Photo: I. MacDonald, D.L. Felder and D.K. Camp
That wonderful monster of the deep, dear Neatoramanauts, is the Venus flytrap sea anemone (Actinoscyphia sp.) from the Gulf of Mexico. Its name is derived from two land plants (the carnivorous venus fly trap and the flower anemone), but it's actually a type of polyp, related to corals and jellyfish.