Synonyms for Dollarfish (same or very similar meaning)
WordNet sense 1 (small food fish of Atlantic coast):
Poronotus triacanthusWordNet sense 2 (any of several silvery marine fishes with very flat bodies):
horsefish, horsehead, horse-head, moonfish, Atlantic moonfish, Selene setapinnisFrom the ODE community, based on WordNetadd/edit