Animalia > Chordata > Actinopterygii > Siluriformes > Pimelodidae > Phractocephalus > Phractocephalus hemioliopterus

Phractocephalus hemioliopterus (Redtail catfish)

Synonyms: Phractocephalus bicolor; Pimelodus grunniens; Rhamdia grunniens; Silurus hemioliopterus
Language: Danish; Finnish; German; Mandarin Chinese; Portuguese; Spanish

Wikipedia Abstract

The redtail catfish, Phractocephalus hemioliopterus, is a pimelodid (long-whiskered) catfish. In Venezuela it is known as cajaro and in Brazil it is known as pirarara. It is the only extant species of the genus Phractocephalus. This fish is a common aquarium fish.
View Wikipedia Record: Phractocephalus hemioliopterus


Migration [1]  Potamodromous

Protected Areas

Name IUCN Category Area acres Location Species Website Climate Land Use
Mamirauá Sustainable Development Reserve State Sustainable Development Reserve VI 3260792 Amazonas, Brazil  
Manú National Park II 4213523 Cusco, Peru  
Noel Kempff Mercado National Park II 4006523 Bolivia  

Prey / Diet

Mylossoma duriventre (Silver Dollar fish)[2]
Pterygoplichthys multiradiatus (Sailfish catfish)[2]

Prey / Diet Overlap

Competing SpeciesCommon Prey Count
Pseudoplatystoma reticulatum (Tiger shovelnose catfish)2
Pseudoplatystoma tigrinum (Tiger sorubim)1


Inia geoffrensis (Pink River Dolphin)[3]

Institutions (Zoos, etc.)

Institution Infraspecies / Breed 
Acquario di Genova
Al-Wabra Wildlife Preservation
Artis Zoo
Biodome de Montreal
Blank Park Zoo of Des Moines
Bronx Children's Zoo
Budapest Zool.& Botanical Garden
Central Park Zoo
Denver Zoological Gardens
Fort Worth Zoological Park
Houston Zoo, Inc.
Johannesburg Zoological Gardens
John G. Shedd Aquarium
London Aquarium
Louisville Zoological Garden
Memphis Zoological Garden & Aquarium
Miami Metrozoo
Milwaukee County Zoological Gardens
Nat'l Mississippi River Museum & Aquar
Nat'l Zoological Gardens of S. Africa
National Aquarium in Baltimore Inc
Nikolaev Zoo of Nikolaev-City Council
Odense Zoologiske Have
Omaha's Henry Doorly Zoo
Ouwehand Zoo
Papiliorama Swiss Tropical Gardens
Parc de Lunaret
Parc Merveilleux
Parque Zoologico Huachipa
Permskii Zoologicheskii Sad
Pittsburgh Zoo & PPG Aquarium
Randers Regnskov
Rotterdam Zoo
San Antonio Zoological Gardens & Aquar
Sedgwick County Zoo
Smithsonian National Zoological Park
St. Paul's Como Zoo
Steinhart Aquarium (CA Acad of Science
Toledo Zoological Gardens
Tulsa Zoo & Living Museum
Universeum Science Center
West Midland Safari & Leisure Park Ltd
Zoo Dvur Kralove, a.s.
Zoo Hannover GmbH


Amazon; America, South - Inland waters; Bolivia; Brazil; Colombia; Ecuador; Guyana; Marañón; Neotropical; Orinoco; Peru; South America: Amazon and Orinoco River basins.; Venezuela;



Attributes / relations provided by
1Myers, P., R. Espinosa, C. S. Parr, T. Jones, G. S. Hammond, and T. A. Dewey. 2006. The Animal Diversity Web (online). Accessed February 01, 2010 at
2Dietary segregation among large catfishes of the Apure and Arauca Rivers, Venezuela, A. BARBARINO DUQUE AND K. O. WINEMILLER, Journal of Fish Biology (2003) 63, 410–427
3Inia geoffrensis, Robin C. Best and Vera M. F. da Silva, MAMMALIAN SPECIES No. 426, pp. 1-8 (1993)
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Abstract provided by DBpedia licensed under a Creative Commons License
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