• Tachys Dejean, 1821
• Tachys scutellaris (Stephens, 1828)
• Tachysoma Stokes, 1887
• Tachysoma agile Stokes, 1887 accepted as Tachysoma pellionellum (Müller, 1773) Borror, 1972
• Tachysoma agilis Stokes, 1887 accepted as Tachysoma pellionellum (Müller, 1773) Borror, 1972
• Tachysoma balatonica Gellért & Tamás, 1958
• Tachysoma bicirratum (Foissner, Blatterer, Berger & Kohmann, 1991) Foissner, Blatterer, Berger & Kohmann, 1991, 1991
• Tachysoma chilensis (Bürger, 1905) Berger, 1999
• Tachysoma dragescoi Song & Wilbert, 1997
• Tachysoma dubia (Gellért, 1956) Borror, 1972 accepted as Cyrtohymena muscorum (Kahl, 1932) Foissner, 1989
• Tachysoma furcata Kahl, 1932 accepted as Tachysoma bicirratum (Foissner, Blatterer, Berger & Kohmann, 1991) Foissner, Blatterer, Berger & Kohmann, 1991, 1991
• Tachysoma furcatum Kahl, 1932 accepted as Tachysoma bicirratum (Foissner, Blatterer, Berger & Kohmann, 1991) Foissner, Blatterer, Berger & Kohmann, 1991, 1991
• Tachysoma fusiformis Gelei & Szabados, 1950 accepted as Oxytricha setigera Stokes, 1891
• Tachysoma granuliferum Berger & Foissner, 1987
• Tachysoma humicola Gellért, 1957
• Tachysoma humicola subsp. humicola Gellért, 1957 accepted as Tachysoma humicola Gellért, 1957
• Tachysoma humicola subsp. longisetum Foissner, 1998 accepted as Tachysoma humicola Gellért, 1957
• Tachysoma hyalina Gellért, 1957 accepted as Lamtostylides hyalinus (Berger, Foissner & Adam, 1984) Berger, 2008
• Tachysoma longa Hemberger, 1985 accepted as Lamtostyla longa (Hemberger, 1985) Berger & Foissner, 1988
• Tachysoma mirabile Stokes, 1887 accepted as Tachysoma pellionellum (Müller, 1773) Borror, 1972
• Tachysoma mirabilis Stokes, 1887 accepted as Tachysoma pellionellum (Müller, 1773) Borror, 1972
• Tachysoma ovata Song & Wilbert, 1997
• Tachysoma parvistyla Stokes, 1887
• Tachysoma parvulum Corliss & Snyder, 1986 accepted as Notocephalus parvulus (Corliss & Snyder, 1986) Petz, Song & Wilbert, 1995
• Tachysoma pellionella (Stein, 1859) Kahl, 1930-5
• Tachysoma pellionellum (Müller, 1773) Borror, 1972
• Tachysoma perisincirra Hemberger, 1985 accepted as Lamtostyla perisincirra (Hemberger, 1985) Berger & Foissner, 1987
• Tachysoma raptans Hemberger, 1985 accepted as Lamtostyla raptans (Hemberger, 1985) Foissner, 1997
• Tachysoma rigescens (Kahl, 1932) Borror, 1972
• Tachysoma saltans (Cohn, 1866) Borror, 1972 accepted as Oxytricha saltans (Cohn, 1866) Rees, 1881
• Tachysoma siseris (Vuxanovici, 1963) Stiller, 1974 accepted as Oxytricha siseris Vuxanovici, 1963
• Tachysoma terricola Hemberger, 1985
• Tachysoniscus Verhoeff, 1930
• Tachysoniscus austriacus (Verhoeff, 1908)
• Tachysurus Lacepède, 1803
• Tachysurus acutirostris (Day, 1877) accepted as Arius acutirostris Day, 1877
• Tachysurus adiposalis (Oshima, 1919)
• Tachysurus africanus (Günther, 1867) accepted as Arius africanus Günther, 1867
• Tachysurus argentivittatus (Regan, 1905)
• Tachysurus argyropleuron (Valenciennes, 1840) accepted as Plicofollis argyropleuron (Valenciennes, 1840)
• Tachysurus arius (Hamilton, 1822) accepted as Arius arius (Hamilton, 1822)
• Tachysurus atroplumbeus Fowler, 1931 accepted as Amphiarius rugispinis (Valenciennes, 1840)
• Tachysurus aurantiacus (Temminck & Schlegel, 1846)
• Tachysurus barbus (Lacepède, 1803) accepted as Genidens barbus (Lacepède, 1803)
• Tachysurus berneyi Whitley, 1941 accepted as Neoarius berneyi (Whitley, 1941)
• Tachysurus brashnikowi (Berg, 1907)
• Tachysurus brevirostris (Nguyen, 2005) accepted as Leiocassis brevirostris Nguyen, 2005
• Tachysurus broadbenti Ogilby, 1908 accepted as Plicofollis argyropleuron (Valenciennes, 1840)
• Tachysurus burmanicus (Day, 1870) accepted as Cochlefelis burmanicus (Day, 1870)
• Tachysurus caelatus (Valenciennes, 1840) accepted as Nemapteryx caelata (Valenciennes, 1840)
• Tachysurus capellonis (Steindachner, 1867) accepted as Carlarius parkii (Günther, 1864)
