After Nelson, 1994, and Kinziger, Wood & Neely, 2005 (fig. 1), with Recent species from Froese & Pauly, 2001 [“The Fishbase”]

<==o Cottidae [Icelidae] [incl. Cottocomephoridae, Abyssocottidae, and Comephoridae] (simput, jääsimput; sculpins) [N: 70/300] [FB: 62/210]
   |?- †Eocottus veronensis M. Eoc. Eu.
   |?- †Paraperca Olig. Eu. 
   |?- †Cottopsis Olig. SWAs. 
   |?- †Kerocottus Mioc.-Plioc. NA. 
   |?- †Lepidocottus ariens L. Olig. Eu.
   |?- †Lirosceles Mioc. NA.
   |?- Alcichthys alcicornis (Herzenstein, 1890)
   |?-o Antipodocottus [4]
   |  |-- A. elegans Fricke & Brunken, 1984
   |  |-- A. galatheae Bolin, 1952
   |  |-- A. megalops DeWitt, 1969
   |  `-- A. mesembrinus (Fricke & Brunken, 1983)
   |?- Archaulus biseriatus Gilbert & Burke, 1912 (Scaled sculpin)
   |?- Argyrocottus zanderi Herzenstein, 1892
   |?- Artedielloides auriculatus Soldatov, 1922
   |?-o Artediellus [9]
   |  |-- A. atlanticus Jordan & Evermann, 1898 (Atlantic hookear sculpin)
   |  |-- A. camchaticus Gilbert & Burke, 1912
   |  |--o A. dydymovi Soldatov, 1915
   |  |  |-- A. d. dydymovi Soldatov, 1915
   |  |  `-- A. d. schmidti Soldatov, 1915
   |  |-- A. gomojunovi Taranetz, 1933
   |  |-- A. miacanthus Gilbert & Burke, 1912
   |  |-- A. ochotensis Gilbert & Burke, 1912
   |  |-- A. pacificus Gilbert, 1896 (Hookhorn sculpin)
   |  |-- A. scaber Knipowitsch, 1907 (Hamecon)
   |  `-- A. uncinatus (Reinhardt, 1835) (Arctic hookear sculpin)
   |?-o Artedius [5]
   |  |-- A. corallinus (Hubbs, 1926) (Coralline sculpin)
   |  |-- A. fenestralis Jordan & Gilbert, 1883 (Padded sculpin)
   |  |-- A. harringtoni (Starks, 1896) (Scalyhead sculpin)
   |  |-- A. lateralis (Girard, 1854) (Smoothhead sculpin)
   |  `-- A. notospilotus Girard, 1856 (Bonehead sculpin)
   |?- Ascelichthys rhodorus Jordan & Gilbert, 1880 (Rosylip sculpin)
   |?- Asemichthys taylori Gilbert, 1912 (Spinynose sculpin)
   |?-o Astrocottus [3]
   |  |-- A. leprops Bolin, 1936
   |  |-- A. matsubarae Katayama, 1942
   |  `-- A. oyamai Watanabe, 1958
   |?- Atopocottus tribranchius Bolin, 1936
   |?-o Bero [2]
   |  |-- B. elegans (Steindachner, 1881)
   |  `-- B. zanclus Snyder, 1911
   |?- Chitonotus pugetensis (Steindachner, 1876) (Roughback sculpin)
   |?-o Clinocottus [5]
   |  |-- C. acuticeps (Gilbert, 1896) (Sharpnose sculpin)
   |  |-- C. analis (Girard, 1858) (Woolly sculpin)
   |  |-- C. embryum (Jordan & Starks, 1895) (Calico sculpin)
   |  |-- C. globiceps (Girard, 1858) (Mosshead sculpin)
   |  `-- C. recalvus (Greeley, 1899) (Bald sculpin)
   |?-o Cottiusculus
   |  |-- C. gonez Jordan, 1904
   |  `-- C. schmidti Jordan & Starks, 1904
   |?- Daruma sagamia Jordan & Starks, 1904
   |?-o Enophrys
   |  |-- E. bison (Girard, 1854) (Buffalo sculpin)
   |  |-- E. diceraus (Pallas, 1788) (Antlered sculpin)
   |  |-- E. lucasi (Jordan & Gilbert, 1898) (Leister sculpin)
   |  `-- E. taurina Gilbert, 1914 (Bull sculpin)
   |?-o Furcina [2]
   |  |-- F. ishikawae Jordan & Starks, 1904
   |  `-- F. osimae Jordan & Starks, 1904
   |?-o Gymnocanthus [6]
   |  |-- G. detrisus Gilbert & Burke, 1912
   |  |-- G. galeatus Bean, 1881 (Armorhead sculpin)
   |  |-- G. herzensteini Jordan & Starks, 1904
   |  |-- G. intermedius (Temminck & Schlegel, 1843)
   |  |-- G. pistilliger (Pallas, 1814) (Threaded sculpin)
   |  `-- G. tricuspis (Reinhardt, 1830) (Arctic staghorn sculpin)
   |?-o Hemilepidotus [6]
   |  |-- H. gilberti Jordan & Starks, 1904 (Gilbert's Irish Lord)
