ganoid, ganoid fish

primitive fishes having thick bony scales with a shiny covering

• bowfin, grindle, dogfish, Amia calva — primitive long-bodies carnivorous freshwater fish with a very long dorsal fin; found in sluggish waters of North America
• paddlefish, duckbill, Polyodon spathula — primitive fish of the Mississippi valley having a long paddle-shaped snout
• Chinese paddlefish, Psephurus gladis — fish of larger rivers of China similar to the Mississippi paddlefish
• sturgeon — large primitive fishes valued for their flesh and roe; widely distributed in north temperate zone
• gar, garfish, garpike, billfish, Lepisosteus osseus — primitive predaceous North American fish covered with hard scales and having long jaws with needle-like teeth

• teleost fish, teleost, teleostan — a bony fish of the subclass Teleostei

• Ganoidei, order Ganoidei — a group of mostly extinct primitive bony fishes characterized by armor-like bony scales