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''Channa'' is a genus of the Channidae family of snakehead fish. This genus contains 34 scientifically described species, but the most well known are probably the northern snakehead (''Channa argus'') and the giant snakehead (''Channa micropeltes''). ''Channa ''has a wide natural distribution extending from Iran in the west, to China in the east, and parts of Siberia in the Far East. They are one of the most common staple food fish in Thailand, Cambodia, Vietnam, and other South East Asian countries, where they are extensively cultured. Apart from their importance as a food fish, snakeheads are also consumed as a therapeutic for wound healing as well as reducing post-operative pain and discomfort, and collected for the international aquarium pet trade. The diets of various species of ''Channa'' include fish, frogs, snakes, rodents, birds, and insects. Some can move on land like snakes, and breathe air. The taxonomy of the genus ''Channa'' is incomplete and a comprehensive revision of the family has not been performed. A phylogenetic study in 2010 has also indicated the likelihood of the existence of more undescribed species of channids in South East Asia.〔Adamson E. A. S., Hurwood D. A., Mather P. A. (2010): (A reappraisal of the evolution of Asian snakehead fishes (Pisces, Channidae) using molecular data from multiple genes and fossil calibration. ) ''Molecular Phylogenetics and Evolution, 56 (2), Pages 707–717''〕 In June 2011, the Malabar snakehead ''Channa diplogramma'' from peninsular India was shown to be a distinct species, 146 years after its initial description and 134 years after it was synonymised with ''C. micropeltes'', establishing it is an endemic species of peninsular India. The study also suggested that the species shared a most recent common ancestor with ''C. micropeltes'', around 9.52 to 21.76 MYA.〔Benziger, A., Philip, S., Raghavan, R., Anvar Ali, P. H., Sukumaran, M., et al. (2011) (Unraveling a 146 Years Old Taxonomic Puzzle: Validation of Malabar Snakehead, Species-Status and Its Relevance for Channid Systematics and Evolution. ) ''PLoS ONE 6(6): e21272. doi:10.1371/journal.pone.0021272''〕〔 Li, X., Musikasinthorn, P., Kumazawa, Y. (2006): Molecular phylogenetic analyses of snakeheads (Perciformes: Channidae) using mitochondrial DNA sequences. ''Ichthyological Research 53 (2) pp 148-159''〕 In Assamese it is called ''goroi''. In Malayalam it is called ''varal'' or ''braal''. ==Species== The 34 currently recognized species in this genus are:〔 * ''Channa amphibeus'' (McClelland, 1845) (Borna snakehead) * ''Channa andrao'' Britz, 2013〔Britz, R. (2013): ''Channa andrao'', a new species of dwarf snakehead from West Bengal, India (Teleostei: Channidae). ''Zootaxa, 3731 (2): 287–294.''〕 * ''Channa argus'' (Cantor, 1842) * * ''C. a. argus'' (Cantor, 1842) (northern snakehead) * * ''C. a. warpachowskii'' (L. S. Berg, 1909) (Amur snakehead) * ''Channa asiatica'' (Linnaeus, 1758) (small snakehead) * ''Channa aurantimaculata'' Musikasinthorn, 2000 * ''Channa bankanensis'' (Bleeker, 1853) * ''Channa baramensis'' (Steindachner, 1901) * ''Channa barca'' (F. Hamilton, 1822) (Barca snakehead) * ''Channa bleheri'' Vierke, 1991 (rainbow snakehead) * ''Channa burmanica'' B. L. Chaudhuri, 1919 * ''Channa cyanospilos'' (Bleeker, 1853) * ''Channa diplogramma'' (F. Day, 1865) * ''Channa gachua'' (F. Hamilton, 1822) (dwarf snakehead) * ''Channa harcourtbutleri'' (Annandale, 1918) (Burmese snakehead) * ''Channa hoaluensis'' V. H. Nguyễn, 2011 * ''Channa longistomata'' V. H. Nguyễn, T. H. T. Nguyen & T. D. P. Nguyen, 2012 * ''Channa lucius'' (G. Cuvier, 1831) * ''Channa maculata'' (Lacépède, 1801) (blotched snakehead) * ''Channa marulioides'' (Bleeker, 1851) * ''Channa marulius'' (F. Hamilton, 1822) (Great snakehead) * ''Channa melanoptera'' (Bleeker, 1855) * ''Channa melanostigma'' Geetakumari & Vishwanath, 2011 * ''Channa melasoma'' (Bleeker, 1851) (black snakehead) * ''Channa micropeltes'' (G. Cuvier, 1831) (Indonesian snakehead, giant snakehead, red snakehead) * ''Channa ninhbinhensis'' V. H. Nguyễn, 2011 * ''Channa nox'' C. G. Zhang, Musikasinthorn & K. Watanabe, 2002 * ''Channa orientalis'' Bloch & J. G. Schneider, 1801 (walking snakehead) * ''Channa ornatipinnis'' Britz, 2008 * ''Channa panaw'' Musikasinthorn, 1998 * ''Channa pleurophthalma'' (Bleeker, 1851) * ''Channa pulchra'' Britz, 2007 * ''Channa punctata'' (Bloch, 1793) (spotted snake head, green snake head) * ''Channa stewartii'' (Playfair (fr), 1867) (Assamese snakehead) * ''Channa striata'' (Bloch, 1793) (snakehead murrel, chevron snakehead, striped snakehead) 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Channa」の詳細全文を読む スポンサード リンク
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