Description:
Coscinodiscus wailesi (Bacillariophyceae, Coscinodiscophycidae, Coscinodiscales, Coscinodiscaceae), diameter 90 mm, Helgoland 06.2018. 0:21 min. In C. wailesii cells are often as wide as high. They originate from the Pacific and occur around Helgoland since the 1970th. Video can be used for teaching