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Where is the trout-perch found in North America?
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paracanthopterygian
Oyster toadfish (Opsanus tau).
The trout-perch, a member of the paracanthopterygian superorder, is found exclusively in the freshwater environments of North America.2
There are two species within the genus Percopsis with distinct ranges:
- Percopsis omiscomaycus: This species is found throughout central North America.1
- Percopsis transmontana: This species is found in the Columbia River system.1
These fish are classified as percopsiforms, which are notable for being structurally intermediate between primitive soft-rayed fish and more advanced spiny-rayed fishes.12