Chaetoceros didymus - <p><i><a href="//commons.wikimedia.org/wiki/Chaetoceros_didymus" title="Chaetoceros didymus">Chaetoceros didymus</a></i> in <a href="//commons.wikimedia.org/wiki/Category:Nausica%C3%A4_Centre_National_de_la_Mer" title="Category:Nausicaä Centre National de la Mer">Nausicaa Aquarium</a> (identified by the aquarium's biologists) or <i><a href="//commons.wikimedia.org/w/index.php?title=Chaetoceros_decipiens&amp;action=edit&amp;redlink=1" class="new" title="Chaetoceros decipiens (page does not exist)">Chaetoceros decipiens</a></i> (see dicussion page) </p> © Liné1 - CC BY 2.5 - Wikimedia Commons