After Froese & Pauly, 2001 [“The Fishbase”]

<==o Clarias Plioc. R. SAs. Af. Pleist. R. EInd. (konnamonnit) [48]
   |-- C. abbreviatus Valenciennes, 1840
   |-- C. agboyiensis Sydenham, 1980
   |-- C. albopunctatus Nichols & La Monte, 1953
   |-- C. alluaudi Boulenger, 1906 (Alluaud's catfish)
   |-- C. angolensis Steindachner, 1866
   |-- C. anguillaris (Linnaeus, 1758) (Mudfish)
   |-- C. batrachus (Linnaeus, 1758) (konnamonni; Walking catfish)
   |-- C. batu Lim & Ng, 1999
   |-- C. brachysoma Günther, 1864
   |-- C. buettikoferi Steindachner, 1894
   |-- C. buthupogon Sauvage, 1879
   |-- C. camerunensis Lönnberg, 1895
   |-- C. cataractus (Fowler, 1939)
   |-- C. cavernicola Trewavas, 1936 (Cave catfish)
   |-- C. dayi Hora, 1936
   |-- C. dhonti (Boulenger, 1920)
   |-- C. dumerilii Steindachner, 1866
   |-- C. dussumieri Valenciennes, 1840
   |-- C. ebriensis Pellegrin, 1920
   |-- C. engelseni (Johnsen, 1926)
   |-- C. fuscus (Lacépède, 1803) (Whitespotted clarias)
   |-- C. gabonensis Günther, 1867
   |-- C. gariepinus (Burchell, 1822) (North African catfish)
   |-- C. hilli Fowler, 1936
   |-- C. jaensis Boulenger, 1909
   |--o C. laeviceps Gill, 1862 (Catfish)
   |  |-- C. l. dialonensis Daget, 1962
   |  `-- C. l. laeviceps Gill, 1862 (Catfish)
   |-- C. lamottei Daget & Planquette, 1967
   |-- C. leiacanthus Bleeker, 1851
   |-- C. liocephalus Boulenger, 1898 (Smoothhead catfish)
   |-- C. longior Boulenger, 1907
   |-- C. maclareni Trewavas, 1962
   |-- C. macrocephalus Günther, 1864
   |-- C. macromystax Günther, 1864
   |-- C. meladerma Bleeker, 1846 (Blackskin catfish)
   |-- C. nebulosus Deraniyagala, 1958
   |-- C. ngamensis Castelnau, 1861 (Blunt-toothed African catfish)
   |-- C. nieuhofii Valenciennes, 1840
   |-- C. nigromarmoratus Poll, 1967
   |-- C. olivaceus Fowler, 1904
   |-- C. pachynema Boulenger, 1903
   |-- C. planiceps Ng, 1999
   |-- C. platycephalus Boulenger, 1902
   |-- C. salae Hubrecht, 1881
   |-- C. stappersii Boulenger, 1915 (Blotched catfish)
   |-- C. submarginatus Peters, 1882
   |-- C. teysmanni Bleeker, 1857
   |-- C. theodorae Weber, 1897 (Snake catfish)
   `-- C. werneri Boulenger, 1906

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