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:
Aequidens viridis. en Aequidens viridis Aquarell by Johann Natterer from de Aequidens viridis Aquarell von Johann Natterer aus dem Jahr Heckel Johann Natterer neue Flussfische Brasilien nach den Beobachtungen und Mittheilungen des Entdeckers beschrieben Erste Abtheilung Die Labroiden Ann wien Mus Natgesch Johann Natterer Illustrations