref. 34353], Tencatt et al. 2016:[17] [ref. 34388], Chuctaya et al. 2022:37 [ref. 42137]). •Valid as Hoplisoma panda (Nijssen & Isbrücker 1971) -- (Dias et al. 2024:27 [ref. 41219]). Current status: Valid as Hoplisoma panda (Nijssen & Isbrücker 1971). Callichthyidae: Corydoradinae. Distribution: South America: upper Amazon River basin (Peru and Ecuador). Habitat: freshwater.

paragua, Corydoras Knaack [J.] 2004:65, Figs. 6-12 [Zoologische Abhandlungen; Staatliches Museum für Tierkunde in Dresden v. 54; ref. 27989] Río Paragua, northwestern bank, river mouth area, río Itenez system, Provincia J.M. Velasco, Departamento Santa Cruz, Bolivia, 13°31.842'S, 61°90.015'W. Holotype: MTD F 28468. Paratypes: CAS uncat. (2); CIRA-UTB 1081 (2); CJK uncat. (251); MTD F 28469 (1); ZMA 123.1000.734 (1), 123.1000.735 (1); ZMB 33530 (1), 33531 (1). Type catalog: Ferraris 2007:122 [ref. 29155]. •Valid as Corydoras paragua Knaack 2004 -- (Ferraris 2007:122 [ref. 29155], Sarmiento et al. 2014:190 [ref. 35004], Tencatt & Ohara 2016:[12] [ref. 34353]). •Valid as Hoplisoma paragua (Knaack 2004) -- (Dias et al. 2024:27 [ref. 41219]). Current status: Valid as Hoplisoma paragua (Knaack 2004). Callichthyidae: Corydoradinae. Distribution: South America: Itenez River drainage, western Amazon basin, Bolivia. Habitat: freshwater.

parallelus, Corydoras Burgess [W. E.] 1993:154, Figs. [Tropical Fish Hobbyist v. 41 (no. 12) (issue no. 450); ref. 20758] Rio Içana, Rio Negro drainage, Brazil. Holotype: MZUSP 45716. Paratypes: USNM 326187 (16). Type catalog: Ferraris 2007:122 [ref. 29155]. •Valid as Corydoras parallelus Burgess 1993 -- (Burgess & Finley 1996:168 [ref. 22901], Isbrücker 2001:232 [ref. 26805], Reis in Reis et al. 2003:301 [ref. 27061], Britto & Lima 2003:89 [ref. 27314], Ferraris 2007:122 [ref. 29155], Tencatt & Ohara 2016:[13] [ref. 34353], Tencatt & Evers 2016:[11] [ref. 34387], Tencatt et al. 2016:[17] [ref. 34388]). •Valid as Hoplisoma parallelum (Burgess 1993) -- (Dias et al. 2024:27 [ref. 41219]). Current status: Valid as Hoplisoma parallelum (Burgess 1993). Callichthyidae: Corydoradinae. Distribution: South America: upper Negro River basin, Brazil. Habitat: freshwater.

pavanelliae, Corydoras Tencatt [L. F. C.] & Ohara [W. M.] 2016:[8], Figs. 2c, 2d, 3b, 3d, 6 [Neotropical Ichthyology v. 14 (no. 1) e150063; ref. 34353] Mato Grosso State, Colniza Municipality, Guariba District, tributary to the rio Guariba, rio Aripuanã drainage, rio Madeira basin, Brazil, 9°06'47.4"S, 60°25'14.1"W. Holotype: MNRJ 43317. Paratypes: INPA, MCP, MZUSP, NUP, ZUFMS-PIS. Type catalog: Oliveira et al. 2022:12 [ref. 39255]. •Valid as Corydoras pavanelliae Tencatt & Ohara 2016 -- (Ohara et al. 2016:550 [ref. 34772]). •Valid as Hoplisoma pavanelliae (Tencatt & Ohara 2016) -- (Dias et al. 2024:27 [ref. 41219]). Current status: Valid as Hoplisoma pavanelliae (Tencatt & Ohara 2016). Callichthyidae: Corydoradinae. Distribution: South America: Rio Aripuanã drainage, rio Madeira basin (Brazil). Habitat: freshwater.

petracinii, Corydoras Calviño [P. A.] & Alonso [F.] 2010:204, Fig. 2 [Revista del Museo Argentino de Ciencias Naturales, n.s. v. 11 (no. 2) [for 2009]; ref. 30829] Small stream, 200 meters from its ending into the San Lorenzo River, 24°47'08"S, 65°28'10"W, Finca Las Costas, around Salta city, Argentina, elevation 1222 meters. Holotype: MACN 9233. Paratypes: MCNI 1381 (5). •Valid as Corydoras petracinii Calviño & Alonso 2010 -- (Koerber 2011:5 [ref. 31122], Koerber 2014:8 [ref. 33621], Mirande & Koerber 2015:40 [ref. 35117], Ohara et al. 2016:548 [ref. 34772]). •Valid as Urkumayu petracinii (Calviño & Alonso 2010) -- (Alonso et al. 2024:4 [ref. 41682], Koerber et al. 2024:4 [ref. 41721]). •Valid as Hoplisoma petracinii (Calviño & Alonso 2010) -- (Dias et al. 2024:27 [ref. 41219]). Current status: Valid as Hoplisoma petracinii (Calviño & Alonso 2010). Callichthyidae: Corydoradinae. Distribution: South America: San Lorenzo River drainage, upper Juramento River basin, Salta Province (Argentina). Habitat: freshwater.

