Bowfin--these are found in nearly every creek and river in SO ILL, and in the spring time they can be absolutely beautiful.
Grass carp
Spotted bass--An invasive species in these waters, and expanding
it's range.
Smallmouth bass--recently stocked in a southern Illinois reservoir, they are starting to show up more frequently and I can not wait until the population starts to expand!
Hybrid striped bass--They make "spawning" runs up tributaries from the mississippi, and pull harder than almost any other fish I have caught.
Paddlefish--Prehistoric creatures that are in trouble throughout most of they're range. They're eggs can be used as caviar, so they are in even more trouble.