We describe two new species of Sellaphora from Lake Fuxian, Ytmnan Plateau, China. Based on both light and scanning electron microscopy, these species are described as S. yunnanensis sp. nov. and S. sinensis sp. nov. The primary features of S. yunnanens＆ are： elliptical to linear-elliptical valves with broadly rounded ends, straight filiform raphe, almost straight central endings and small, slightly expanding central pores, small central area, symmetrical or slightly asymmetrical central nodule. The primary features of S. sinensis are： elliptical valves, obtusely rounded ends, similar raphe and axial area, transapically less expanded central area, larger, elliptical central nodule. We compare these species to those of a similar shape and morphology.
One new species, four newly recorded genera, and two newly recorded species of diatoms are described from China. They are Sellaphorafuxianensis sp. nov. Li, Sellaphora Mereschkowsky, Karayevia Round ＆ Bukhtiyarova, Placoneis Mereschkowsky, Fallacia Stickle ＆ Mann, Placoneisprespanensis Levkov, Krstic ＆ Nakov, and Fallacia lucinensis （Hustedt） D. G. Mann. All taxa were collected from Lake Fuxian in Yunnan Province, China. These species were observed with light and scanning electron microscopes, and their taxonomic characters are discussed.