polystictus, Corydoras Regan [C. T.] 1912:216 [Annals and Magazine of Natural History (Series 8) v. 10 (no. 56); ref. 14865] Upper Rio Paraguay, Descalvados, 16°45'S, 57°40'W, Mato Grosso State, Brazil. Lectotype: BMNH 1895.5.17.62. Paralectotypes: BMNH 1895.5.17.63 (1). Type catalog: Ferraris 2007:123 [ref. 29155]. Lectotype selected by Nijssen & Isbrücker 1980:197 [ref. 6910]. •Valid as Corydoras polystictus Regan 1912 -- (Nijssen & Isbrücker 1980:197 [ref. 6910], Burgess 1989:367 [ref. 12860], Isbrücker & Nijssen 1992:13 [ref. 20559], Britski et al. 1999:126 [ref. 24147], Isbrücker 2001:233 [ref. 26805], Reis in Reis et al. 2003:301 [ref. 27061], López et al. 2003:43 [ref. 27366], Menni 2004:82 [ref. 28131], Ferraris 2007:123 [ref. 29155], Calviño & Alonso 2010:200 [ref. 30829], Espíndola et al. 2014:26 [ref. 33269], Sarmiento et al. 2014:190 [ref. 35004], Cardoso et al. 2015:1 [ref. 35092], Mirande & Koerber 2015:40 [ref. 35117], Tencatt & Ohara 2016:[12] [ref. 34353], Ottoni et al. 2016:133 [ref. 34756], Koerber et al. 2017:58 [ref. 35267]). •Valid as Hoplisoma polystictum (Regan 1912) -- (Dias et al. 2024:27 [ref. 41219], Koerber 2024:5 [ref. 41228], Koerber et al. 2024:4 [ref. 41721]). Current status: Valid as Hoplisoma polystictum (Regan 1912). Callichthyidae: Corydoradinae. Distribution: South America: Paraguay River basin (Argentina, Brazil, Paraguay and Bolivia). Habitat: freshwater.

potaroensis, Corydoras Myers [G. S.] 1927:126 [Bulletin of the Museum of Comparative Zoology v. 68 (no. 3); ref. 3096] Creek below Potaro Landing (5°20'N, 59°05'W), Potaro River, Essequibo, Guyana. Lectotype: CAS 24754 [ex IU 11984]. Paralectotypes: CAS 24755 [ex IU 11984] (3), FMNH 53127 [ex CM 1561], MCZ 31576 (1). Type catalog: Ferraris 2007:123 [ref. 29155]. Lectotype selected by Nijssen & Isbrücker 1980:208 [ref. 6910], Ferraris 2007:123 [ref. 29155]. •Valid as Corydoras potaroensis Myers 1927 -- (Nijssen & Isbrücker 1980:208 [ref. 6910], Burgess 1989:367 [ref. 12860], Isbrücker 2001:233 [ref. 26805], Reis in Reis et al. 2003:301 [ref. 27061], Ferraris 2007:123 [ref. 29155], Tencatt & Pavanelli 2015:294 [ref. 35434], Tencatt & Ohara 2016:[13] [ref. 34353], Tencatt & Evers 2016:[11] [ref. 34387], Tencatt et al. 2016:[17] [ref. 34388], Taphorn et al. 2022:45 [ref. 41297]). •Valid as Hoplisoma potaroense (Myers 1927) -- (Dias et al. 2024:27 [ref. 41219] as potaroensis). •Valid as 'Hoplisoma' potaroense (Myers 1927) -- (Alonso et al. 2024:12 [ref. 41682]). Current status: Valid as Hoplisoma potaroense (Myers 1927). Callichthyidae: Corydoradinae. Distribution: South America: Potaro River basin (Guyana) endemic. Habitat: freshwater.

psamathos, Corydoras Tencatt [L. F. C.], Ohara [W. M.], Sousa [L. M. de] & Britto [M. R.] 2022:24, Figs. 11-14 [Neotropical Ichthyology v. 20 (no. 3): e220070; ref. 39741] Igarapé Santa Júlia, a tributary to the Rio Jamanxim, Tapajós basin, Novo Progresso Municipality, Pará State, Brazil, 06°45'38"S, 55°28'44"W. Holotype: MNRJ 53289. Paratypes: CITL, INPA, MZUSP, NUP. •Valid as Hoplisoma psamathos (Tencatt, Ohara, Sousa & Britto 2022). Current status: Valid as Hoplisoma psamathos (Tencatt, Ohara, Sousa & Britto 2022). Callichthyidae: Corydoradinae. Distribution: South America: Jamanxim River drainage, Tapajós basin, Brazil. Habitat: freshwater.

