After Nelson, 1994, and Johnson & Patterson, 1996, with Recent species from Froese & Pauly, 2001 [“The Fishbase”]

<==o Alepocephalidae sensu Johnson & Patterson, 1996 (silokuorreet)
   |?-o Asquamiceps [4]
   |  |-- A. caeruleus Markle, 1980
   |  |-- A. hjorti (Koefoed, 1927)
   |  |-- A. longmani Fowler, 1934
   |  `-- A. velaris Zugmayer, 1911 (Fanfin smooth-head)
   |?- Binghamichthys aphos Bussing, 1965
   |?- Bellocia [genus not recognized by Fishbase]
   |?-o Conocara [7]
   |  |-- C. fiolenti Sazonov & Ivanov, 1979 (Fiolenti's smooth-head)
   |  |-- C. kreffti Sazonov, 1997
   |  |-- C. macroptera (Vaillant, 1888) (Longfin smooth-head)
   |  |-- C. microlepis (Lloyd, 1909) (Elongate smooth-head)
   |  |-- C. murrayi (Koefoed, 1927) (Murray's smooth-head)
   |  |-- C. salmonea (Gill & Townsend, 1897) (Salmon smooth-head)
   |  `-- C. werneri Nybelin, 1947 (Werner's smooth-head)
   |?-o Einara [2]
   |  |-- E. edentula (Alcock, 1892) (Toothless smooth-head)
   |  `-- E. macrolepis (Koefoed, 1927) (Loosescale smooth-head)
   |?- Ericara niger (Günther, 1878)
   |?- Microphotolepis multipunctata Sazonov & Parin, 1977
   |?- Mirognathus normani Parr, 1951 (Norman's smooth-head)
   |?- †Palaeotroctes L. Olig. EEu.
   |?-o Xenodernichthys Mioc. Eu. R. Oc. [2] 
   |  |-- X. copei (Gill, 1884) (Bluntsnout smooth-head)
   |  `-- X. nodulosus Günther, 1878
   |--o Bathytroctes [11]
   |  |-- B. breviceps Sazonov, 1999
   |  |-- B. elegans Sazonov & Ivanov, 1979
   |  |-- B. inspector Garman, 1899
   |  |-- B. macrognathus Sazonov, 1999
   |  |-- B. macrolepis Günther, 1887 (Koefoed's smooth-head)
   |  |-- B. michaelsarsi Koefoed, 1927 (Michael Sars smooth-head)
   |  |-- B. microlepis Günther, 1878 (Smallscale smooth-head)
   |  |-- B. oligolepis (Krefft, 1970)
   |  |-- B. pappenheimi (Fowler, 1934)
   |  |-- B. squamosus Alcock, 1890
   |  `-- B. zugmayeri Fowler, 1974
   `--+--o Narcetes [4]
      |  |-- N. erimelas Alcock, 1890
      |  |-- N. kamoharai Okamura, 1984
      |  |-- N. lloydi Fowler, 1934
      |  `-- N. stomias (Gilbert, 1890) (Blackhead salmon)
      `--+--o Bajacalifornia [6]
         |  |-- B. aequatoris Miya & Markle, 1993
         |  |-- B. arcylepis Markle & Krefft, 1985
         |  |-- B. burragei Townsend & Nichols, 1925 (Sharpchin slickhead)
         |  |-- B. calcarata (Weber, 1913) (Brown slickhead)
         |  |-- B. megalops (Lütken, 1898) (Bigeye smooth-head)
         |  `-- B. microstoma Sazonov, 1988
         `--+--+-- Rinoctes nasutus (Koefoed, 1927) (Abyssal smooth-head)
            |  `--o Talismania [9]
            |     |-- T. antillarum (Goode & Bean, 1896) (Antillean smooth-head)
            |     |-- T. bifurcata (Parr, 1951) (Threadfin slickhead)
            |     |-- T. bussingi Sazonov, 1989
            |     |-- T. filamentosa Okamura & Kawanishi, 1984
            |     |-- T. homoptera (Vaillant, 1888) (Hairfin smooth-head)
            |     |-- T. kotlyari Sazonov & Ivanov, 1980
            |     |-- T. longifilis (Brauer, 1902)
            |     |-- T. mekistonema Sulak, 1975 (Threadfin smooth-head)
            |     `-- T. okinawensis Okamura & Kawanishi, 1984
            `--+--+--o Rouleina [7]
               |  |  |-- R. attrita (Vaillant, 1888) (Softskin smooth-head)
               |  |  |-- R. danae Parr, 1951
               |  |  |-- R. guentheri (Alcock, 1892)
               |  |  |-- R. livida (Brauer, 1906)
               |  |  |-- R. maderensis Maul, 1948 (Madeiran smooth-head)
               |  |  |-- R. squamilatera (Alcock, 1898) (Bluntsnout slickhead)
               |  |  `-- R. watasei (Tanaka, 1909)
               |  `--+-- Photostylus pycnopterus Beebe, 1933 (Starry smooth-head)
               |     `--o Leptoderma [3]
               |        |-- L. lubricum Abe, Marumo & Kawaguchi, 1965
               |        |-- L. macrops Vaillant, 1886 (Grenadier smooth-head)
               |        `-- L. retropinnum Fowler, 1943
               `--+--o Alepocephalus [13]
                  |  |-- A. agassizii Goode & Bean, 1883 (Agassiz' slickhead)
                  |  |-- A. australis Barnard, 1923 (Small scaled brown slickhead)
                  |  |-- A. bairdii Goode & Bean, 1879 (Baird's smooth-head)
                  |  |-- A. bicolor Alcock, 1891
                  |  |-- A. longiceps Lloyd, 1909
                  |  |-- A. longirostris Okamura & Kawanishi, 1984
                  |  |-- A. melas de Buen, 1961
                  |  |-- A. owstoni Tanaka, 1908
                  |  |-- A. productus Gill, 1883 (Smalleye smooth-head)
                  |  |-- A. rostratus Risso, 1820 (Risso's smooth-head)
                  |  |-- A. tenebrosus Gilbert, 1892 (California slickhead)
                  |  |-- A. triangularis Okamura & Kawanishi, 1984
                  |  `-- A. umbriceps Jordan & Thompson, 1914 (Slickhead)
                  `--+-- Bathyprion danae Marshall, 1966 (Fangtooth smooth-head)
                     `--o Leptochilichthys [Leptochilichthyidae] [3]
                        |-- L. agassizii Garman, 1899 (Agassiz' smooth-head)
                        |-- L. microlepis Machida & Shiogaki, 1988
                        `-- L. pinguis (Vaillant, 1886) (Vaillant's smooth-head)

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