ヒウチダイ属（学名：）は、ヒウチダイ目ヒウチダイ科の属の一つ。
種 2013年現在、ヒウチダイ属は、30種:Froese, R. and D. Pauly, Eds. Hoplostethus. FishBase. 2013. (Kotlyar, 1986) (Collett, 1889) - orange roughy オレンジラフィー (Quéro, 1974) - black slimehead (Kotlyar, 1980) (Kotlyar, 1980) マルヒウチダイ (Kotlyar, 1986) (Kotlyar, 1986) (F. de Buen, 1959) - Chilean roughy (McCulloch, 1914) - giant sawbelly (C. D. Roberts & M. F. Gomon, 2012)Roberts, C.D. & Gomon, M.F. (2012). A review of giant roughies of the genus Hoplostethus (Beryciformes, Trachichthyidae), with descriptions of two new Australasian species. Memoirs of Museum Victoria 69: 341–54. - Grandperrin's giant sawbelly (Hector, 1875) - blacktip sawbelly (Hilgendorf, 1879) - Western Pacific roughy ヒウチダイ (McCulloch, 1914) - palefin sawbelly (Kotlyar, 1986) - Red Sea roughy (Cuvier, 1829) (Cuvier, 1829) - Mediterranean slimehead (Kotlyar, 1986) - Western Atlantic silver roughy (Kotlyar, 1986) (C. D. Roberts & M. F. Gomon, 2012) - New Zealand giant sawbelly (Fowler, 1938) - blackfin roughy (M. C. W. Weber, 1913) - smallscale slimehead クロヒウチ (Garman, 1899) - slimy head (Fowler, 1938) - metallic roughy (Kotlyar, 1986) (Woods, 1973) - western roughy ニシヒウチダイ (Garman, 1899) - Eastern Pacific roughy (M. F. Gomon, 2008)Gomon, M. F. (2008). A new species of the roughy genus Hoplostethus (Trachichthyidae) off north-western Australia. Memoirs of Museum Victoria 65, 189-94. (Kotlyar, 1986) (J. A. Moore & Dodd, 2010)Moore, J. A. and K. A. Dodd. (2010). A new species of the roughy genus Hoplostethus (Teleostei: Trachichthyidae) from the Philippines. Bulletin of the Peabody Museum of Natural History 51(1) 137-44. - thickspine roughy (Kotlyar, 1980) (Kotlyar, 1980) - Metavay sawbelly (Kotlyar, 1980) (Kotlyar, 1995)
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