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生物通
24 天
中国地下盲鲇的同步辐射显微断层骨骼学研究:系统分类新见解
这种无眼穴居物种展现出独特的形态适应:眶下骨(infraorbital bones)退化为单一后部成分与泪骨(lacrimal),中喙骨(mesocoracoid arch)不完整,第一背鳍鳍担骨(pterygiophore)结构特化——缺乏成对的竖肌骨管,近端融合前突,且与韦伯器复合体(Weberian complex)分离。其韦伯器 ...
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