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

<==o Cottoidei
   |-- Cyclopteroidea [Cyclopteridae sensu Froese & Pauly, 2001 [FishBase]] (imukalat)
   `--o Cottoidea
      |-- Rhamphocottus richardsoni Günther, 1874 [Rhamphocottidae] (Grunt sculpin)
      `--+--o Ereuniidae
         |  |-- Ereunias grallator Jordan & Snyder, 1901
         |  `--o Marukawichthys [2]
         |     |-- M. ambulator Sakamoto, 1931
         |     `-- M. pacificus Yabe, 1983
         `--+== Cottidae [Icelidae] [incl. Cottocomephoridae, Abyssocottidae, and Comephoridae] (simput, jääsimput; sculpins) [N: 70/300] [FB: 62/210]
            |--+?- Hemitripteridae [3/8]
            |  `-- Agonidae (partasimput)
            |-- Psychrolutidae (pallosimput) [N: 7/29] [FB: 10/30]
            `-- Bathylutichthys taranetzi Balushkin & Voskoboinikova, 1990 [Bathylutichthyidae]

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