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

<==o Platytroctidae [incl. Searsiidae] (tubeshoulders and searsids) [13/28]
   |--o Barbantus [2]
   |  |-- B. curvifrons (Roule & Angel, 1931) (Palebelly searsid)
   |  `-- B. elongatus Krefft, 1970
   |--o Holtbyrnia [Mentodus] [7]
   |  |-- H. anomala Krefft, 1980 (Bighead searsid)
   |  |-- H. innesi (Fowler, 1934) (Teardrop tubeshoulder)
   |  |-- H. intermedia (Sazonov, 1976)
   |  |-- H. laticauda Sazonov, 1976
   |  |-- H. latifrons Sazanov, 1976 (Streaklight tubeshoulder)
   |  |-- H. macrops Maul, 1957 (Bigeye searsid)
   |  `-- H. ophiocephala Sazonov & Golovan, 1976
   |--o Maulisia [4]
   |  |-- M. acuticeps Sazonov, 1976
   |  |-- M. argipalla Matsui & Rosenblatt, 1979 (Palegold searsid)
   |  |-- M. mauli Parr, 1960 (Maul's searsid)
   |  `-- M. microlepis Sazonov & Golovan, 1976 (Smallscale searsid)
   |--o Mentodus [3]
   |  |-- M. crassus Parr, 1960
   |  |-- M. perforatus Sazonov & Trunov, 1978
   |  `-- M. rostratus (Günther, 1878)
   |?- Mirorictus
   |--o Normichthys [2]
   |  |-- N. operosus Parr, 1951 (Multipore searsid)
   |  `-- N. yahganorum Lavenberg, 1965
   |-- Paraholtbyrnia cyanocephala Krefft, 1967
   |--o Pellisolus [2]
   |  |-- P. facilis Parr, 1951
   |  `-- P. longirostris Sazonov & Golovan, 1976
   |-- Persparsia kopua (Phillipps, 1942)
   |-- Platytroctegen mirus Lloyd, 1909 Leaf searsid
   |-- Platytroctes apus Günther, 1878 (Legless searsid)
   |--o Sagamichthys [2]
   |  |-- S. abei Parr, 1953 (Shining tubeshoulder)
   |  `-- S. schnakenbecki (Krefft, 1953) (Schnakenbeck's searsid)
   |-- Searsia koefoedi Parr, 1937 (Koefoed's searsid)
   |?- Searsioides
   `-- Tragularius mesalirus Matsui & Rosenblatt, 1987

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