punctata, Loricaria Suckow [G. A.] 1799:656 [Naturgeschichte der Thiere v. 4, pt. 1; ref. 18858] New combination for Cataphractus punctatus Bloch 1794; not an original description. •In the synonymy of Hoplisoma punctatum (Bloch 1794). Current status: Synonym of Hoplisoma punctatum (Bloch 1794). Callichthyidae: Corydoradinae.

punctatus, Callichthis Valenciennes [A.] 1834:Pl. 5 (fig. 1) [Voyage dans l'Amérique méridionale; ref. 20720] Probably around Montevideo (Valenciennes 1840). Holotype not preserved. Genus should have been Callichthys (see Grant 2018:26 [ref. 36057]). Secondary homonym of Cataphractus punctatus Bloch 1794 when in Corydoras. Name available from plate, description in Valenciennes 1847:8 [ref. 5010] as Callichthys punctatus. See also Valenciennes in Cuvier & Valenciennes 1840:318 [ref. 1008]. Holotype is the specimen illustrated on Pl. 5, which was published in 1834. •Synonym of Corydoras paleatus (Jenyns 1842) or Corydoras geoffroy Lacepède 1803 -- (Isbrücker 1999:38 [ref. 24040]). •Senior synonym of Corydoras paleatus (Jenyns 1842) and nomen oblitum -- (Grant 2018:26 [ref. 36057]). •Synonym of Hoplisoma paleatum (Jenyns 1842). Nomen Oblitum. Current status: Synonym of Hoplisoma paleatum (Jenyns 1842). Callichthyidae: Callichthyinae. Habitat: freshwater.

punctatus, Cataphractus Bloch [M. E.] 1794:90, Pl. 377 (fig. 2) [Naturgeschichte der ausländischen Fische v. 8; ref. 463] Compagnie Creek, Suriname River system, Brokopondo, Suriname [rivers in Suriname]. Lectotype: ZMB 3149. Paralectotypes: ZMB 22228 [ex ZMB 3149] (1). Type catalog: Paepke 1999:52 [ref. 24282], Ferraris 2007:123 [ref. 29155]. On p. 72 of Bloch's Ichthyologie, v. 11 [ref. 21381]. Lectotype selected by Nijssen & Isbrücker 1975:63 [ref. 22250] after location of syntypes and following neotype designation. Placed on Official List (Opinion 1169). •Valid as Corydoras punctatus (Bloch 1794) -- (Nijssen & Isbrücker 1980:193 [ref. 6910], Burgess 1989:367 [ref. 12860], Isbrücker 1999:41 [ref. 24040], Le Bail et al. 2000:206 [ref. 24549], Isbrücker 2000:18 [ref. 26715], Isbrücker 2001:233 [ref. 26805], Isbrücker 2002:69 [ref. 26658], Isbrücker 2002:107 [ref. 26659], Reis in Reis et al. 2003:302 [ref. 27061], Ferraris 2007:123 [ref. 29155]). •Valid as Hoplisoma punctatum (Bloch 1794) -- (Dias et al. 2024:27 [ref. 41219]). Current status: Valid as Hoplisoma punctatum (Bloch 1794). Callichthyidae: Corydoradinae. Distribution: South America: Suriname River basin, Suriname and Iracoubo River basin, French Guiana. Habitat: freshwater.

reynoldsi, Corydoras Myers [G. S.] & Weitzman [S. H.] 1960:105, Figs. 2-3 [Stanford Ichthyological Bulletin v. 7 (no. 4); ref. 9584] Tributary to Río Orteguasa (ca. 0°45'N, 75°15'W), Tres Esquinas, Caquetà Province, eastern Colombia. Holotype: CAS-SU 52349 (Fig. 2 lists SU 50702 as holotype). Paratypes: CAS-SU 50702 (7), ZMA 111424 (1). Type catalog: Nijssen et al. 1982:49 [ref. 19236], Ferraris 2007:123 [ref. 29155]. •Valid as Corydoras reynoldsi Myers & Weitzman 1960 -- (Nijssen & Isbrücker 1980:211 [ref. 6910], Burgess 1989:367 [ref. 12860], Isbrücker 2001:234 [ref. 26805], Reis in Reis et al. 2003:302 [ref. 27061], Britto & Lima 2003:88 [ref. 27314], Britto et al. 2007:294 [ref. 29283], Ferraris 2007:123 [ref. 29155], DoNascimiento et al. 2017:73 [ref. 35633]). •Valid as Hoplisoma reynoldsi (Myers & Weitzman 1960) -- (Dias et al. 2024:27 [ref. 41219]). •Valid as 'Hoplisoma' reynoldsi (Myers & Weitzman 1960) -- (Alonso et al. 2024:12 [ref. 41682]). Current status: Valid as Hoplisoma reynoldsi (Myers & Weitzman 1960). Callichthyidae: Corydoradinae. Distribution: South America: upper Caquetá River basin, Colombia. Habitat: freshwater.

