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.
Origin of Vertebrates Fig . Fig Under Surface of Scorpion Androctonus The operculum is marked out with dots and on each side of it is seen one of the pectens The Origin of Vertebrates org Walter Holbrook Gaskell PDoldauto Origin of Vertebrates book Androctonus
Page 2023 Free-images.com. All images are Public Domain