[3][4] It is also known as the swimming sea cucumber, and some are called the pink see-through fantasia.

[5] Species in this genus have developed webbed swimming fin like structures at the front and back of their bodies which enable them to swim up off the surface of the sea floor and to journey as much as 1,000 m (3,300 ft) up into the water column.

[8] The enypniastes have a round bulbous body, bifurcated tentacles, and a large anterior sail.

[7] They spend most of their time in the water column, touching down on the seafloor only to eat.

[8] The first sighting in the southern ocean waters occurred in October 2018,[10] when a team from Australia's Department of the Environment and Energy caught an image of E. eximia on a camera that had been deployed in seas near East Antarctica.