This trachymedusae was imaged swimming just above the seafloor along the west wall of Mona Canyon during the Océano Profundo 2015: Exploring Puerto Rico’s Seamounts, Trenches, and Troughs expedition. Fauna during the dive included a diversity of sponges, arrow worms, sea pens, black corals, a bamboo coral, a ctenophore, anemones, a large variety and number of sea cucumbers, a halosaur, crinoids, several large grenadiers, a lizardfish, urchins, sea stars, and shrimp. Watch a video of highlights from the dive for more.