rikbaktsa, Corydoras Lima [F. C. T.] & Britto [M. R.] 2020:519, Figs. 1-6 [Zootaxa 4742 (no. 3); ref. 37324] Rio Juininha, tributary of the Rio Juruena, road BR-174, Mato Grosso, Brazil, 11°32'12"S, 58°51'08"W. Holotype: MZUSP 125013. Paratypes: ANSP, CAS, MNRJ, MZUSP, ZUEC. •Valid as Corydoras rikbaktsa Lima & Britto 2020 -- (Tencatt et al. 2022:34 [ref. 39741]). •Valid as Hoplisoma rikbaktsa (Lima & Britto 2020). Current status: Valid as Hoplisoma rikbaktsa (Lima & Britto 2020). Callichthyidae: Corydoradinae. Distribution: South America: Rio Juruena drainage, Tapajós River basin, Mato Grosso, Brazil. Habitat: freshwater.

sanchesi, Corydoras Nijssen [H.] & Isbrücker [I. J. H.] 1967:43, Pl. 5 (fig. 2) [Zoologische Mededeelingen (Leiden) v. 42 (no. 5); ref. 7981] Gojo Creek above Posoegroenoe, tributary of the Saramacca River, Brokopondo, Suriname. Holotype: RMNH 25319. Paratypes: RMNH 25320 (12), ZMA 104630 (5). Type catalog: Nijssen et al. 1982:50 [ref. 19236], Ferraris 2007:124 [ref. 29155]. •Valid as Corydoras sanchesi Nijssen & Isbrücker 1967 -- (Nijssen & Isbrücker 1980:212 [ref. 6910], Burgess 1989:367 [ref. 12860], Grant 1998:43 [ref. 23454], Isbrücker 2001:234 [ref. 26805], Reis in Reis et al. 2003:302 [ref. 27061], Ferraris 2007:124 [ref. 29155]). •Valid as Hoplisoma sanchesi (Nijssen & Isbrücker 1967) -- (Dias et al. 2024:27 [ref. 41219]). Current status: Valid as Hoplisoma sanchesi (Nijssen & Isbrücker 1967). Callichthyidae: Corydoradinae. Distribution: South America: Saramacca River drainage, Suriname. Habitat: freshwater.

schwartzi, Corydoras Rössel [F.] 1963:359, Figs. 1-2 [Senckenbergiana Biologica v. 44 (no. 5); ref. 19251] Mouth of Rio Purus, Amazonas, Brazil. Holotype: SMF 6425. Paratypes: SMF 6426-36 (11). Type catalog: Ferraris 2007:124 [ref. 29155]. Also appeared in Rössel 1966:7 [ref. 9060]. •Valid as Corydoras schwartzi Rössel 1963 -- (Nijssen & Isbrücker 1980:200 [ref. 6910], Burgess 1989:367 [ref. 12860], Grant 1998:44 [ref. 23454], Isbrücker 2001:235 [ref. 26805], Reis in Reis et al. 2003:302 [ref. 27061], Ferraris 2007:124 [ref. 29155], Ottoni et al. 2016:133 [ref. 34756]). •Valid as Hoplisoma schwartzi (Rössel 1963) -- (Dias et al. 2024:27 [ref. 41219]). Current status: Valid as Hoplisoma schwartzi (Rössel 1963). Callichthyidae: Corydoradinae. Distribution: South America: Purus River drainage, middle Amazon basin, Brazil. Habitat: freshwater.

similis, Corydoras Hieronimus [H.] 1991:39, Fig. 1 [Zeitschrift für Fischkunde v. 1 (no. 1); ref. 20044] Tributary of Rio Madeira, vicinity of city of Ariqumes, Rondonia State, Brazil. Holotype: ZFMK 16400. Paratypes: ZFMK 16401-02 (1, 1), uncat. (2); ZMA (1). Type catalog: Ferraris 2007:124 [ref. 29155], Herder et al. 2010:121 [ref. 31087]. •Valid as Corydoras similis Hieronimus 1991 -- (Burgess & Finley 1996:168 [ref. 22901], Isbrücker 2001:235 [ref. 26805], Reis in Reis et al. 2003:303 [ref. 27061], Ferraris 2007:124 [ref. 29155], Tencatt & Pavanelli 2015:294 [ref. 35434], Tencatt & Ohara 2016:[13] [ref. 34353], Tencatt & Evers 2016:[12] [ref. 34387], Tencatt et al. 2016:[18] [ref. 34388]). •Valid as Hoplisoma simile (Hieronimus 1991) -- (Dias et al. 2024:27 [ref. 41219] as similis). Current status: Valid as Hoplisoma simile (Hieronimus 1991). Callichthyidae: Corydoradinae. Distribution: South America: Madeira River basin, Brazil. Habitat: freshwater.

