Species that contain: Gymnogeophagus and gymnogenys [ 6 ] records

bucephalus, Geophagus Hensel [R.] 1870:63 [Archiv für Naturgeschichte v. 36 (pt. 1); ref. 18277] Rio Cadeia, Nova Petrópolis, Rio Grande do Sul, Brazil. Lectotype: ZMB 31373 [ex ZMB 7466]. Paralectotypes: ZMB 7466 (2 or 1), ?22294 (5). Type catalog: Paepke & Schindler 2013:268 [ref. 32895]. Lectotype selected by Reis & Malabarba 1988:280 [ref. 6638]. •Synonym of Gymnogeophagus gymnogenys (Hensel 1870) -- (Gosse 1976:118 [ref. 7029], Malabarba 1989:168 [ref. 14217]). •Synonym of Geophagus labiatus Hensel 1870 -- (Reis & Malabarba 1988:280 [ref. 6638], Kullander in Reis et al. 2003:635 [ref. 27061], Litz & Koerber 2014:34 [ref. 33622]). Current status: Synonym of Gymnogeophagus labiatus (Hensel 1870). Cichlidae: Cichlinae. Habitat: freshwater.

camurus, Geophagus Cope [E. D.] 1894:104, Pl. 9 (fig. 17) [Proceedings of the American Philosophical Society v. 33; ref. 965] Rio Grande do Sul, Brazil. Syntypes: (7) ANSP 21749-50 (2), 21885-88 (4). Type catalog: Böhlke 1984:57 [ref. 13621]. •Synonym of Gymnogeophagus rhabdotus (Hensel 1870) -- (Gosse 1976:111 [ref. 7029], Reis & Malabarba 1988:277 [ref. 6638], Malabarba 1989:167 [ref. 14217]). •Synonym of Gynmogeophagus gymnogenys (Hensel 1870) -- (Kullander in Reis et al. 2003:635 [ref. 27061], Litz & Koerber 2014:34 [ref. 33622], Mirande & Koerber 2015:58 [ref. 35117]). Current status: Synonym of Gymnogeophagus gymnogenys (Hensel 1870). Cichlidae: Cichlinae. Habitat: freshwater.

gymnogenys, Geophagus Hensel [R.] 1870:61 [Archiv für Naturgeschichte v. 36 (pt. 1); ref. 18277] Rio Cadeia, Rio Grande do Sul, Brazil. Lectotype: ZMB 7465. Paralectotypes: ZMB 22296 (11), 22299 (4). Type catalog: Paepke & Schindler 2013:268 [ref. 32895]. Lectotype selected by Gosse 1976:119 [ref. 7029]. •Valid as Gymnogeophagus gymnogenys (Hensel 1870) -- (Gosse 1976:117 [ref. 7029], Reis & Malabarba 1988:277 [ref. 6638], Malabarba 1989:167 [ref. 14217], Wimburger et al. 1998:510 [ref. 23857], Casciotta et al. 2000:53 [ref. 24908], Kullander in Reis et al. 2003:635 [ref. 27061], López et al. 2003:77 [ref. 27366], Menni 2004:87 [ref. 28131], Staeck 2006:104 [ref. 29421], González-Bergonzoni et al. 2009:21 [ref. 30455], Litz & Koerber 2014:34 [ref. 33622], Malabarba et al. 2015:660 [ref. 34105], Mirande & Koerber 2015:58 [ref. 35117], Bertaco et al. 2016:426 [ref. 34561], Nión et al. 2016:50 [ref. 35565], Koerber et al. 2017:8 [ref. 35083], Koerber et al. 2017:9 [ref. 35632] not from Argentina, Casciotta et al. 2017:20 [ref. 35727], Alonso et al. 2019:S1 [ref. 36529], Mirande & Koerber 2020:2 [ref. 37594], Giora & Wingert 2023:117 [ref. 41026], Loureiro et al. 2023:152 [ref. 40506]). Current status: Valid as Gymnogeophagus gymnogenys (Hensel 1870). Cichlidae: Cichlinae. Distribution: South America: southeastern Brazil and Uruguay. Habitat: freshwater.

