Mesonauta, the flag cichlids, is a small genus of cichlids native to the Amazon, Orinoco, Essequibo, Paraná and Paraguay basins in South America. Mesonauta...

Mesonauta festivus, the flag cichlid, is a species of cichlid native to the Paraná, Paraguay, Madre de Dios, Guaporé, Mamoré, Jamari and Tapajós river...

has three subspecies recognized, including the nominate. The subspecies mesonauta is distinguished from the nominate by the rosy tinge of its fresh plumage...

Mesonauta acora is a species of cichlid fish endemic to the Amazon Basin of Brazil; specifically, to blackwater in the Xingu and Tocantins River basins...

Mesonauta insignis is a species of cichlid fish native to the Orinoco and upper Rio Negro basins in South America. Although generally reported to reach...

Mesonauta egregius is a species of cichlid fish endemic to the Meta and Vichada River basins (both tributaries of the Orinoco) in Colombia. It is typically...

Mesonauta mirificus is a species of cichlid fish native to the western Amazon basin in Peru and Colombia. It is typically found near plants in blackwater...

Mesonauta guyanae is a species of cichlid fish native to the Essequibo (Guyana) and Rio Negro (Brazil) basins in South America. It reaches a standard...

Kullander 1990 Mchenga Stauffer & Konings, 2006 Melanochromis Trewavas, 1935 Mesonauta Günther, 1862 Microchromis Johnson 1975 Mikrogeophagus Meulengracht-Madson...

(or Ardenna pacifica) Western red-billed tropicbird, Phaethon aethereus mesonauta – breeding suspected but not verified Nazca booby, Sula granti – breeding...