sipaliwini, Corydoras melanistius Hoedeman [J. J.] 1965:137, Figs. 84 (a, b, c) [Elseviers pocketboek voor de aquariumliefhebber; ref. 19660] •Valid as Corydoras sipaliwini Nijssen & Isbrücker 1965 -- (Taphorn et al. 2022:45 [ref. 41297]). •Name only, not available -- (Nijssen & Isbrücker 1979:133 [ref. 19254], Isbrücker 2000:39 [ref. 25151]). •In genus Hoplisoma. Nomen Nudum. Current status: Uncertain. Callichthyidae: Corydoradinae. Distribution: South America: Guyana, Suriname. Habitat: freshwater.

sipaliwini, Corydoras punctatus Hoedeman [J. J.] 1965:87, Figs. 46 (1, 2, 3) [Elseviers pocketboek voor de aquariumliefhebber; ref. 19660] Sipaliwini River at Paru Savannah, Suriname. Lectotype: ZMA 104278. Paralectotypes: ZMA 121.807 (2), 121.808 (2, C. baderi), 121.809 (1, hybrid: C. sipaliwini x C. baderi) Type catalog: Ferraris 2007:125 [ref. 29155]. Lectotype designation in Isbrücker 2000:38 [ref. 25151]. Fig. 46(1) in Hoedeman 1965 [ref. 19660] is Corydoras baderi Geisler 1969 according to Isbrücker 2000:38 [ref. 25151]. •Valid as Corydoras sipaliwini Hoedeman 1965 -- (Le Bail et al. 2000:208 [ref. 24549], Isbrücker 2000:36 [ref. 25151], Isbrücker 2001:235 [ref. 26805], Reis in Reis et al. 2003:303 [ref. 27061], Ferraris 2007:125 [ref. 29155]). •Valid as Hoplisoma sipaliwini (Hoedeman 1965) -- (Dias et al. 2024:27 [ref. 41219]). Current status: Valid as Hoplisoma sipaliwini (Hoedeman 1965). Callichthyidae: Corydoradinae. Distribution: South America: coastal river basins, Guyana and Suriname. Habitat: freshwater.

steindachneri, Corydoras Isbrücker [I. J. H.] & Nijssen [H.] 1973:4, Fig. 3 [Beaufortia v. 21 (no. 272); ref. 7567] Paranaguá, 25°32'S, 48°36'W, Paraná State, Brazil. Holotype: NMW 1504. Paratypes: ZMA 112657 (1). Type catalog: Nijssen et al. 1982:51 [ref. 19236], Ferraris 2007:125 [ref. 29155]. •Valid as Corydoras steindachneri Isbrücker & Nijssen 1973 -- (Nijssen & Isbrücker 1980:206 [ref. 6910], Burgess 1989:367 [ref. 12860], Isbrücker 2001:236 [ref. 26805], Reis in Reis et al. 2003:303 [ref. 27061], Ferraris 2007:125 [ref. 29155], Tencatt et al. 2014:78 [ref. 33230], dos Reis et al. 2020:465 [ref. 38364]). •Valid as Hoplisoma steindachneri (Isbrücker & Nijssen 1973) -- (Dias et al. 2024:27 [ref. 41219], Tencatt et al. 2025:25 [ref. 42519]). Current status: Valid as Hoplisoma steindachneri (Isbrücker & Nijssen 1973). Callichthyidae: Corydoradinae. Distribution: South America: coastal rivers in Paraná State (Brazil). Habitat: freshwater.

sterbai, Corydoras Knaack [J.] 1962:131, Pl. 12 (figs. 2a-c) [Senckenbergiana Biologica v. 43 (no. 2); ref. 6038] Rio Guaporé, Brazil. Holotype: SMF 5476. Paratypes: MCP 27959 (1), ZMA 123550 (1). Type information: Knaack 2003:16 [ref. 27879]. Type catalog: Ferraris 2007:126 [ref. 29155]. •Valid as Corydoras sterbai Knaack 1962 -- (Nijssen & Isbrücker 1980:200 [ref. 6910], Burgess 1989:367 [ref. 12860], Isbrücker 2001:236 [ref. 26805], Reis in Reis et al. 2003:303 [ref. 27061], Ferraris 2007:125 [ref. 29155], Sarmiento et al. 2014:190 [ref. 35004], Tencatt & Ohara 2016:[13] [ref. 34353], Tencatt et al. 2016:[18] [ref. 34388], Ottoni et al. 2016:133 [ref. 34756], Ohara et al. 2016:550 [ref. 34772]). •Valid as Hoplisoma sterbai (Knaack 1962) -- (Dias et al. 2024:27 [ref. 41219]). Current status: Valid as Hoplisoma sterbai (Knaack 1962). Callichthyidae: Corydoradinae. Distribution: South America: Guaporé River drainage, western Amazon basin, central Brazil and Bolivia. Habitat: freshwater.

