| 单词 | Polypteriformes |
| 释义 | Polypteriformes [´päl·ǝp´ter·ǝ`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. |
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