目 摘要 for Gasterosteiformes
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主要參考文獻 |
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目 |
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Gasterosteiformes sticklebacks and seamoths |
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綱 |
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Teleostei |
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姊妹目 |
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Syngnathiformes 15 M years |
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參考文獻 |
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最早的化石記錄 |
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late Tertiary |
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生存於 |
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海洋 |
淡水 |
半鹹淡水 |
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附註 |
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Pelvic girdle never attached directly to the cleithra; supramaxillary, orbitosphenoid, and basisphenoid absent; postcleithrum a single bone or absent; branchiostegal rays 1-5; body often with armor of dermal plates; mouth usually small.
About 19 species are restricted to freshwater, and another 40 species are found in brackish water (some being variously diadromous or at lest able to commonly enter freshwater and marine water). |
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綱 詞源 |
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Greek aktis = ray, thunderbolt, beam + Greek pterygion, diminutive of pteryx = wing, fin. Ref. 45335. |
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目 詞源 |
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Greek, gaster = stomach + Greek, + Greek, osteon = bone + Latin, forma = shape (Ref. 45335). |
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科 |
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( n = 5 ) - |
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