   |  |-- H. hemilepidotus (Tilesius, 1811) (Red Irish lord)
   |  |-- H. jordani Bean, 1881 (Yellow Irish lord)
   |  |-- H. papilio (Bean, 1880) (Butterfly sculpin)
   |  |-- H. spinosus Ayres, 1854 (Brown Irish lord)
   |  `-- H. zapus Gilbert & Burke, 1912 (Longfin Irish lord)
   |?-o Icelinus [9]
   |  |-- I. borealis Gilbert, 1896 (Northern sculpin)
   |  |-- I. burchami Evermann & Goldsborough, 1907 (Dusky sculpin)
   |  |-- I. cavifrons Gilbert, 1890 (Pit-head sculpin)
   |  |-- I. filamentosus Gilbert, 1890 (Threadfin sculpin)
   |  |-- I. fimbriatus Gilbert, 1890 (Fringed sculpin)
   |  |-- I. japonicus Yabe, Tsumura & Katayama, 1980
   |  |-- I. oculatus Gilbert, 1890 (Frogmouth sculpin)
   |  |-- I. quadriseriatus (Lockington, 1880) (Yellowchin sculpin)
   |  `-- I. tenuis Gilbert, 1890 (Spotfin sculpin)
   |?-o Icelus [13]
   |  |-- I. bicornis (Reinhardt, 1840) (Twohorn sculpin)
   |  |-- I. canaliculatus Gilbert, 1896
   |  |-- I. cataphractus (Pavlenko, 1910)
   |  |-- I. euryops Bean, 1890
   |  |-- I. gilberti Taranetz, 1936
   |  |-- I. mandibularis Yabe, 1983
   |  |-- I. ochotensis Schmidt, 1927
   |  |-- I. perminovi Taranetz, 1936
   |  |-- I. rastrinoides Taranetz, 1936
   |  |-- I. spatula Gilbert & Burke, 1912 (Spatulate sculpin)
   |  |-- I. spiniger Gilbert, 1896 (Thorny sculpin)
   |  |-- I. stenosomus Andriashev, 1937
   |  `-- I. uncinalis Gilbert & Burke, 1912
   |?- Jordania zonope Starks, 1895 (Longfin sculpin)
   |?- Leiocottus hirundo Girard, 1856 (Lavender sculpin)
   |?-o Megalocottus platycephalus (Pallas, 1814) (Belligerent sculpin)
   |  |-- M. p. platycephalus (Pallas, 1814) (Belligerent sculpin)
   |  `-- M. p. taeniopterus (Kner, 1868) (Southern flathead sculpin)
   |?- Mesocottus haitej (Dybowski, 1869)
   |?- Micrenophrys lilljeborgii (Collett, 1875) (Norway bullhead)
   |?- Microcottus sellaris (Gilbert, 1896) (Brightbelly sculpin)
   |?-o Myoxocephalus Mioc.-Plioc. R. NA. [12]
   |  |-- M. aenaeus (Mitchill, 1814) (Grubby)
   |  |-- M. brandti (Steindachner, 1867)
   |  |-- M. incitus Watanabe, 1958
   |  |-- M. jaok (Cuvier, 1829) (Plain sculpin)
   |  |-- M. matsubarai Watanabe, 1958
   |  |-- M. niger (Bean, 1881) (Warthead sculpin)
   |  |-- M. octodecemspinosus (Mitchill, 1814) (Longhorn sculpin)
   |  |-- M. polyacanthocephalus (Pallas, 1814) (Great sculpin)
   |  |-- M. scorpioides (Fabricius, 1780) (Arctic sculpin)
   |  |-- M. scorpius (Linnaeus, 1758) (isosimppu; Shorthorn sculpin)
   |  |-- M. stelleri Tilesius, 1811 (Steller's sculpin)
   |  `-- M. verrucosus (Bean, 1881)
   |?-o Ocynectes [2]
   |  |-- O. maschalis Jordan & Starks, 1904
   |  `-- O. modestus Snyder, 1911
   |?-o Oligocottus [5]
   |  |-- O. latifrons (Gilbert & Thompson, 1905)
   |  |-- O. maculosus Girard, 1856 (Tidepool sculpin)
   |  |-- O. rimensis (Greeley, 1899) (Saddleback sculpin)
   |  |-- O. rubellio (Greeley, 1899) (Rosy sculpin)
   |  `-- O. snyderi Greeley, 1898 (Fluffy sculpin)
   |?- Orthonopias triacis Starks & Mann, 1911 (Snubnose sculpin)
   |?- Paricelinus hopliticus Eigenmann & Eigenmann, 1889 (Thornback sculpin)
   |?- Phallocottus obtusus Schultz, 1938 (Spineless sculpin)
   |?- Phasmatocottus ctenopterygius Bolin, 1936
   |?-o Porocottus [8]
   |  |-- P. allisi (Jordan & Starks, 1904)
   |  |-- P. bradfordi Rutter, 1898 (Pored sculpin)
   |  |-- P. camtschaticus (Schmidt, 1916)
   |  |-- P. coronatus Yabe, 1992
