This anemone, which measured an impressive 10 centimeters (4 inches) across, was seen during a dive at Whiting Seamount at ~1,300 meters (4,265 feet) depth as part of the Océano Profundo 2015: Exploring Puerto Rico’s Seamounts, Trenches, and Troughs expedition.

For other interesting critters encountered during the expedition, visit the “Animals of the Deep Sea” mission log.