Polypteriformes


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Related to Polypteriformes: Bichir, Polypteridae

Polypteriformes

[‚päl·əp‚ter·ə′fȯr‚mēz]
(vertebrate zoology)
An ancient order of actinopterygian fishes distinguished by thick, rhombic, ganoid scales with an enamellike covering, a slitlike spiracle behind the eye, a symmetrical caudal fin, and a dorsal series of free, spinelike finlets.