This image was acquired from
wikimedia. It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
Keywords from Image Description:
Ceratium hirundinella. Ceratium hirundinella Mller Dujardintalk HaeckelPeridinea Ausschnitt HaeckelPeridinea PDold Original upload log This image is derivative work of the following images File HaeckelPeridinea with Ccpdmarkfooter PDold Ragesoss Bytes no th plate from Ernst Haeckel's Kunstformen der Natur depicting organisms