Percoidei is a suborder of bony fishes in the order Perciformes. Many commercially harvested fish species are considered to be contained in this suborder, including the groupers, seabasses and perches.
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Percoidei is a suborder of bony fishes in the order Perciformes. Many commercially harvested fish species are considered to be contained in this suborder, including the groupers, seabasses and perches.
==Divisions== The following classification is based on ''Eschmeyer's Catalog of Fishes: Suborder Percoidei Family Serranidae Swainson, 1839 (sea basses) Family Anthiadidae Poey, 1861 (fairy basslets or streamer basses) Family Epinephelidae Bleeker, 1874 (groupers) Family Liopropomatidae Poey, 1867 (painted basslets) Subfamily Liopropomatinae Poey, 1867 Subfamily Diploprioninae Bleeker, 1874 Family Grammistidae Bleeker, 1857 (soapfishes) Family Percidae Rafinesque, 1815 (perches and darters) Subfamily Percinae Rafinesque, 1815 Subfamily Luciopercinae Jordan & Evermann, 1896 Subfamily Etheostomatinae Agassiz, 1850 Family Niphonidae Jordan, 1923 (Ara groupers) Family Trachinidae Rafinesque, 1815 (weeverfishes) Family Bembropidae Regan, 1913 (flatheads or duckbill flatheads) The species in the family Grammistidae and the liopropomatid subfamily Diploprioninae secrete a mucus-like toxin in their skin called grammistin, and when they are confined in a restricted space and subjected to stress, the mucus produces a foam that is toxic to nearby fish. These fishes are often called soapfishes.
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