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|Noun||1.||Argentinidae - small marine soft-finned fishes with long silvery bodies; related to salmons and trouts|
fish family - any of various families of fish
Isospondyli, order Isospondyli - most primitive teleost fishes; all are soft-finned: salmon; trout; herring; shad; sardines; anchovies; whitefish; smelts; tarpon