Don't know when it was named, but the name reflects the common name or vice versa - Percina macrocephala (macro - large, cephala - head or associated to the head). Related to logperch and ozark logperch found in MO and AR.
@BilletHead I saw a similar or the same article on a different feed. This species seems to be a big river species based upon the collections that are on Fishmap.org. So it is very likely to be missed on many surveys. Even with that this it is still considered to be a species of concern or imperiled across its range.
I think that is it a pretty cool fish.