surinamensis, Corydoras schwartzi Nijssen [H.] 1970:39, Fig. 22 [Beaufortia v. 18 (no. 230); ref. 7452] Creek at right bank of Coppename River system, 3°52'30"N, 56°53'00"W, District Saramacca, Suriname. Holotype: ZMA 105876. Paratypes: CAS 14506 [ex ZMA 105.878] (2); BMNH 1970.6.16.1-2 (2); FMNH 78362 [ex ZMA 105879] (1); IRSNB 470 (1); NMW 61109 (2); RMNH 25819 (2); USNM 204223 (2); ZMA 105878 (63), 105879 (27 or 28). Type catalog: Nijssen et al. 1982:50 [ref. 19236], Ibarra & Stewart 1987:27 [ref. 12367], Walschaerts 1987:19 [ref. 20755], Ferraris & Vari 1992:15 [ref. 19771], Ferraris 2007:126 [ref. 29155]. •Valid as Corydoras surinamensis Nijssen 1970 -- (Nijssen & Isbrücker 1980:201 [ref. 6910], Burgess 1989:367 [ref. 12860], Grant 1998:43 [ref. 23454], Isbrücker 2001:236 [ref. 26805], Reis in Reis et al. 2003:303 [ref. 27061], Ferraris 2007:126 [ref. 29155]). •Valid as Hoplisoma surinamense (Nijssen 1970) -- (Dias et al. 2024:27 [ref. 41219] as surinamensis). Current status: Valid as Hoplisoma surinamense (Nijssen 1970). Callichthyidae: Corydoradinae. Distribution: South America: Coppename River drainage, Suriname. Habitat: freshwater.

tenebrosum, Hoplisoma Tencatt [L. F. C.], Ohara [W. M.], Carvalho [V.], Grant [S.] & Britto [M.] 2025:30, Figs. 3B, 19-30 [Neotropical Ichthyology v. 23 (no. 1): e240100; ref. 42064] Igarapé Águabranca (= Ipixuna) at the confluence with the igarapé Palomita, rio Tapajós basin, rio Amazonas basin, Maués, Amazonas, Brazil, approximately 06°36'S, 58°37'W. Holotype: MNRJ 55757. Paratypes: CITL, CPUFMT, INPA, MNRJ, NUP. •Valid as Hoplisoma tenebrosum Tencatt, Ohara, Carvalho, Grant & Britto 2025. Current status: Valid as Hoplisoma tenebrosum Tencatt, Ohara, Carvalho, Grant & Britto 2025. Callichthyidae: Corydoradinae. Distribution: South America: Tapajós River drainage, Amazon basin, Brazil. Habitat: freshwater.

thanatos, Corydoras Tencatt [L. F. C.], Ohara [W. M.], Sousa [L. M. de] & Britto [M. R.] 2022:4, Figs. 1-4 [Neotropical Ichthyology v. 20 (no. 3): e220070; ref. 39741] Stream with unknown name, tributary to the rio Jamanxim, rio Tapajós basin, Novo Progresso Municipality, Pará State, Brazil, 08°23'06"S, 55°19'43"W. Holotype: MNRJ 53287. Paratypes: CITL, INPA, MZUSP, NUP. •Valid as Hoplisoma thanatos (Tencatt, Ohara, Sousa & Britto 2022). Current status: Valid as Hoplisoma thanatos (Tencatt, Ohara, Sousa & Britto 2022). Callichthyidae: Corydoradinae. Distribution: South America: Jamanxim River drainage, Tapajós River basin, Brazil. Habitat: freshwater.

trilineatus, Corydoras Cope [E. D.] 1872:281, Pl. 6 (figs. 2a-c) [Proceedings of the Academy of Natural Sciences of Philadelphia v. 23; ref. 921] Tributary of Río Ambyiacu, Peru. Lectotype: ANSP 8294. Paralectotypes: ANSP 8295 (1). Type catalog: Böhlke 1984:32 [ref. 13621], Ferraris 2007:126 [ref. 29155]. Lectotype selected by Nijssen & Isbrücker 1980:194 [ref. 6910]. •Valid as Corydoras trilineatus Cope 1872 -- (Nijssen & Isbrücker 1980:194 [ref. 6910], Ortega & Vari 1986:16 [ref. 9708], Burgess 1989:367 [ref. 12860], Isbrücker 2001:237 [ref. 26805], Reis in Reis et al. 2003:303 [ref. 27061], Britto & Lima 2003:89 [ref. 27314], Ferraris 2007:126 [ref. 29155], Barriga Salazar 2014:111 [ref. 35745], Sarmiento et al. 2014:190 [ref. 35004], Tencatt & Pavanelli 2015:294 [ref. 35434], Tencatt & Evers 2016:[12] [ref. 34387], Tencatt & Ohara 2016:[13] [ref. 34353], Tencatt et al. 2016:[18] [ref. 34388], DoNascimiento et al. 2017:73 [ref. 35633], Lima & Sazima 2017:30 [ref. 35111], Meza-Vargas et al. 2021:25 [ref. 39298], Chuctaya et al. 2022:38 [ref. 42137]). •Valid as Hoplisoma trilineatum (Cope 1872) -- (Dias et al. 2024:27 [ref. 41219]). Current status: Valid as Hoplisoma trilineatum (Cope 1872). Callichthyidae: Corydoradinae. Distribution: South America: Brazil, Ecuador, Bolivia, Colombia, Peru and Suriname. Habitat: freshwater.

