Here's the best pic I know of that shows a naturally occurring "hybrid" Crappie :



Many people catch them, and probably more often than they realize, but just don't recognize them as such.

Even our own KY State Record Crappie had to be genetically tested to prove it wasn't a World Record Black Crappie @ 4lb 14oz in 2005:



And it was deemed a naturally occurring hybrid ... so, no World Record, but did qualify as a State Record (since KY does not distinguish between Black/White/Hybrids for state records).