单词 | Perciformes |
释义 | Perciformes [´pǝr·sǝ`fȯr´mēz] VERTEBRATE ZOOLOGY The typical spiny-rayed fishes, comprising the largest order of vertebrates; characterized by fin spines, a swim bladder without a duct, usually ctenoid scales, and 17 or fewer caudal fin rays. |
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