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''Skiffia'' is a genus of goodeid fish that contains four species, endemic to the Mesa Central area of Mexico. They typically have a limited tolerance to environmental degradation, and so are susceptible to anthropogenic disturbance. The exception to this is ''Skiffia bilineata'', which is comparatively more tolerant to eutrophication, turbidity and seasonal changes in environmental conditions. All four ''Skiffia'' species face some conservation threat and have suffered local extinctions in more than 50% of areas studied where they were previously known to have existed.〔 ''Skiffia lermae'' and ''Skiffia bilineata'' are the most widely distributed of the genus, found over the states of Michoacán, Jalisco and Guanajuato. ''Skiffia multipunctata'' has a restricted distribution in Michoacán and ''Skiffia francesae'' has been declared extinct in the wild by the IUCN.〔〔IUCN Red List - http://www.redlist.org〕 There is only one locality from which captive ''S. francesae'' stocks have been derived (Teuchitlán). Captive populations of ''S. francesae'' are maintained in a variety of locations by aquarium hobbyists, research institutes and zoos. The history of this particular species is unclear, but they are believed to have descended from one stock collected by Dr. R. Miller in 1976;〔Langhammer, J.K. (1995) ''Skiffia francesae'': A fish on the edge of tomorrow. Can we save it? ''Aquatic Survival: Bulletin of the Aquatic Conservation Network'' 4: Dec 1995.〕 it appears that no other stocks descended from independent samples from this region. ==Species== There are currently four recognized species in this genus: * ''Skiffia bilineata'' (T. H. Bean, 1887) (Twoline skiffia)〔Bean, T.H. (1887) Description of five new species of fish sent by Prof A. Dugés from the province of Guanajuato, Mexico. ''Proc. US. Nat. Mus.'' 10: 370 – 375〕 * ''Skiffia francesae'' Kingston, 1978 (Golden skiffia)〔Kingston, D.I. (1978) ''Skiffia francesae'', a new species of Goodeid fish from Western Mexico. ''Copeia'' 3: 503 – 508〕 * ''Skiffia lermae'' Meek, 1902 (Olive skiffia)〔Meek. S.E. (1902) A contribution to the ichthyology of Mexico Field Columbian Museum. ''Zoology'' 6: 63 – 1128〕 * ''Skiffia multipunctata'' (Pellegrin, 1901) (Spotted skiffia)〔Pellegin, J. (1901) Poissons reguellis par M.L. Diguet, dans l’État de Jalisco (Mexique). ''Bull. Mus. Nat. Hist. Paris'' 7: 204 – 207〕 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「Skiffia」の詳細全文を読む スポンサード リンク
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