   |  |-- P. japonicus Schmidt, 1935
   |  |-- P. minutus (Pallas, 1814)
   |  |-- P. quadrifilis Gill, 1859
   |  `-- P. tentaculatus (Kner, 1868)
   |?-o Pseudoblennius [4]
   |  |-- P. cottoides (Richardson, 1848)
   |  |-- P. marmoratus (Döderlein, 1884)
   |  |-- P. percoides Günther, 1861
   |  `-- P. zonostigma Jordan & Starks, 1904
   |?-o Radulinus [3]
   |  |-- R. asprellus Gilbert, 1890 (Slim sculpin)
   |  |-- R. boleoides Gilbert, 1898 (Darter sculpin)
   |  `-- R. vinculus Bolin, 1950 (Smooth-gum sculpin)
   |?- Rastrinus scutiger (Bean, 1890)
   |?- Ricuzenius nudithorax Bolin, 1936
   |?-o Ruscarius [2]
   |  |-- R. creaseri (Hubbs, 1926) (Roughcheek sculpin)
   |  `-- R. meanyi Jordan & Starks, 1895 (Puget Sound sculpin)
   |?- Scorpaenichthys marmoratus Girard, 1854 (Cabezon)
   |?-o Sigmistes [2]
   |  |-- S. caulias Rutter, 1898 (Kelp sculpin)
   |  `-- S. smithi Schultz, 1938 (Arched sculpin)
   |?-o Stelgistrum [2]
   |  |-- S. beringianum Gilbert & Burke, 1912
   |  `-- S. stejnegeri Jordan & Gilbert, 1898
   |?- Stlegicottus xenogrammus Bolin, 1936
   |?-o Stlengis [3]
   |  |-- S. distoechus Bolin, 1936
   |  |-- S. misakia (Jordan & Starks, 1904)
   |  `-- S. osensis Jordan & Starks, 1904
   |?- Synchirus gilli Bean, 1890 (Manacled sculpin)
   |?- Taurocottus bergi Soldatov & Pavlenko, 1915
   |?- Taurulus bubalis (Euphrasen, 1786) [Ceratocottus bubalis?] (piikkisimppu; Longspined bullhead)
   |?- Thyriscus anoplus Gilbert & Burke, 1912
   |?- Trachidermus fasciatus Heckel, 1837 [Trachidermis]
   |?- Trichocottus [not recognized by the Fishbase]
   |?-o Triglops [9]
   |  |-- T. forficatus (Gilbert, 1896) (Scissortail sculpin)
   |  |-- T. jordani (Schmidt, 1903) (Jordan's sculpin)
   |  |-- T. macellus (Bean, 1884) (Roughspine sculpin)
   |  |-- T. metopias Gilbert & Burke, 1912 (Alaskan sculpin)
   |  |-- T. murrayi Günther, 1888 (Moustache sculpin)
   |  |-- T. nybelini Jensen, 1944 (Bigeye sculpin)
   |  |-- T. pingelii Reinhardt, 1837 (Ribbed sculpin)
   |  |-- T. scepticus Gilbert, 1896 (Spectacled sculpin)
   |  `-- T. xenostethus Gilbert, 1896 (Scaly breasted sculpin)
   |?-o Triglopsis [2]
   |  |-- T. quadricornis (Linnaeus, 1758) [Myoxocephalus quadricornis?] (härkäsimppu; Fourhorn sculpin)
   |  `-- T. thompsonii Girard, 1851 (Deepwater sculpin)
   |?-o Vellitor [2]
   |  |-- V. centropomus (Richardson, 1848)
   |  `-- V. minutus Iwata, 1983
   |?-o Zesticelus
   |  |-- Z. ochotensis Yabe, 1995
   |  `-- Z. profundorum (Gilbert, 1896) (Flabby sculpin)
   `--+--+-- Leptocottus armatus Girard, 1854 (Pacific staghorn sculpin)
      |  `-- Cottus kazika Jordan & Starks, 1904
      `?=o Cottus Linnaeus, 1758 sensu lato R. As., Mioc. NZ., L.Olig.-R. Eu., Mioc. Plioc.-R. NA. (kivisimput) [34]
         |--+--+-- Cottus pollux Günther, 1873 (Japanese fluvial sculpin)
         |  |  `-- Cottus reinii Hilgendorf, 1879
         |  `--+--+-- Cottus poecilopus volki (Taranetz, 1933)
         |     |  `-- Cottus hangiongensis Mori, 1930
         |     `--o Cephalocottus -clade
         |        |-- Cottus nozawae Snyder, 1911
         |        `-- Cottus amblystomopsis Schmidt, 1904 (Sakhalin sculpin)
         `--+-- Cottus poecilopus poecilopus Heckel, 1837 (Alpine bullhead)
            `--+--o Cottopsis -clade
               |  |-- Cottus aleuticus Gilbert, 1896 (Coastrange sculpin)
               |  |--+-- Cottus pitensis Bailey & Bond, 1963 (Pit sculpin)
