| Noun | 1. | superorder Malacopterygii - an extensive group of teleost fishes having fins supported by flexible cartilaginous raysCypriniformes, order Cypriniformes - an order of animals including almost entirely freshwater fishes: characins; loaches; carp; suckers; sometimes classified as a suborder of Ostariophysi Isospondyli, order Isospondyli - most primitive teleost fishes; all are soft-finned: salmon; trout; herring; shad; sardines; anchovies; whitefish; smelts; tarpon | |