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

Species in the genus Mesonauta: [ 7 ] records

acora, Chromys Castelnau [F. L.] 1855:17, Pl. 9 (fig. 1) [Animaux nouveaux or rares v. 2; ref. 766] Lakes of the Rio Araguaia, Brazil. No types known. Type catalog: Bauchot et al. 1978:44 [ref. 20862]. Originally as Chromys?? acora. Original genus should have been Chromis. •Valid as Mesonauta acora (Castelnau 1855) -- (Kullander & Silfvergrip 1991:424 [ref. 16014], Schindler 1998:10 [ref. 23480], Kullander in Reis et al. 2003:638 [ref. 27061], Schindler & Ottoni 2016:84 [ref. 34465], Oliveira et al. 2025:7 [ref. 42052]). Current status: Valid as Mesonauta acora (Castelnau 1855). Cichlidae: Cichlinae. Distribution: South America: Rio Araguaia drainage (Brazil). Habitat: freshwater.

egregius, Mesonauta Kullander [S. O.] & Silfvergrip [A. M. C.] 1991:429, Figs. 1E, 9-10, 21 [Revue Suisse de Zoologie v. 98 (no. 2); ref. 16014] Mouth of Río Guarrojo, laguna no. 1 on Finca Boca de Guarrojo, Dept. Vichada, Colombia. Holotype: ICNMNH 1686 [ex NRM 43043]. Paratypes: FMNH 92863 (9); NRM 11302 (2), 12280 (1). Type catalog: Mojica & Agudelo-Zamora 2018:54 [ref. 36127]. •Valid as Mesonauta egregius Kullander & Silfvergrip 1991 -- (Schindler 1998:11 [ref. 23480], Lasso & Machado-Allison 2000:122 [ref. 27968], Kullander in Reis et al. 2003:638 [ref. 27061], Schindler & Ottoni 2016:86 [ref. 34465], DoNascimiento et al. 2017:100 [ref. 35633], Urbano-Bonilla et al. 2018:90 [ref. 35773], Cortés Hernández et al. 2023:457 [ref. 40760], Lasso & Machado-Allison 2024:160 [ref. 42465], Oliveira et al. 2025:7 [ref. 42052]). Current status: Valid as Mesonauta egregius Kullander & Silfvergrip 1991. Cichlidae: Cichlinae. Distribution: South America: Orinoco River basin (Colombia) endemic. Habitat: freshwater.

festivus, Heros Heckel [J. J.] 1840:376 [Annalen des Wiener Museums der Naturgeschichte v. 2; ref. 2064] Rio Guaporé, Mato Grosso, Brazil. No types known. •Valid as Cichlaurus festivus (Heckel 1840) -- (Ovchynnyk 1967:42 [ref. 37559]). •Valid as Mesonauta festivus (Heckel 1840) -- (Ortega & Vari 1986:20 [ref. 9708], Kullander 1986:206 [ref. 12439], Kullander & Silfvergrip 1991:420 [ref. 16014], Schindler 1998:10 [ref. 23480], Britski et al. 1999:151 [ref. 24147], Lasso et al. 2001:101 [ref. 25928], Kullander in Reis et al. 2003:638 [ref. 27061], Sarmiento et al. 2014:129, 189 [ref. 35004], Schindler & Ottoni 2016:86 [ref. 34465], Koerber et al. 2017:81 [ref. 35267], see DoNascimiento et al. 2017:[29] [ref. 35679], Careaga et al. 2020:77 [ref. 37774], Hablützel & Huanto 2020:56 [ref. 37939], Meza-Vargas et al. 2021:28 [ref. 39298], Chuctaya et al. 2022:53 [ref. 42137], Chan et al. 2023:145 [ref. 40365], Oliveira et al. 2025:7 [ref. 42052]). Current status: Valid as Mesonauta festivus (Heckel 1840). Cichlidae: Cichlinae. Distribution: South America: Amazon and Paraguay River basins (Bolivia, Brazil, Paraguay and Peru). Introduced in Hong Kong (China). Habitat: freshwater.

