After Carroll, 1988, and Nelson, 1994, with Recent species from Froese & Pauly, 2001 [“The Fishbase”]

<==o Mormyridae (elaephan fishes; varsinaiset norsukalat) [N: 18/198] [FB: 18/184]
   |-- Mormyrops [20]
   `--+?- Boulengeromyrus knoepffleri Taverne & Géry, 1968
      |--o Brienomyrus [10]
      |  |-- B. adustus (Fowler, 1936)
      |  |-- B. brachyistius (Gill, 1862)
      |  |-- B. curvifrons Taverne, Thys v. d. Audenaerde, Heymer & Géry, 1977
      |  |-- B. hopkinsi Taverne & Thys van den Audenaerde, 1985
      |  |-- B. kingsleyae kingsleyae (Günther, 1896)
      |  |-- B. longianalis (Boulenger, 1901)
      |  |-- B. longicaudatus Taverne, Thys v. d. Audenaerde, Heymer & Géry, 1977
      |  |-- B. niger (Günther, 1866)
      |  |-- B. sphekodes (Sauvage, 1879)
      |  `-- B. tavernei Poll, 1972
      |--o Campylomormyrus [14]
      |  |-- C. alces (Boulenger, 1920)
      |  |-- C. bredoi (Poll, 1945)
      |  |-- C. cassaicus (Poll, 1967)
      |  |-- C. christyi (Boulenger, 1920)
      |  |-- C. curvirostris (Boulenger, 1898)
      |  |-- C. elephas (Boulenger, 1898)
      |  |-- C. luapulaensis (David & Poll, 1937)
      |  |-- C. mirus (Boulenger, 1898)
      |  |-- C. numenius (Boulenger, 1898)
      |  |-- C. orycteropus Poll, Gosse & Orts, 1982
      |  |-- C. phantasticus (Pellegrin, 1927)
      |  |-- C. rhynchophorus (Boulenger, 1898)
      |  |-- C. tamandua (Günther, 1864) (Wormjawed mormyrid)
      |  `-- C. tshokwe (Poll, 1967)
      |-- Genyomyrus donnyi Boulenger, 1898
      |-- Heteromormyrus pauciradiatus (Steindachner, 1866)
      |--o Hippopotamyrus [17]
      |  |-- H. aelsbroecki (Poll, 1945)
      |  |-- H. ansorgii (Boulenger, 1905) (Slender stonebasher)
      |  |-- H. batesii (Boulenger, 1906)
      |  |-- H. castor Pappenheim, 1906
      |  |-- H. discorhynchus (Peters, 1852) (Zambezi parrotfish)
      |  |-- H. grahami (Norman, 1928)
      |  |-- H. harringtoni (Boulenger, 1905)
      |  |-- H. macrops (Boulenger, 1909)
      |  |-- H. macroterops (Boulenger, 1920)
      |  |-- H. pappenheimi (Boulenger, 1910)
      |  |-- H. paugyi Lévêque & Bigorne, 1985
      |  |-- H. pictus (Marcusen, 1864)
      |  |-- H. psittacus (Boulenger, 1897)
      |  |-- H. retrodorsalis (Nichols & Griscom, 1917)
      |  |-- H. smithersi (Määr, 1962)
      |  |-- H. weeksii (Boulenger, 1902)
      |  `-- H. wilverthi (Boulenger, 1898)
      |--o Hyperopisus bebe (Lacépède, 1803)
      |  |-- H. b. bebe (Lacépède, 1803)
      |  `-- H. b. occidentalis Günther, 1866
      |-- Isichthys henryi Gill, 1863
      |-- Ivindomyrus opdenboschi Taverne & Géry, 1975
      |-- Marcusenius [34]
      |--o Myomyrus [3]
      |  |-- M. macrodon Boulenger, 1898
      |  |-- M. macrops Boulenger, 1914
      |  `-- M. pharao Poll & Taverne, 1967
      |--o Paramormyrops [2]
      |  |-- P. gabonensis Taverne, Thys v. d. Audenaerde & Heymer, 1977
      |  `-- P. jacksoni (Poll, 1967) (Ghost stonebasher)
      |-- Petrocephalus [25]
      |-- Pollimyrus [18]
      |--o Stomatorhinus [12]
      |  |-- S. ater Pellegrin, 1924
      |  |-- S. corneti Boulenger, 1899
      |  |-- S. fuliginosus Poll, 1941
      |  |-- S. humilior Boulenger, 1899
      |  |-- S. kununguensis Poll, 1945
      |  |-- S. microps Boulenger, 1898
      |  |-- S. patrizii Vinciguerra, 1928
      |  |-- S. polli Matthes, 1964
      |  |-- S. polylepis Boulenger, 1899
      |  |-- S. puncticulatus Boulenger, 1899
      |  |-- S. schoutedeni Poll, 1945
      |  `-- S. walkeri (Günther, 1867)
      `--+-- Mormyrus [19]
         `--o Gnathonemus [4]
            |-- G. barbatus Poll, 1967
            |?- G. curvirostris 
            |-- G. echidnorhynchus Pellegrin, 1924
            |-- G. longibarbis (Hilgendorf, 1888)
            `-- G. petersii (Günther, 1862) (mustanorsukala; Elephantnose fish)

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