''Astronotus crassipinnis'' is a South American

fish Fish are aquatic, craniate, gill-bearing animals that lack limbs with digits. Included in this definition are the living hagfish, lampreys, and cartilaginous and bony fish as well as various extinct related groups. Approximately 95% of li ...

in the

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 ...

family from the southern

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 Bolivi ...

and the Paraná–

Paraguay Paraguay (; ), officially the Republic of Paraguay ( es, República del Paraguay, links=no; gn, Tavakuairetã Paraguái, links=si), is a landlocked country in South America. It is bordered by Argentina to the south and southwest, Brazil to th ...

basins. It is not as well-known or common in the aquarium trade as its relative, the more northernly distributed

oscar Oscar, OSCAR, or The Oscar may refer to: People * Oscar (given name), an Irish- and English-language name also used in other languages; the article includes the names Oskar, Oskari, Oszkár, Óscar, and other forms. * Oscar (Irish mythology), ...

(''A. ocellatus''). ''A. crassipinnis'' reaches up to in length.

Etymology

The genus name '' Astronotus'' comes from the Greek words "Astra" which means ray and "Noton" means back. The species name ''crassipinnis'' comes from the Greek words "Crassus" came from the word fat and "Pinna" means fish.

In the aquarium

The species is very rare in the aquarium hobby, where they are sometimes known as "fat oscars". When they appear, they are often mistaken for the common

(''A. ocellatus'').

References

{{Taxonbar, from=Q6424995 crassipinnis Fish described in 1840 Taxa named by Johann Jakob Heckel