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首页> 外文期刊>Zoological Science >Larval and juvenile development of the echinometrid sea urchin Colobocentrotus mertensii. Emergence of the peculiar form of spines
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Larval and juvenile development of the echinometrid sea urchin Colobocentrotus mertensii. Emergence of the peculiar form of spines

机译:棘皮动物海胆Colobocentrotus mertensii的幼体和幼体发育。棘突特有形式的出现

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摘要

The development of Colobocentrotus mertensii from embryos to larvae and early juveniles was observed to give the first detailed description of larval and juvenile formation and skeletal structures in echinometrid sea urchins. The first larval spicules appeared at the mesenchyme blastula stage, whereas, in many echinoids, spicules were formed after gastrulation. From late eight-armed larva to juvenile, body color of C. mertensii was deep red, which has never been described for any echinoid before.
机译:观察到疣状小夜蛾从胚胎到幼虫和早期幼虫的发育,首次对棘皮动物海胆中幼虫和幼虫的形成以及骨骼结构进行了详细的描述。最早的幼虫针头出现在间充质囊期,而在许多类棘突类动物中,胃小肠化后形成了针状体。从晚八臂幼虫到幼虫,C。mertensii的体色为深红色,以前从未描述过任何棘突类动物。

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