Barrier Reef Molluscs and Planarians from The Great Barrier Reef of Australia (1893) by William Saville-Kent (1845-1908). https://www.rawpixel.com/image/414422/free-illustration-image-octopus-sea-reefFree Image from public domain licenseAntique plant Polygonum Minus - Muhlenbehia adpressa - Muhlenbehia compressa drawn by Sarah Featon (1848–1927).… https://www.rawpixel.com/image/8783/free-illustration-image-flower-sarah-featon-polygonumFree Image from public domain license