''Isthmoheros tuyrensis'', is a

species In biology, a species is the basic unit of classification and a taxonomic rank of an organism, as well as a unit of biodiversity. A species is often defined as the largest group of organisms in which any two individuals of the appropriate s ...

cichlid Cichlids are fish from the family Cichlidae in the order Cichliformes. Cichlids were traditionally classed in a suborder, the Labroidei, along with the wrasses ( Labridae), in the order Perciformes, but molecular studies have contradicted this ...

fish found in slow-moving freshwater habitats on the Pacific slope of eastern

Panama Panama ( , ; es, link=no, Panamá ), officially the Republic of Panama ( es, República de Panamá), is a transcontinental country spanning the southern part of North America and the northern part of South America. It is bordered by Cos ...

. Before it was recognized as the only member of the genus ''Isthmoheros'', it was placed in several other genera, including ''

Cichlasoma ''Cichlasoma'' is a genus of freshwater fish in the cichlid family. The genus was previously very large (a wastebasket taxon), including cichlids from North America, including Central America, and South America. Reclassification and subsequent s ...

'', ''

Vieja ''Vieja'' is a genus of cichlid fish from Central America and Mexico. The majority of the species are freshwater fish found in stagnant or slow-moving waters of southern Mexico to El Salvador, but ''V. maculicauda'', which also occurs in brack ...

'' and others, but it is not particularly closely related to any of these. The nearest relative of ''I. tuyrensis'' is '' Talamancaheros''.Říčan, O., Piálek, L., Dragová, K. & Novák, J. (2016): Diversity and evolution of the Middle American cichlid fishes (Teleostei: Cichlidae) with revised classification. ''Vertebrate Zoology, 66 (1): 1-102.'' ''I. tuyrensis'' reaches up to in

standard length Fish measurement is the measuring of individual fish and various parts of their anatomies. These data are used in many areas of ichthyology, including taxonomy and fisheries biology. Overall length * Standard length (SL) is the length of a fish m ...

and eats vegetable matter and

detritus In biology, detritus () is dead particulate organic material, as distinguished from dissolved organic material. Detritus typically includes the bodies or fragments of bodies of dead organisms, and fecal material. Detritus typically hosts commun ...

References

Heroini Fish described in 1913 Endemic fauna of Panama {{Cichlidae-stub