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:
FMIB Skull of Perch with the Operculum removed to show the bones of the head the branchial arches and the branchiostegal rays.jpeg check categories September Skull of Perch with the Operculum removed to show the bones of the head the branchial arches and the branchiostegal rays Frontal prefrontal postfrontal epiotic supraoccipital