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

<==o Melamphaidae (suurisuomukalat; bigscale fishes, ridgeheads) [5/33]
   |--o Melamphaes [19]
   |  |-- M. acanthomus Ebeling, 1962 (Slender bigscale)
   |  |-- M. danae Ebeling, 1962 (Bigscale)
   |  |-- M. eulepis Ebeling, 1962
   |  |-- M. hubbsi Ebeling, 1962
   |  |-- M. indicus Ebeling, 1962
   |  |-- M. janae Ebeling, 1962
   |  |-- M. laeviceps Ebeling, 1962
   |  |-- M. leprus Ebeling, 1962
   |  |-- M. longivelis Parr, 1933
   |  |-- M. lugubris Gilbert, 1891 (Highsnout melamphid)
   |  |-- M. macrocephalus Parr, 1931
   |  |-- M. microps (Günther, 1878)
   |  |-- M. parvus Ebeling, 1962 (Little bigscale)
   |  |-- M. polylepis Ebeling, 1962
   |  |-- M. pumilus Ebeling, 1962
   |  |-- M. simus Ebeling, 1962 (Ridgehead)
   |  |-- M. spinifer Ebeling, 1962
   |  |-- M. suborbitalis (Gill, 1883)
   |  `-- M. typhlops (Lowe, 1843)
   |--o Poromitra [5]
   |  |-- P. capito Goode & Bean, 1883
   |  |-- P. crassa Parin & Ebeling, 1980
   |  |-- P. crassiceps (Günther, 1878) (Crested bigscale)
   |  |-- P. megalops (Lütken, 1877)
   |  `-- P. oscitans Ebeling, 1975 (Yawning)
   |--o Scopelopteryx [5]
   |  |-- S. microlepis (Norman, 1937)
   |  |-- S. nycterinus (Gilbert, 1915)
   |  |-- S. opisthopterus (Parr, 1933)
   |  |-- S. robustus (Günther, 1887) (Longjaw bigscale)
   |  `-- S. rubriventer (Koefoed, 1953)
   |--o Scopelogadus U. Mioc. NA. R. Oc. [3]
   |  |-- S. beanii (Günther, 1887)
   |  |--o S. mizolepis (Günther, 1878)
   |  |  |-- S. m. bispinosus (Gilbert, 1915) (Twospine bigscale)
   |  |  `-- S. m. mizolepis (Günther, 1878)
   |  `-- S. unispinis Ebeling & Weed, 1963
   `-- Sio nordenskjoeldii (Lönnberg, 1905)

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