深水非造礁石珊瑚(Ahermatypic coral)中的扇形珊瑚属(Flabellum)在东海大陆架海区不仅数量多,而且是优势种。因扇形珊瑚属自第三纪的始新世至今都有生长,所以不但引起现代底栖生物学者的关注,而且也是第三、第四纪古生物工作者常常提及的种属。自Lesson 1831年建立Flabellum以来,不断有新种报导,但也有不少学者对这些新种提出异议,认为是同物异名,时时在合并。有分有合,意见纷纭。因此,这一属的种类庞杂,相当混乱。我们这次调查中发现的红色扇形珊瑚(Flabellum rubrum)和F.sto- The Flabellum in deep-water non-reef-forming coral (Ahermatypic coral) is not only abundant but also dominant in the continental shelf of the East China Sea. Due to the growth of the genus Coral since the Eocene Eocene, it not only aroused the attention of modern benthic creatures, but also the third and fourth Quaternary paleontologists are often mentioned species. Since Lesson established Flabellum in 1831, there have been a great deal of new kinds of reports. However, many scholars have raised objections to these new species and regarded them as synonymous and merging. There are points together, opinions vary. Therefore, the genus is complex and quite chaotic. The red coral (Flabellum rubrum) and F. sto-