Squalius is een geslacht van straalvinnige vissen uit de familie van eigenlijke karpers (Cyprinidae).
Soorten Squalius agdamicus Kamensky, 1901 Squalius albus (Bonaparte, 1838) Squalius anatolicus (Bogutskaya, 1997) Squalius aphipsi (Aleksandrov, 1927) Squalius aradensis (Coelho, Bogutskaya, Rodrigues & Collares-Pereira, 1998) Squalius aristotelis Özulu? & Freyhof, 2011 Squalius cappadocicus Özulu? & Freyhof, 2011 Squalius carinus Özulu? & Freyhof, 2011 Squalius carolitertii (Doadrio, 1988) Squalius castellanus Doadrio, Perea & Alonso, 2007 Squalius cephaloides (Battalgil, 1942) Squalius cephalus (Linnaeus, 1758) – Kopvoorn Squalius cii (Richardson, 1857) Squalius ghigii (Gianferrari, 1927) Squalius illyricus Heckel & Kner, 1858 Squalius irideus (Ladiges, 1960) Squalius janae Bogutskaya & Zupan?i?, 2010 Squalius keadicus (Stephanidis, 1971) Squalius kottelati Turan, 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) Squalius orientalis Heckel, 1847 Squalius orpheus Kottelat & Economidis, 2006 Squalius pamvoticus (Stephanidis, 1939) Squalius peloponensis (Valenciennes, 1844) Squalius platyceps Zupan?i?, Mari?, Naseka & Bogutskaya, 2010 Squalius prespensis (Fowler, 1977) Squalius pyrenaicus (Günther, 1868) Squalius recurvirostris Özulu? & Freyhof, 2011 Squalius spurius Heckel, 1843 Squalius squalus (Bonaparte, 1837) Squalius svallize Heckel & Kner, 1858 Squalius torgalensis (Coelho, Bogutskaya, Rodrigues & Collares-Pereira, 1998) Squalius turcicus De Filippi, 1865 Squalius ulanus (Günther, 1899) Squalius valentinus Doadrio & Carmona, 2006 Squalius vardarensis Karaman, 1928 Squalius zrmanjae Karaman, 1928