Science Art: Corynactis Viritis (et al), Phillip Henry Gosse, 1860.

Scientific illustration of colorful sea anemones practically glowing in orange, yellow, and red against the blackness of an undersea cave or rock face.
Scientific illustration of colorful sea anemones practically glowing in orange, yellow, and red against the blackness of an undersea cave or rock face.

These are sea anemones, from History of the British Sea-Anemones and Corals by Phillip Henry Gosse.
They are, according to the caption below:
1-5 Corynactis Viritis, 6. Bologera Eques, 7. Zoanthus Sulcatus, 8. Z. Alderi, 9-10. Zoanthus Coucnii, 11. Aureliania Augusta, 12. A. Meteocera, 13. Capnea Sanguinea.

I found the image in the digital collection of the University of Washington library.