triseriatus, Corydoras nattereri Ihering [R. von] 1911:386 [Revista do Museo Paulista, São Paulo v. 8 (1910); ref. 14822] Rio Doce, Espírito Santo State, Brazil. Lectotype: MZUSP [ex DZSASP] 342. Paralectotypes: MZUSP [ex DZSASP] 5331/5358 (orig. 28); ZMA 110940-41 (1, 1). Type catalog: Nijssen et al. 1982:47 [ref. 19236], Ferraris 2007:121 [ref. 29155]. Lectotype selected by Britski 1969:207 [ref. 12401]. •Synonym of Corydoras nattereri Steindachner 1876 -- (Nijssen & Isbrücker 1980:204 [ref. 6910], Isbrücker 2001:231 [ref. 26805], Reis in Reis et al. 2003:300 [ref. 27061], Ferraris 2007:121 [ref. 29155]). •Synonym of Hoplisoma nattereri (Steindachner 1876). Current status: Synonym of Hoplisoma nattereri (Steindachner 1876). Callichthyidae: Corydoradinae. Habitat: freshwater.

tukano, Corydoras Britto [M. R.] & Lima [F. C. T.] 2003:84, Figs. 1-5 [Neotropical Ichthyology v. 1 (no. 2); ref. 27314] Río Tiquié, communidade de Caruru, beaches in pool below the fall, 0°16'28.9"N, 69°54'53.6"W, Amazonas State, Brazil. Holotype: MZUSP 82100. Paratypes: ANSP 179201 (1); CAS 217960 (1); INPA 21423 (2); MNRJ 25355 (2); MZUSP 64096 (4), 65689 (2), 81153 (9), 81179 (2), 81194 (5), 81216 (2), 81244 (16), 81276 (5). Type catalog: Ferraris 2007:126 [ref. 29155]. •Valid as Corydoras tukano Britto & Lima 2003 -- (Britto et al. 2007:294 [ref. 29283], Ferraris 2007:126 [ref. 29155], Tencatt et al. 2014:78 [ref. 33230], Tencatt & Pavanelli 2015:294 [ref. 35434], Tencatt & Ohara 2016:[13] [ref. 34353], Tencatt & Evers 2016:[12] [ref. 34387], Tencatt et al. 2016:[18] [ref. 34388], Lima & Sazima 2017:30 [ref. 35111]). •Valid as Hoplisoma tukano (Britto & Lima 2003) -- (Dias et al. 2024:27 [ref. 41219]). •Valid as 'Hoplisoma' tukano (Britto & Lima 2003) -- (Alonso et al. 2024:12 [ref. 41682]). Current status: Valid as Hoplisoma tukano (Britto & Lima 2003). Callichthyidae: Corydoradinae. Distribution: South America: Negro River drainage, Brazil. Habitat: freshwater.

urucu, Corydoras Britto [M. R.], Wosiacki [W. B.] & Montag [L. F. A.] 2009:684, Figs. 1-3 [Copeia 2009 (no. 4); ref. 30609] Coari, Igarapé da Onça, Rio Urucu basin, tributary of Lago Coari, Rio Solimões system, 4°52'09.12"S, 65°18'03.6"W, Amazonas State, Brazil. Holotype: MPEG 14924. Paratypes: MNRJ 32446 (4); MPRG 11252 (4, 2 c&s), 12239 (6), 15012 (8). •Valid as Corydoras urucu Britto, Wosiacki & Montag 2009 -- (Tencatt et al. 2019:[14] [ref. 36697], Bentley et al. 2021:196 [ref. 38185]). •Valid as Hoplisoma urucu (Britto, Wosiacki & Montag 2009) -- (Dias et al. 2024:27 [ref. 41219]). Current status: Valid as Hoplisoma urucu (Britto, Wosiacki & Montag 2009). Callichthyidae: Corydoradinae. Distribution: South America: Urucu River drainage, Solimões River system, Amazon basin, Brazil. Habitat: freshwater.

virescens, Corydoras Miranda Ribeiro [A. de] 1912:16 [Loricariidae, Callichthyidae, Doradidae e Trichomycteridae Annexo no. 5; ref. 3718] Rio Paraguay near Cáceres, 16°05'S, 57°40'W, Mato Grosso State, Brazil. Holotype (unique): MNRJ 3806. Type catalog: Miranda Ribeiro 1955:395 [ref. 12732], Miranda Ribeiro 1959:15 [ref. 10392], Ferraris 2007:123 [ref. 29155]. •Valid as Corydoras virescens Miranda Ribeiro 1912 -- (Isbrücker 2001:237 [ref. 26805]). •Synonym of Corydoras polystictus Regan 1912 -- (Nijssen & Isbrücker 1980:197 [ref. 6910], Reis in Reis et al. 2003:301 [ref. 27061], Ferraris 2007:123 [ref. 29155], Mirande & Koerber 2015:40 [ref. 35117], Koerber et al. 2017:58 [ref. 35267]). •Synonym of Hoplisoma polystictum (Regan 1912). Current status: Synonym of Hoplisoma polystictum (Regan 1912). Callichthyidae: Corydoradinae. Habitat: freshwater.

