''Ompok'' is a

genus Genus (; : genera ) is a taxonomic rank above species and below family (taxonomy), family as used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In bino ...

of fish in the family

Siluridae Siluridae is the nominate family (biology), family of catfishes in the order (biology), order Siluriformes. About 105 living species of silurids are placed in 12 or 14 genera. Although silurids occur across much of Europe and Asia, they are most ...

found in

lake A lake is often a naturally occurring, relatively large and fixed body of water on or near the Earth's surface. It is localized in a basin or interconnected basins surrounded by dry land. Lakes lie completely on land and are separate from ...

s and large

river A river is a natural stream of fresh water that flows on land or inside Subterranean river, caves towards another body of water at a lower elevation, such as an ocean, lake, or another river. A river may run dry before reaching the end of ...

s throughout South and

Southeast Asia Southeast Asia is the geographical United Nations geoscheme for Asia#South-eastern Asia, southeastern region of Asia, consisting of the regions that are situated south of China, east of the Indian subcontinent, and northwest of the Mainland Au ...

Taxonomy

The genus is recognized to be paraphyletic. The

species A species () is often defined as the largest group of organisms in which any two individuals of the appropriate sexes or mating types can produce fertile offspring, typically by sexual reproduction. It is the basic unit of Taxonomy (biology), ...

of ''Ompok'' have been grouped into species groups, such as the ''Ompok bimaculatus'' group (i.e. ''O. bimaculatus'', ''O. malabaricus'' and ''O. miostoma''), the ''O. eugeneiatus'' group (i.e. ''O. eugeneiatus'' and ''O. pinnatus''), the ''O. hypophthalmus'' group (i.e. ''O. hypophthalmus'', ''O. rhabdinurus'' and ''O. urbaini'') and the ''O. leiacanthus'' group (''O. fumidus'', ''O. jaynei'' and ''O. leiacanthus'').Bornbusch, A.H. (1995): Phylogenetic relationships within the Eurasian catfish family Siluridae (Pisces: Siluriformes), with comments on generic validities and biogeography. ''Zoological Journal of the Linnean Society, 115 (1): 1–46.''Ng, H.H. (2003): A review of the ''Ompok hypophthalmus'' group of silurid catfishes with the description of a new species from South-East Asia. ''Journal of Fish Biology, 62 (6): 1296–1311.''Ng, H.H. (2003): ''Ompok pinnatus'', a new species of silurid catfish (Teleostei: Siluriformes: Siluridae) from mainland Southeast Asia. ''Proceedings of the Biological Society of Washington, 116 (1): 47-51.'' On the other hand, the monophyly of these species groups is not strong enough to reassign species to other genera.Ng, H.H. & Tan, H.H. (2004): ''Ompok platyrhynchus'', a new silurid catfish (Teleostei: Siluridae) from Borneo. ''Zootaxa, 580: 1–11.'' The ''O. eugeneiatus'' group is likely to be more closely related to '' Kryptopterus'' than the other ''Ompok'' species. According to Ferraris ''O. eugeneiatus'' has been reclassified into ''Kryptopterus'', however ''O. pinnatus'' has not.Ferraris, C.J.Jr. (2007)
Checklist of catfishes, recent and fossil (Osteichthyes: Siluriformes), and catalogue of siluriform primary types.
''Zootaxa, 1418: 1–628.''

Species

There are currently 28 recognized species in this genus: * '' Ompok argestes'' Sudasinghe & Meegaskumbura, 2016Sudasinghe, H. & Meegaskumbura, M. (2016): ''Ompok argestes'', a new species of silurid catfish endemic to Sri Lanka (Teleostei: Siluridae). ''Zootaxa, 4158 (2): 261–271.'' (Wetzone butter catfish) * ''

Ompok bimaculatus ''Ompok bimaculatus'', known as butter catfish, is a species from the Siluridae, sheatfish Family (biology), family native to Asian countries such as Bangladesh, India, Pakistan, and Sri Lanka, but recently identified in Myanmar. It also indetif ...

'' ( Bloch, 1794) (Butter catfish) * '' Ompok binotatus'' H. H. Ng, 2002 * '' Ompok borneensis'' ( Steindachner, 1901) * '' Ompok brevirictus'' H. H. Ng & Hadiaty, 2009 * '' Ompok canio'' ( F. Hamilton, 1822) * '' Ompok ceylonensis'' ( Günther, 1864) (Dryzone butter catfish) * '' Ompok eugeneiatus'' ( Vaillant, 1893) (Malay glass catfish) * '' Ompok fumidus'' T. H. T. Tan & P. K. L. Ng, 1996 * '' Ompok goae'' (Haig, 1952) * '' Ompok hypophthalmus'' ( Bleeker, 1846) * '' Ompok javanensis'' ( Hardenberg, 1938) * '' Ompok jaynei'' Fowler, 1905 * '' Ompok karunkodu'' H. H. Ng, 2013 Ng, H.H. (2013): ''Ompok karunkodu'', a new catfish (Teleostei: Siluridae) from southern India. ''Zootaxa, 3694 (2): 161–166.'' * ''

Ompok leiacanthus ''Ompok'' is a genus of fish in the family (biology), family Siluridae found in lakes and large rivers throughout South Asia, South and Southeast Asia. Taxonomy The genus is recognized to be paraphyly, paraphyletic. The species of ''Ompok'' have ...

'' ( Bleeker, 1853) * '' Ompok malabaricus'' ( Valenciennes, 1840) (Goan catfish) * '' Ompok miostoma'' Vaillant, 1902 * '' Ompok pabda'' ( F. Hamilton, 1822) (Pabdah catfish) * '' Ompok pabo'' ( F. Hamilton, 1822) (Pabo catfish) * '' Ompok pinnatus'' H. H. Ng, 2003 (Long-fin glass catfish) * '' Ompok platyrhynchus'' H. H. Ng & H. H. Tan, 2004 * '' Ompok pluriradiatus'' H. H. Ng, 2002 * '' Ompok rhadinurus'' H. H. Ng, 2003 * '' Ompok sabanus'' Inger & P. K. Chin, 1959 * '' Ompok siluroides'' Lacépède, 1803 * '' Ompok supernus'' H. H. Ng, 2008 * '' Ompok urbaini'' ( P. W. Fang & Chaux, 1949) * '' Ompok weberi'' ( Hardenberg, 1936)

References

{{Taxonbar, from=Q2022774 Siluridae Fish of South Asia Fish of Southeast Asia Taxa named by Bernard Germain de Lacépède Freshwater fish genera Catfish genera