came across some more information
Venus flytrap sea anemone
Venus flytrap sea anemone
Actinoscyphia aurelia (Stephenson, 1918)
The Venus flytrap sea anemone (Actinoscyphia aurelia) is a large sea anemone that superficially resembles a Venus flytrap. It closes its tentacles to capture prey or to protect itself. It is a deep sea species.
This sea anemone is found in muddy situations at bathyal depths in deep water canyons in the Gulf of Mexico. It has also been observed at several sites in the upwelling region off the coast of West Africa, but is uncommon elsewhere.
Venus flytrap sea anemone is a passive suspension feeder, and orients itself on its often slender column so that it faces the upwelling current. Its pedal disc is small, and its tentacles are short compared to the large, concave oral disc, which is funnel or mushroom-shaped. It extends its tentacles in two rows, one reflexed back and one sloping forward, and collects food particles as they drift past. Although usually considered sessile, the Venus flytrap sea anemone sometimes moves, particularly as a juvenile.
During deep water research off Cap Blanc, Mauritania, at depths between 1,000 and 2,000 metres (3,300 and 6,600 ft), the Venus flytrap sea anemone and the irregular sea urchin Pourtalesia miranda were found to dominate the benthic community.
In 2004 a mass mortality event occurred adjoining an oil pipeline off the Ivory Coast. Large numbers of the tunicate Pyrosoma atlanticum were involved, the moribund carcasses sinking to the seabed and accumulating in canyons and by the pipeline. Species of megafauna found feeding on the gelatinous detritus varied by depth. At a depth of 900 metres (3,000 ft) few fish were present, but Venus flytrap sea anemones were numerous. Other scavenging invertebrates at this depth included the sea anemone Actinostola sp., the sea penPennatula sp., the sea urchins Phormosoma sp., Mesothuria sp. and Ophiolepadidae, the penaeid shrimp Parapenaeus sp. and the sea spider Colossendeis sp
FEATURES OF THE VENUS FLYTRAP SEA ANEMONE
The Venus flytrap sea anemone is a comparatively large anemone whose shape and movement are much like those of a Venus flytrap plant. These sessile, benthic animals can be found in warm waters of the Atlantic Ocean. They're adaptable creatures that, although rare, thrive in environments where conditions are favorable.
The Venus flytrap sea anemone varies greatly in size, from just a few inches tall to a foot tall and almost a foot in diameter. A. aurelia's size depends on age and the available food supply. Like other anemones, the Venus flytrap anemone resembles a flower, but is actually an animal. It consists of a stem-like body topped with a wide mouth-like disk surrounded by tentacles. These anemones vary in color—they often have white or pastel bodies with brightly colored disks and tentacles in shades of pink and orange. They're unusual among anemones because they stand upright and yet are not fully anchored to the substrate. This allows the animals to be swept away rather than buried when the sediment shifts with underwater currents. If threatened, the Venus flytrap anemone can close its disk with the tentacles inside and retract itself so only the stem remains exposed.
Found living in depths between 1,500 and 5,000 feet, Actinoscyphia aurelia is one of the lesser-known deep-sea anemone species. These animals have been found and studied in the Atlantic Ocean off the western coast of Africa and in the Gulf of Mexico. Near Africa they have been studied in the Mauretanian region and near Cap Blanc. In these areas A. aurelia is found in high population densities at certain spots on the deep continental shelf. It seems to do especially well in this area at depths of about 3,000 feet. Researchers believe it does well here because the ocean currents are relatively mild. A. aurelia has been found living on rocks, underwater debris, even other sessile invertebrates. In the Gulf of Mexico it has been studied living on the remains of shipwrecks.
The Venus flytrap anemone gets its name from its appearance and how it feeds. Actinoscyphia aurelia's disk is able to fold in half, like a tortilla folding into a taco shape, trapping its food inside. The food is then digested in the mouth at the center of the disk. These animals are detritivores: they eat particles of organic matter floating in the water column. When detritus lands on their tentacles or in their open disks, they close to capture the victuals inside. Anemones' bodies are filled with a gel-like substance called mesoglea, which is what allows them to move and change their shape with such elasticity. Deep sea anemones like A. aurelia tend to be detritivores rather than carnivores because of the lack of appropriately sized live prey at these depths.
Venus flytrap sea anemones are successful reproducers. They reproduce when the males release sperm into the water and the females release eggs. The fertilized eggs remain on the substrate until they hatch. The eggs hatch into pelagic larvae, or planula, which swim in the water column in the mid-ocean range. After feeding and developing, the planula eventually settle on the substrate in a hospitable environment, where plenty of food and few predators are present. After settling, the larvae develop into polyps, or juvenile anemones. Found in large numbers in certain habitats, Actinoscyphia aurelia is considered capable of reproducing rapidly when conditions are favorable. Venus flytrap anemones may be capable of asexual reproduction as some other anemone species are, although this behavior has not been documented.