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:
Kunstformen der Natur Tafel . Haeokel Jmstfrmon dar Natur Zur Tafel Calocyclas Tafel Illustration biodiversitylibrary org title Bibliographisches Institut Leipzig Haeckel Ernst NameFound Calocyclas NameConfirmed Calocyclas EOLID NameBankID Biodiversity Heritage Library Kunstformen der Natur Pictorial works Zoology