Olyra

Superregnum: Eukaryota
Cladus: Unikonta
Cladus: Opisthokonta
Cladus: Holozoa
Regnum: Animalia
Subregnum: Eumetazoa
Cladus: Bilateria
Cladus: Nephrozoa
Superphylum: Deuterostomia
Phylum: Chordata
Subphylum: Vertebrata
Infraphylum: Gnathostomata
Megaclassis: Osteichthyes
Superclassis/Classis: Actinopterygii
Classis/Subclassis: Actinopteri
Subclassis/Infraclassis: Neopterygii
Infraclassis: Teleostei
Megacohors: Osteoglossocephalai
Supercohors: Clupeocephala
Cohors: Otomorpha
Subcohors: Ostariophysi
Sectio: Otophysa
Ordo: Siluriformes

Familia: Olyridae
Genus: Olyra
Species: O. astrifera – O. burmanica – O. collettii – O. horae – O. kempi – O. longicaudata – O. praestigiosa – O. saginata
Name

Olyra McClelland, 1842

Type species: Olyra longicaudatus McClelland, 1842

References

McClelland, J.; 1842: On the fresh-water fishes collected by William Griffith, Esq., F. L. S. Madras Medical Service, during his travels under the orders of the Supreme Government of India, from 1835 to 1842. Calcutta Journal of Natural History, 2 (8): 560–589, Pls. 6, 15, 18, 21.
Ferraris, C.J., jr. 2007. Checklist of catfishes, recent and fossil (Osteichthyes: Siluriformes), and catalogue of siluriform primary types. Zootaxa 1418: 1–628. Abstract & excerpt PDF (part 1) PDF (part 2) Reference page.
Ng, H.H., Lalramliana, L. & Lalthanzara, H. 2014. Olyra saginata, a new species of bagrid catfish (Actinopterygii: Siluriformes) from northeastern India. Zootaxa 3821(2): 265–272. DOI: 10.11646/zootaxa.3821.2.6 Reference page.
Ng, H.H. & Ferraris, C.J.Jr. (2016): A new species of anguilliform catfish (Actinopterygii: Siluriformes: Bagridae) from Bangladesh and northeastern India. Zootaxa, 4079 (3): 381-387.

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]
Taxonomy

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]
Species

There are currently 8 recognized species in this genus:

Olyra astrifera Arunachalam, Raja, Mayden & Chandran, 2013
Olyra burmanica F. Day, 1872 (Long-tail catfish)
Olyra collettii (Steindachner, 1881)
Olyra horae (Prashad & Mukerji, 1929)
Olyra kempi Chaudhuri, 1912
Olyra longicaudata McClelland, 1842
Olyra praestigiosa H. H. Ng & Ferraris, 2016 [5]
Olyra saginata H. H. Ng, Lalramliana & Lalthanzara, 2014 [6]

References

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. doi:10.1643/ci-03-198r1.
Linder, R.S. (2000). "The Catfishes of Asia Family Bagridae: part two" (PDF). Cat Chat. 1 (2): 1–6. Archived from the original (PDF) on 2007-08-20.
Froese, Rainer, and Daniel Pauly, eds. (2015). "Olyridae" in FishBase. October 2015 version.
Ferraris, C.J.Jr. (2007). "Checklist of catfishes, recent and fossil (Osteichthyes: Siluriformes), and catalogue of siluriform primary types" (PDF). Zootaxa. 1418: 1–628.
Ng, H.H. & Ferraris, C.J.Jr. (2016): A new species of anguilliform catfish (Actinopterygii: Siluriformes: Bagridae) from Bangladesh and northeastern India. Zootaxa, 4079 (3): 381-387.
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. doi:10.11646/zootaxa.3821.2.6.