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:
Die Klassen und Ordnungen des ThierReichs . Malacozoa PuhriTiata Taf VII Plate CVII Illustration biodiversitylibrary org title Bronn Gerstaecker Hoffmann Keferstein Wilhelm Moritz Ortmann Biodiversity Heritage Library Dr Bronn's Klassen und Ordnungen der Weichthiere Malacozoa Bd Abt Cephalopoda Mollusks Harvard University