中文摘要：

在收集从的样品的硅藻 taxa 最高华南海(SCS ) 的 1 厘米的沉积在在 2000， 2001，和 2007 的巡航期间被调查。在他们之中，二个类， Rutilaria 和 Trigonium，和 11 海洋的 taxa (种类和变化) 在中国第一次被描述。11 taxa， Rutilaria radiata， Asterolampra grevillei， Biddulphia turrigera， Cocconeis cyclophora var。decora， Cocconeis ocellata， Dictyoneis marginata， Entogonia davyana， Tryblionella campechiana， Plagiogramma kinkeri， Plagiogramma nankoorense 和 Trigonium cf。contumax，主要是现存种类，尽管 Rutilaria radiata 和 Entogonia davyana 是石块。可得到的数据表演这些种类主要是在东方、西方的太平洋和印度洋的现在。最新在这研究记录的很多 taxa 以前在菲律宾被报导。在两个地点的这些 taxa 的存在是可能的在通过 Bashi 隧道的 SCS 的海水交换的结果。对每硅藻 taxon 的分类描述，产地，和分布此处被提供。

英文摘要：

Diatom taxa in samples collected from the uppermost 1-cm sediment of the South China Sea （SCS） during cruises in 2000, 2001, and 2007 were investigated. Among them, two genera, Rutilaria and Trigoniurn, and 11 marine taxa （species and varieties） were described for the first time in China. The 11 taxa, Rutilaria radiata, Asterolampra grevillei, Biddulphia turrigera, Cocconeis cyclophora var. decora, Cocconeis ocellata, Dictyoneis rnarginata, Entogonia davyana, Tryblionella campechiana, Plagiogramma kinkeri, Plagiogramma nankoorense and Trigonium cf. contumax, were mainly extant species, although Rutilaria radiata and Entogonia davyana are fossils. Available data show that these species are mainly present in the eastern and western Pacific Ocean and the Indian Ocean. A large number of taxa newly recorded in this study were previously reported in the Philippines. The presence of these taxa in both locations is likely a result of seawater exchange in the SCS through the Bashi Channel Taxonomic descriptions, habitats, and distributions of each diatom taxon are provided herein.