• Tachysurus capellonsis (Steindachner, 1867) accepted as Carlarius parkii (Günther, 1864)
• Tachysurus crossocheilus (Bleeker, 1846) accepted as Plicofollis tonggol (Bleeker, 1846)
• Tachysurus dispar (Herre, 1926) accepted as Arius dispar Herre, 1926
• Tachysurus dumerili (Bleeker, 1864)
• Tachysurus dussumieri (Valenciennes, 1840) accepted as Plicofollis dussumieri (Valenciennes, 1840)
• Tachysurus eigenmanni (Gilbert & Starks, 1904) accepted as Ariopsis seemanni (Günther, 1864)
• Tachysurus emmelane Gilbert, 1898 accepted as Cathorops multiradiatus (Günther, 1864)
• Tachysurus equatorialis Starks, 1906 accepted as Cathorops multiradiatus (Günther, 1864)
• Tachysurus evermanni Gilbert & Starks, 1904 accepted as Cathorops fuerthii (Steindachner, 1876)
• Tachysurus feliceps (Valenciennes, 1840) accepted as Galeichthys feliceps Valenciennes, 1840
• Tachysurus fulvidraco (Richardson, 1846)
• Tachysurus furthii (Steindachner, 1876) accepted as Cathorops fuerthii (Steindachner, 1876)
• Tachysurus gagora (Hamilton, 1822) accepted as Arius gagora (Hamilton, 1822)
• Tachysurus gambensis (Bowdich, 1825) accepted as Carlarius parkii (Günther, 1864)
• Tachysurus gigas (Boulenger, 1911) accepted as Carlarius gigas (Boulenger, 1911)
• Tachysurus godfreyi Whitley, 1941 accepted as Hexanematichthys mastersi (Ogilby, 1898)
• Tachysurus harmandi (Sauvage, 1880) accepted as Hemiarius harmandi Sauvage, 1880
• Tachysurus herzensteini (Berg, 1907)
• Tachysurus heudelotii (Valenciennes, 1840) accepted as Carlarius heudelotii (Valenciennes, 1840)
• Tachysurus hoi (Pellegrin & Fang, 1940)
• Tachysurus ichikawai (Okada & Kubota, 1957) accepted as Coreobagrus ichikawai Okada & Kubota, 1957
• Tachysurus intermedius (Nichols & Pope, 1927) accepted as Pelteobagrus intermedius (Nichols & Pope, 1927)
• Tachysurus jella (Day, 1877) accepted as Arius jella Day, 1877
• Tachysurus koreanus (Uchida, 1990) accepted as Pseudobagrus koreanus Uchida, 1990
• Tachysurus kyphus (Mai, 1978) accepted as Pseudobagrus kyphus Mai, 1978
• Tachysurus lagoensis (Pfaff, 1933) accepted as Carlarius latiscutatus (Günther, 1864)
• Tachysurus lani Cheng, Shao, López & Zhang, 2021
• Tachysurus leiotetocephalus (Bleeker, 1846) accepted as Plicofollis nella (Valenciennes, 1840)
• Tachysurus liropus Bristol, 1897 accepted as Cathorops liropus (Bristol, 1897)
• Tachysurus longispinalis (Nguyen, 2005)
• Tachysurus machadoi Miranda Ribeiro, 1918 accepted as Genidens machadoi (Miranda Ribeiro, 1918)
• Tachysurus macronotacanthus (Bleeker, 1846) accepted as Nemapteryx macronotacantha (Bleeker, 1846)
• Tachysurus maculatus (Thunberg, 1792) accepted as Arius maculatus (Thunberg, 1792)
• Tachysurus madagascariensis (Vaillant, 1894) accepted as Arius madagascariensis Vaillant, 1894
• Tachysurus melanochir (Bleeker, 1852) accepted as Cephalocassis melanochir (Bleeker, 1852)
• Tachysurus mercatoris (Poll, 1949) accepted as Carlarius heudelotii (Valenciennes, 1840)
• Tachysurus mochadoi Miranda Ribeiro, 1918 accepted as Genidens machadoi (Miranda Ribeiro, 1918)
• Tachysurus nenga (Hamilton, 1822) accepted as Nemapteryx nenga (Hamilton, 1822)
• Tachysurus nitidus (Sauvage & Dabry de Thiersant, 1874)
• Tachysurus nuchalis (Günther, 1864) accepted as Cathorops nuchalis (Günther, 1864)
• Tachysurus nudiceps (Sauvage, 1883)
• Tachysurus platystomus (Day, 1877) accepted as Plicofollis platystomus (Day, 1877)
• Tachysurus polystaphylodon (Bleeker, 1846) accepted as Plicofollis polystaphylodon (Bleeker, 1846)
• Tachysurus sagor (Hamilton, 1822) accepted as Hexanematichthys sagor (Hamilton, 1822)
• Tachysurus satparanus (Chaudhuri, 1916) accepted as Plicofollis layardi (Günther, 1866)
• Tachysurus sciurus (Smith, 1931) accepted as Arius microcephalus Bleeker, 1855
• Tachysurus serratus (Day, 1877) accepted as Netuma thalassina (Rüppell, 1837)
• Tachysurus sinensis Lacepède, 1803
• Tachysurus sona (Hamilton, 1822) accepted as Sciades sona (Hamilton, 1822)