               |  |  |-- Cottus perplexus Gilbert & Evermann, 1894 (Reticulate sculpin)
               |  |  `--+-- Cottus asper Richardson, 1836 (Prickly sculpin)
               |  |     `--+-- Cottus gulosus (Girard, 1854) (Riffle sculpin)
               |  |        `-- Cottus marginatus (Bean, 1881) (Margined sculpin)
               |  `--+-- Cottus princeps Gilbert, 1898 (Klamath Lake sculpin)
               |     `--+-- Cottus asperrimus Rutter, 1908 (Rough sculpin)
               |        `--o Cottus klamathensis Gilbert, 1898 (Marbled sculpin)
               |           |-- Cottus klamathensis polyporus
               |           `--+-- Cottus klamathensis macrops
               |              `-- Cottus klamathensis klamathensis Gilbert, 1898
               `--+--o Cottus Linnaeus, 1758 sensu stricto [Cottus -clade sensu Kinziger, Wood & Neely, 2005]
                  |  |-- Cottus ricei (Nelson, 1876) (Spoonhead sculpin)
                  |  `--+-- Cottus sibiricus Kessler, 1899 (Siberian sculpin)
                  |     `--+-- Cottus ferrugineus Heckel & Kner, 1858
                  |        `--o Cottus gobio Linnaeus, 1758 (kivisimppu; Bullhead)
                  |           |-- Cottus gobio gobio Linnaeus, 1758 (kivisimppu; Bullhead)
                  |           `-- Cottus gobio jaxartensis Berg, 1916
                  `--+--o “Uranidea” clade
                     |  |-- Cottus confusus Bailey & Bond, 1963 (Shorthead sculpin)
                     |  |--+-- Cottus greenei (Gilbert & Culver, 1898) (Shoshone sculpin)
                     |  |  `--+-- Cottus leiopomus Gilbert & Evermann, 1894 (Wood River sculpin)
                     |  |     `-- Cottus beldingii Eigenmann & Eigenmann, 1891 (Paiute sculpin)
                     |  `--+--+-- Cottus baileyi Robins, 1961 (Black sculpin)
                     |     |  |-- Cottus paulus
                     |     |  |--+-- Cottus sp. “smoky”
                     |     |  |  `-- Coppus sp. “Clinch”
                     |     |  |--+-- Cottus carolinae (Gill, 1861) [1] (Banded sculpin)
                     |     |  |  `-- Cottus sp. “Holston”
                     |     |  `--+-- Cottus sp. “Bluestone”
                     |     |     `-- Cottus sp. cf. Cottus carolinae (Gill, 1861) [2] (Banded sculpin)
                     |     `--+--+--+-- Cottus rhotheus (Smith, 1882) (Torrent sculpin)
                     |        |  |  `-- Cottus cognatus Richardson, 1836 (Slimy sculpin)
                     |        |  `--+-- Cottus bairdii punctulatus
                     |        |     |--+-- C. extensus Bailey & Bond, 1963 (Bear Lake sculpin)
                     |        |     |  `-- Cottus bairdii semiscaber
                     |        |     `--+-- Cottus hubbsi
                     |        |        `-- Cottus bendirei
                     |        `--+--+-- Cottus hypselurus Robins & Robison, 1985 (Ozark sculpin)
                     |           |  `-- Cottus bairdii bairdii Girard, 1850 [3&4] (Mottled sculpin)
                     |           `--+-- Cottus cognatus Richardson, 1836 [3] (Slimy sculpin)
                     |              |--+-- Cottus bairdii bairdii Girard, 1850 [1]
                     |              |  `--+-- Cottus sp. cf. Cottus cognatus Richardson, 1836 [1] “checkered”
                     |              |     `-- Cottus girardi Robins, 1961 (Potomac sculpin)
                     |              `--+-- C. caeruleomentum Kinziger, Raesly & Neely, 2000 (Blue Ridge sculpin)
