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

<==o Liparidae (snailfishes) [19/195]
   |?-o Acantholiparis  ()? [2]
   |  |-- A. caecus Grinols, 1969
   |  `-- A. opercularis Gilbert & Burke, 1912 (Spiny snailfish)
   |-- Careproctus [Pseudoliparis] ()? [95]
   |--o Crystallichthys
   |  |-- C. cyclospilus Gilbert & Burke, 1912 (Blotched snailfish)
   |  |-- C. matsushimae (Jordan & Snyder, 1902)
   |  `-- C. mirabilis Jordan & Gilbert, 1898
   |?- Edentoliparis terraenovae (Regan, 1916)
   |?- Eknomoliparis chirichignoae Stein, Meléndez & Kong, 1991
   |-- Elassodiscus caudatus (Gilbert, 1915) (Blackbelly snailfish)
   |?- Genioliparis lindbergi Andriashev & Neelov, 1976
   |-- Liparis [Cyclogaster] ()? [42]
   |-- Nectoliparis pelagicus Gilbert & Burke, 1912 (Tadpole snailfish)
   |--o Notoliparis
   |  |-- N. kermadecensis (Nielsen, 1964)
   |  |-- N. kurchatovi Andriashev, 1975 (Kurchatov's notoliparis)
   |  `-- N. macquariensis Andriashev, 1978 (Macquarie notoliparid)
   |?- Odontoliparis ferox Stein, 1978
   |?- Osteodiscus cascadiae Stein, 1978 (Bigtail snailfish)
   |?- Palmoliparis beckeri Balushkin, 1996
   |-- Paraliparis [Lipariscus, Psednos, Rhinoliparis, Rhodichthys, Polypera] ()? [69]
   |?- Polypera simushirae (Gilbert & Burke, 1912) [Paraliparis]
   |-- Psednos Barnard, 1927
   |?-o Rhinoliparis
   |  |-- R. attenuatus Burke, 1912 (Slim snailfish)
   |  `-- R. barbulifer Gilbert, 1896 (Longnose snailfish)
   |?- Rhodichthys regina Collett, 1879 (Threadfin seasnail)
   `?- Squaloliparis dentatus (Kido, 1988)

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