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|Noun||1.||Isospondyli - most primitive teleost fishes; all are soft-finned: salmon; trout; herring; shad; sardines; anchovies; whitefish; smelts; tarpon|
animal order - the order of animals
Malacopterygii, superorder Malacopterygii - an extensive group of teleost fishes having fins supported by flexible cartilaginous rays
Coregonidae, family Coregonidae - soft-finned fishes comprising the freshwater whitefishes; formerly included in the family Salmonidae
Argentinidae, family Argentinidae - small marine soft-finned fishes with long silvery bodies; related to salmons and trouts