                     |                 `--+-- Cottus bairdii bairdii Girard, 1850 [2]
                     |                    `-- Cottus bairdii kumlieni [1&2]
                     `--o “Baikalian clade”
                        |--o Paracottus knerii (Dybowski, 1874) (Stone sculpin) [paraphyletic Cottocomephoridae]
                        |  |-- P. k. knerii (Dybowski, 1874) (Stone sculpin)
                        |  `-- P. k. putorania Koryakov and Sidelov, 1976
                        |--+-- Leocottus kessleri
                        |  `--o Cottocomephorus [paraphyletic Cottocomephoridae]
                        |     |-- C. grewingkii (Dybowski, 1874) (Baikal yellowfin)
                        |     `-- C. inermis (Yakovlev, 1890) (Longfin Baikal sculpin)
                        |--o Procottus [Metacottus] [paraphyletic Abyssocottidae]
                        |  |?- P. gurwici (Taliev, 1946)
                        |  |-- P. jeittelesii (Dybowski, 1874) (Red sculpin)
                        |  `-- P. major Taliev, 1949
                        `--+--o Comephorus [Comephoridae] (rasvasimput)
                           |  |-- C. baikalensis (Pallas, 1776) (Big Baikal oilfish)
                           |  `-- C. dybowskii Korotneff, 1904 (Little Baikal oilfish)
                           `--+-- Cyphocottus eurystomus
                              `--+?- Abyssocottus elochini Taliev, 1955 [paraphyletic Abyssocottidae]
                                 |?- Abyssocottus werestschagini Taliev, 1935 [paraphyletic Abyssocottidae]
                                 |--+--o Asprocottus [paraphyletic Abyssocottidae]
                                 |  |  |?- A. abyssalis Taliev, 1955
                                 |  |  |?- A. parmiferus Taliev, 1955
                                 |  |  |--+-- A. minor
                                 |  |  |  `-- A. pulcher Taliev, 1955
                                 |  |  `--+-- A. herzensteini Berg, 1906 (Herzenstein's rough sculpin)
                                 |  |     `-- A. platycephalus Taliev, 1955
                                 |  `--+-- Cottinella boulengeri (Berg, 1906) (Short-headed sculpin) [paraphyletic Abyssocottidae]
                                 |     `-- Abyssocottus korotneffi Berg, 1906 [paraphyletic Abyssocottidae]
                                 `--+-- Abyssocottus gibbosus Berg, 1906 [paraphyletic Abyssocottidae]
                                    `--+?-o Batrachocottus [paraphyletic Cottocomephoridae]
                                       |  |-- B. baicalensis (Bybowski, 1874) (Bighead sculpin)
                                       |  |-- B. multiradiatus Berg, 1907
                                       |  `-- B. nikolskii (Berg, 1900) (Fat sculpin)
                                       `--o Limnocottus [incl. Neocottus??] [paraphyletic Abyssocottidae]
                                          |?- L. eurystomus (Taliev, 1955)
                                          |?- L. kozovi Taliev, 1946 (Vitim sculpin)
                                          |?- L. megalops (Gratzianov, 1902)
                                          |--+-- L. godlewskii (Dybowski, 1874)
                                          |  `-- L. griseus (Taliev, 1948)
                                          `--+-- L. bergianus Taliev, 1935
                                             `-- L. pallidus Taliev, 1948

Reference(s):