From ""Seaside Studies in Natural History" by Elizabeth C. Agassiz and
Alexander Agassiz. Actinia in different degrees of expansion. The same Actinia
(Metridium marginata) fully expanded. A sea anemone.
Image ID: expl3117, Voyage To Inner Space - Exploring the Seas With NOAA Collect Location: Massachusetts coast Photo Date: 1865 Credit: Collection of Captain Albert E. Theberge, NOAA Corps (ret.)