How does the freshwater drum differ from most of its marine relatives in the Sciaenidae family regarding habitat?

Answer

It is the only species adapted exclusively to freshwater life

The freshwater drum is a genuine anomaly—the only species in the entire Sciaenidae family adapted exclusively to freshwater life, carrying a unique feeding apparatus.

How does the freshwater drum differ from most of its marine relatives in the Sciaenidae family regarding habitat?
fishanatomydrumtoothfreshwater drum