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''Squalius'' is a ray-finned fish genus in the family Cyprinidae, containing the European chubs (the "European chub" proper is ''S. cephalus''). This genus belongs to the subfamily Leuciscinae as other chubs and daces generally do. The Eurasian daces, ''Leuciscus'', are close relatives. The present genus was formerly entirely included there, and their delimitation with respect to each other is somewhat uncertain. A number of species have in recent times been moved from one genus to the other. Generally, ''Leuciscus'' in the modern sense is widespread across Eurasia, whereas ''Squalius'' is almost limited to Europe proper. Hybridization is not rare in the Cyprinidae, including this genus. ''S. alburnoides'' is known to be of ancient hybrid origin, with the paternal lineage deriving from a prehistoric species related to ''Anaecypris''; the latter mated with ancestral ''S. pyrenaicus''. Present-day ''S. alburnoides'' mates with sympatric congeners of other species.〔Sousa-Santos, C.; Collares-Pereira, M.J. & Almada, V. (2007): Reading the history of a hybrid fish complex from its molecular record. ''Mol. Phylogenet. Evol.'' 45(3) 981–996. (HTML fulltext)〕 ==Species== The 46 currently recognized species in this genus are:〔 * ''Squalius adanaensis'' Turan, Kottelat & Doğan, 2013〔Turan, D., Kottelat, M. & Dogan, E. (2013): Two new species of ''Squalius'', ''S. adanaensis'' and ''S. seyhanensis'' (Teleostei: Cyprinidae), from the Seyhan River in Turkey. ''Zootaxa, 3637 (3): 308–324.''〕 * ''Squalius agdamicus'' Kamensky, 1901 * ''Squalius albus'' (Bonaparte, 1838) * ''Squalius anatolicus'' (Bogutskaya, 1997) * ''Squalius aphipsi'' (Aleksandrov, 1927) (Aphips chub) * ''Squalius aradensis'' (M. M. Coelho, Bogutskaya, Rodrigues & Collares-Pereira, 1998) * ''Squalius aristotelis'' Özuluğ & Freyhof, 2011 * ''Squalius cappadocicus'' Özuluğ & Freyhof, 2011 * ''Squalius carinus'' Özuluğ & Freyhof, 2011 * ''Squalius carolitertii'' (Doadrio, 1988) (bordallo) * ''Squalius castellanus'' Doadrio, Perea & Fernando Alonso, 2007 * ''Squalius cephaloides'' (Battalgil, 1942) * ''Squalius cephalus'' (Linnaeus, 1758) (European chub, fat chub, round chub, chevin, pollard) * ''Squalius cii'' (J. Richardson, 1857) * ''Squalius ghigii'' (Gianferrari, 1927) * ''Squalius illyricus'' Heckel & Kner, 1858 * ''Squalius irideus'' (Ladiges, 1960) * ''Squalius janae'' Bogutskaya & Zupančič, 2010 * ''Squalius keadicus'' (Stephanidis, 1971) (Menida) * ''Squalius kottelati'' Turan, B. T. Yilmaz & Kaya, 2009 * ''Squalius laietanus'' Doadrio, Kottelat & de Sostoa, 2007 * ''Squalius lepidus'' Heckel, 1843 * ''Squalius lucumonis'' (Bianco, 1983) * ''Squalius malacitanus'' Doadrio & Carmona, 2006 * ''Squalius microlepis'' Heckel, 1843 * ''Squalius moreoticus'' (Stephanidis, 1971) (Stymphalia chub) * ''Squalius orientalis'' Heckel, 1847 * ''Squalius orpheus'' Kottelat & Economidis, 2006 * ''Squalius pamvoticus'' (Stephanidis, 1939) (Pamvotis chub) * ''Squalius peloponnensis'' (Valenciennes, 1844) (Peloponnese chub) * ''Squalius platyceps'' Zupančič, Marić, Naseka & Bogutskaya, 2010 * ''Squalius prespensis'' (Fowler, 1977) * ''Squalius pyrenaicus'' (Günther, 1868) * ''Squalius recurvirostris'' Özuluğ & Freyhof, 2011 * ''Squalius seyhanensis'' Turan, Kottelat & Doğan, 2013〔 * ''Squalius spurius'' Heckel, 1843 * ''Squalius squaliusculus'' Kessler, 1872 (Syr-Darya dace) * ''Squalius squalus'' (Bonaparte, 1837) * ''Squalius svallize'' Heckel & Kner, 1858 * ''Squalius tenellus'' Heckel, 1843 * ''Squalius torgalensis'' (M. M. Coelho, Bogutskaya, Rodrigues & Collares-Pereira, 1998) * ''Squalius turcicus'' De Filippi, 1865 * ''Squalius ulanus'' (Günther, 1899) * ''Squalius valentinus'' Doadrio & Carmona, 2006 * ''Squalius vardarensis'' S. L. Karaman, 1928 * ''Squalius zrmanjae'' S. L. Karaman, 1928 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「Squalius」の詳細全文を読む スポンサード リンク
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