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Which paracanthopterygian order includes trout-perches and pirate perches?
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paracanthopterygian
Oyster toadfish (Opsanus tau).
The order that includes trout-perches and pirate perches is Percopsiformes.1
These fishes belong to the superorder Paracanthopterygii, a group of primarily marine bony fishes. Unlike many other members of this superorder, all species within the order Percopsiformes are freshwater fishes found in North America.21