''Apistogrammoides pucallpaensis'' is a South American

dwarf cichlid Dwarf cichlid is a term used by fishkeeping hobbyists to describe an arbitrary assemblage of small-sized fish from the family Cichlidae. Although the grouping is widely used in the aquarium industry and hobby, the grouping has no taxonomic or ec ...

that 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 ...

. This fish is found in the western

Amazon basin The Amazon basin is the part of South America drained by the Amazon River and its tributaries. The Amazon drainage basin covers an area of about , or about 35.5 percent of the South American continent. It is located in the countries of Boli ...

, including the systems of the lower

Ucayali The Ucayali River ( es, Río Ucayali, ) is the main headstream of the Amazon River. It rises about north of Lake Titicaca, in the Arequipa region of Peru and becomes the Amazon at the confluence of the Marañón close to Nauta city. The city ...

, lower

Japurá Japurá is a municipality located in the Brazilian state of Amazonas. Its population was 2,251 (2020) and its area is 55,791 km² (21541 Mi2). It forms the Japurá microregion together with the municipality Maraã (to the east of the Japur� ...

and upper Amazon River, in

Peru , image_flag = Flag of Peru.svg , image_coat = Escudo nacional del Perú.svg , other_symbol = Great Seal of the State , other_symbol_type = Seal (emblem), National seal , national_motto = "Fi ...

, Colombia and

Brazil Brazil ( pt, Brasil; ), officially the Federative Republic of Brazil (Portuguese: ), is the largest country in both South America and Latin America. At and with over 217 million people, Brazil is the world's fifth-largest country by area ...

. It typically lives among leaf litter or floating plants in water with little or no current.Cavalcante de Oliveira, J., J. Alves de Oliveira, and D.P.C. Rossato (2019). First record of Apistogrammoides pucallpaensis Meinken, 1965 (Perciformes, Cichlidae) for Brazil, in addition to fecundity information. Acta Limnol. Bras. 31. It is the only known member of the genus ''Apistogrammoides'', but it is closely related to ''

Apistogramma ''Apistogramma'' is a large genus of freshwater fish in the family Cichlidae found in South America, but also commonly kept in aquariums. They are dwarf cichlids that mostly feed on tiny animals and have breeding behaviors that vary depending o ...

''.López-Fernández, H., R.L. Honeycutt, M.L.J. Stiassny, and K.O. Winemiller (2005). Morphology, molecules, and character congruence in the phylogeny of South American geophagine cichlids (Perciformes, Labroidei). Zoologica Scripta 34(6): 627–651.

References

Geophagini Taxa named by Herman Meinken Freshwater fish of South America Monotypic fish genera {{Cichlidae-stub