guyanae, Mesonauta Schindler [I.] 1998:5, Figs. 1b, 2-3 [Zeitschrift für Fischkunde v. 5 (no. 1); ref. 23480] Rockstone, Essequibo River, Guyana. Holotype: ZMB 32779. Paratypes: ZMB 32333 (2), 32780 (1); plus additional non-type material. Type catalog: Paepke & Schindler 2013:270 [ref. 32895]. •Valid as Mesonauta guyanae Schindler 1998 -- (Keith et al. 2000:206 [ref. 24547], Kullander in Reis et al. 2003:638 [ref. 27061], Schindler & Ottoni 2016:87 [ref. 34465], Melo et al. 2016:135 [ref. 34701], Taphorn et al. 2022:33 [ref. 41297], Oliveira et al. 2025:7 [ref. 42052]). Current status: Valid as Mesonauta guyanae Schindler 1998. Cichlidae: Cichlinae. Distribution: South America: Amazon River and Essequibo River basins (Brazil and Guyana). Habitat: freshwater.

insignis, Heros Heckel [J. J.] 1840:378 [Annalen des Wiener Museums der Naturgeschichte v. 2; ref. 2064] Marabitanos, Rio Negro, Amazonas, Brazil. Lectotype: NMW 24415. Paralectotypes: NMW 24416-17 (1, 1); SMF 354 [ex NMW in 1843] (1). Lectotype selected by Kullander & Silfvergrip 1991:420 [ref. 16014]. •Valid as Mesonauta insignis (Heckel 1840) -- (Kullander 1986:200 [ref. 12439], Kullander & Silfvergrip 1991:420 [ref. 16014], Chang & Ortega 1995:7 [ref. 24302], Schindler 1998:11 [ref. 23480], Lasso & Machado-Allison 2000:124 [ref. 27968], Kullander in Reis et al. 2003:639 [ref. 27061], Barriga Salazar 2014:118 [ref. 35745], Sarmiento et al. 2014:129, 189 [ref. 35004], DoNascimiento et al. 2017:100 [ref. 35633], Meza-Vargas et al. 2021:28 [ref. 39298], Chuctaya et al. 2022:53 [ref. 42137], Lasso & Machado-Allison 2024:162 [ref. 42465], Oliveira et al. 2025:7 [ref. 42052]). Current status: Valid as Mesonauta insignis (Heckel 1840). Cichlidae: Cichlinae. Distribution: South America: Amazon River and Orinoco River basins (Bolivia, Brazil, Colombia, Ecuador, Peru and Venezuela). Habitat: freshwater.

karipuna, Mesonauta Oliveira [R. C. de], Britzke [R.], Oliveira [C.] & da Graça [W. J.] 2025:6, Figs. 1-3, 5 [Neotropical Ichthyology v. 23 (no. 3): e250103; ref. 42555] Igarapé Balneário Santa Bárbara, tributary of the Amapá Grande River, Amazonas Estuary and Coastal Drainages, municipality of Calçoene, Amapá State, Brazil, 02°03'42.8"N, 50°54'15.1"W. Holotype: NUP 24912. Paratypes: LBP, MCP, NUP. •Valid as Mesonauta karipuna Oliveira, Britzke, Oliveira & da Graça 2025. Current status: Valid as Mesonauta karipuna Oliveira, Britzke, Oliveira & da Graça 2025. Cichlidae: Cichlinae. Distribution: South America: Amapá Grande River drainage, Amazonas Estuary and Coastal Drainages, Amapá State, Brazil. Habitat: freshwater.

mirificus, Mesonauta Kullander [S. O.] & Silfvergrip [A. M. C.] 1991:430, Figs. 1F, 5, 10, 22-23 [Revue Suisse de Zoologie v. 98 (no. 2); ref. 16014] Cayapoza, Río Napo, Dept. Loreto, Peru. Holotype: NRM 20001. Paratypes: (318) MHNG uncat. (5); MUSM 3049 [listed twice] (3 and 5); NRM (remainder in 28 lots); USNM 313202 [not 31032] (4). •Valid as Mesonauta mirificus Kullander & Silfvergrip 1991 -- (Chang & Ortega 1995:5 [ref. 24302], Schindler 1998:11 [ref. 23480], Kullander in Reis et al. 2003:639 [ref. 27061], Barriga Salazar 2014:118 [ref. 35745], DoNascimiento et al. 2017:100 [ref. 35633], Meza-Vargas et al. 2021:28 [ref. 39298], Chuctaya et al. 2022:53 [ref. 42137], Oliveira et al. 2025:7 [ref. 42052]). Current status: Valid as Mesonauta mirificus Kullander & Silfvergrip 1991. Cichlidae: Cichlinae. Distribution: South America: Amazon River basin (Ecuador, Colombia and Peru). Habitat: freshwater.