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| 名詞 |
定義 |
| spine |
1) A sharp projecting point; if referring to fins, a stiff unsegmented, undivided and unbranched element supporting and/or arming the fin. It is not laterally paired as are rays. Spine counts are given in Roman numerals, e.g. XI-XIV. See also ray. 2) Sharp hard bony structures on the skeleton or skin, e.g. preopercular spines. Both serve as predator deterrents. |
| 硬棘 |
1) 銳利的突出點；如果指的是鰭，則是硬而不分節的、不分開的與不分枝的元素，支撐及(或)武裝鰭。它不像鰭條是側生成對的。棘的計數是使用羅馬數字，例如：XI-XIV。見「ray」；2) 在骨骼或皮膚上銳利而堅硬的骨質結構，例如前鰓蓋骨棘。兩者都可當作在遏阻掠食者時用。
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