labiatus, Geophagus Hensel [R.] 1870:64 [Archiv für Naturgeschichte v. 36 (pt. 1); ref. 18277] Rio Santa Maria, Taquara, Rio Grande do Sul, Brazil. Holotype (unique): ZMB 7467. Type catalog: Paepke & Schindler 2013:268 [ref. 32895]. •Valid as Geophagus labiatus Hensel 1870 -- (Reis & Malabarba 1988:280 [ref. 6638]). •Synonym of Gymnogeophagus gymnogenys (Hensel 1870) -- (Gosse 1976:118 [ref. 7029], Malabarba 1989:168 [ref. 14217]). •Valid as Gymnogeophagus labiatus (Hensel 1870) -- (Reis & Malabarba 1988:280 [ref. 6638], Casciotta et al. 2000:53 [ref. 24908], Kullander in Reis et al. 2003:635 [ref. 27061], Staeck 2006:104 [ref. 29421], González-Bergonzoni et al. 2009:23 [ref. 30455], Litz & Koerber 2014:34 [ref. 33622], Malabarba et al. 2015:659 [ref. 34105], Bertaco et al. 2016:426 [ref. 34561], Nión et al. 2016:50 [ref. 35565], Casciotta et al. 2017:20 [ref. 35727], Alonso et al. 2019:S1 [ref. 36529], Figueiredo et al. 2021:6 [ref. 38935], Giora & Wingert 2023:118 [ref. 41026], Loureiro et al. 2023:152 [ref. 40506]). Current status: Valid as Gymnogeophagus labiatus (Hensel 1870). Cichlidae: Cichlinae. Distribution: South America: Laguna dos Patos and Lagoa Mirim drainages (Brazil and Uruguay). Habitat: freshwater.

pygmaeus, Geophagus Hensel [R.] 1870:68 [Archiv für Naturgeschichte v. 36 (pt. 1); ref. 18277] Rio Guaíba, Porto Alegre, Rio Grande do Sul, Brazil. Syntypes: ZMB 7469 (2), 22295 (3). Type catalog: Paepke & Schindler 2013:268 [ref. 32895]. •Synonym of Gymnogeophagus gymnogenys (Hensel 1870) -- (Gosse 1976:118 [ref. 7029], Reis & Malabarba 1988:277 [ref. 6638], Malabarba 1989:167 [ref. 14217], Kullander in Reis et al. 2003:635 [ref. 27061], Litz & Koerber 2014:34 [ref. 33622], Mirande & Koerber 2015:58 [ref. 35117]). Current status: Synonym of Gymnogeophagus gymnogenys (Hensel 1870). Cichlidae: Cichlinae. Habitat: freshwater.

scymnophilus, Geophagus Hensel [R.] 1870:65 [Archiv für Naturgeschichte v. 36 (pt. 1); ref. 18277] Rio Cadeia, Nova Petrópolis, Rio Grande do Sul, Brazil. Lectotype: ZMB 31374. Paralectotypes: ZMB 7468 (3), 31374 (5). Type catalog: Paepke & Schindler 2013:269 [ref. 32895]. Lectotype selected by Reis & Malabarba 1988:280 [ref. 6638]. •Synonym of Gymnogeophagus gymnogenys (Hensel 1870) -- (Gosse 1976:118 [ref. 7029], Malabarba 1989:168 [ref. 14217]). •Synonym of Geophagus labiatus Hensel 1870 -- (Reis & Malabarba 1988:280 [ref. 6638], Kullander in Reis et al. 2003:635 [ref. 27061], Litz & Koerber 2014:34 [ref. 33622]). Current status: Synonym of Gymnogeophagus labiatus (Hensel 1870). Cichlidae: Cichlinae. Habitat: freshwater.