Olyra (fish)

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Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
Order: Siluriformes
Family: Bagridae
Genus: Olyra
McClelland, 1842
Type species
Olyra longicaudatus
McClelland, 1842

Olyra is a genus of catfishes of the family Bagridae. This genus occurs throughout South Asia and western Indochina, from India to western Thailand.[1]

In Asia, Olyra species are known as fighting catfish; they are placed in small aquaria to battle one another similar to Siamese fighting fish, and money is bet on the outcome.[2]


The genus Olyra is considered by some authorities to belong to the family Bagridae, though Olyridae is considered valid by Fishbase[3]

The taxonomic status of O. colletii has been a puzzle. It was first described in 1881 by Franz Steindachner as Heptapterus collettii and marked as neotropical in origin. With examination, though, it was determined to more closely match members of Olyra. It may even be a junior synonym of Olyra longicaudata.[1]

O. kempi is treated in some literature as a synonym of O. longicaudata.[4]


There are currently 7 recognized species in this genus:


  1. ^ a b Bockmann, F.A. & de Pinna, M.C.C. (2004). "Heptapterus collettii Steindachner, 1881: A Member of the Asian Bagrid Genus Olyra Erroneously Assigned to the Neotropical Fauna (Siluriformes: Ostariophysi)". Copeia, 2004 (3): 665–675. 
  2. ^ Linder, R.S. (2000). "The Catfishes of Asia Family Bagridae part two" (PDF). Cat Chat, 1 (2). 
  3. ^ Froese, Rainer, and Daniel Pauly, eds. (2015). "Olyridae" in FishBase. April 2015 version.
  4. ^ Ferraris, C.J.Jr. (2007). "Checklist of catfishes, recent and fossil (Osteichthyes: Siluriformes), and catalogue of siluriform primary types" (PDF). Zootaxa, 1418: 1–628. 
  5. ^ Arunachalam, M., Raja, M., Mayden, R.L. & Chandran, A. (2013): Olyra astrifera a new species of olyrid catfish from the Western Ghats, Southern India (Teleosti: Bagridae: Olyrininae) and the designation of neotype, Olyra longicaudata McClelland, 1842 from North-Eastern India. International Journal of Zoology and Research, 3 (2): 51-60.
  6. ^ Ng, H.H., Lalramliana & Lalthanzara, H. (2014): Olyra saginata, a new species of bagrid catfish (Actinopterygii: Siluriformes) from northeastern India. Zootaxa, 3821 (2): 265–272.