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Percopsiformes

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The Percopsiformes are a small order of ray-finned fishes, comprising the trout-perch and its allies. It contains just ten extant species, grouped into seven genera and three families. Five of these genera are monotypicThey are generally small fish, ranging from 5 to 20 cm (2.0 to 7.9 in) in adult body length. They inhabit freshwater habitats in North America. They are grouped together because of technical characteristics of their internal anatomy, and the different species may appear quite different externally. Order Percopsiformes Berg 1937Genus †Lateopisciculus Murray & Wilson1996 Genus †Percopsiformorum [Otolith] Suborder Percopsoidei Berg 1937 Family †Libotoniidae Wilson & Williams 1992 Genus †Libotonius Wilson 1977 Family Percopsidae Regan 1911 [Percopsides Agassiz 1850;…

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