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:
Glaucus atlanticus mating Bergh Tab. VII. en Glaucus atlanticus mating archive org page Anatomiske Bidrag til Kundskab om Aeolidierne Med lithographerede Tavler in Det kongelige Danske Videnskabernes Selskabs Skrifter vol table VII Rudolph Bergh for Extracted from Glaucus atlanticus dissection Bergh Tab VII PDold Illustrations