weitzmani, Corydoras Nijssen [H.] 1971:91, Fig. 1 [Beaufortia v. 19 (no. 250); ref. 7698] Río Vilcanota system at Cuzco, 13°32'S, 71°57'W, Cuzco State, Peru. Holotype: FMNH 69934. Paratypes: FMNH 75955 (2), USNM 206018 (1), ZMA 110391 (2). Type catalog: Nijssen et al. 1982:51 [ref. 19236], Ibarra & Stewart 1987:28 [ref. 12367], Ferraris & Vari 1992:15 [ref. 19771], Ferraris 2007:126 [ref. 29155]. •Valid as Corydoras weitzmani Nijssen 1971 -- (Nijssen & Isbrücker 1980:212 [ref. 6910], Ortega & Vari 1986:16 [ref. 9708], Burgess 1989:367 [ref. 12860], Isbrücker 2001:237 [ref. 26805], Reis in Reis et al. 2003:304 [ref. 27061], Britto & Lima 2003:89 [ref. 27314], Britto et al. 2007:294 [ref. 29283], Ferraris 2007:126 [ref. 29155], Meza-Vargas et al. 2021:25 [ref. 39298], Chuctaya et al. 2022:38 [ref. 42137]). •Valid as Hoplisoma weitzmani (Nijssen 1971) -- (Dias et al. 2024:27 [ref. 41219]). Current status: Valid as Hoplisoma weitzmani (Nijssen 1971). Callichthyidae: Corydoradinae. Distribution: South America: upper Amazon basin (Peru). Habitat: freshwater.

wotroi, Corydoras Nijssen [H.] & Isbrücker [I. J. H.] 1967:44, Pl. 5 (fig. 3) [Zoologische Mededeelingen (Leiden) v. 42 (no. 5); ref. 7981] Outlet of Kleine Saramacca River, Saramacca River system, Brokopondo, Suriname. Holotype: RMNH 25331. Paratypes: RMNH 25332 (2), ZMA 104641 (1). Type catalog: Nijssen et al. 1982:51 [ref. 19236], Provenzano et al. 1998:6 [ref. 24196], Ferraris 2007:120 [ref. 29155]. See Grant 1998:43 [ref. 23454]. •Synonym of Corydoras melanistius Regan 1912, subspecies brevirostris Fraser-Brunner 1947 -- (Nijssen & Isbrücker 1980:197 [ref. 6910]). •Status uncertain -- (Isbrücker 2001:237 [ref. 26805]). •Synonym of Corydoras melanistius Regan 1912 -- (Reis in Reis et al. 2003:300 [ref. 27061], Ferraris 2007:120 [ref. 29155]). •Synonym of Hoplisoma melanistium (Regan 1912). Current status: Synonym of Hoplisoma melanistium (Regan 1912). Callichthyidae: Corydoradinae. Habitat: freshwater.

xinguensis, Corydoras Nijssen [H.] 1972:429, Fig. 9 [Netherlands Journal of Zoology v. 21 (no. 4); ref. 673] Suia Missú Creek, tributary of upper Rio Xingu near Posto Diauarum, about 11°15'S, 53°00'W, Mato Grosso State, Brazil. Holotype: IRSNB 500. Paratypes: IRSNB 501 (orig. 3, now 2), 502 (orig. 2, now 1), 511 (orig. 2, now 1); MZUSP [ex IRSNB 501] (1), [ex IRSNB 502] (1), [ex IRSNB 511] (1); USNM 205870 (1); ZMA 110392-93 (2, 1). Type catalog: Nijssen et al. 1982:51 [ref. 19236], Walschaerts 1987:19-20 [ref. 20755], Ferraris & Vari 1992:15 [ref. 19771], Ferraris 2007:126 [ref. 29155]. •Valid as Corydoras xinguensis Nijssen 1972 -- (Nijssen & Isbrücker 1980:202 [ref. 6910], Burgess 1989:367 [ref. 12860], Isbrücker & Nijssen 1992:13 [ref. 20559], Grant 1998:43 [ref. 23454], Isbrücker 2001:238 [ref. 26805], Reis in Reis et al. 2003:304 [ref. 27061], Ferraris 2007:126 [ref. 29155], Espíndola et al. 2014:26 [ref. 33269], Tencatt & Ohara 2016:[13] [ref. 34353], Tencatt et al. 2016:[18] [ref. 34388]). •Valid as Hoplisoma xinguense (Nijssen 1972) -- (Dias et al. 2024:27 [ref. 41219] as xinguensis). Current status: Valid as Hoplisoma xinguense (Nijssen 1972). Callichthyidae: Corydoradinae. Distribution: South America: upper Xingu River basin, Brazil. Habitat: freshwater.