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有关单环刺发育周期的研究，国内外迄今未见专门报道。本文报道了烟台沿岸单环刺早期胚胎发育、各期幼虫形态标志、幼和成的形态特征的研究结果。
The research on the development cycle of single-ring thorn has not been reported exclusively at home and abroad so far. In this paper, we report the results of morphological characteristics of early mononuclear spiny embryos, morphological traits of larvae and juveniles in Yantai.