The Abyss Eater, or Piscis Abyssivore, is a rare deep sea carnivore named for its affinity for eating so many different types of deep sea animals. It lives exclusively in the oceanic zone, away from most organisms in the ocean, and can be found in the abyssal and hadal zones, where water pressure is high and virtually no sunlight exists. Males occasionally interact with the benthic zone, while females may spend months at a time living in dark tunnels at the bottom of the ocean.
The Abyss Eater's most striking feature is its huge mouth, which is used for swallowing prey. The dark blue scales on its back help it hide from some of the larger predators in the upper abyssal zone, and its skin is strong enough for it to survive at the deepest parts of the ocean, making it extremely difficult to track down. It has massive, very sensitive eyes it uses in the abyssal zone, and it relies on special electric sensors on its snout to find prey in deep sea trenches. Like most fish, it breathes through its gills, located behind its jaw, filtering oxygen out of the saltwater for energy.
Like other aquatic vertebrates, the Abyss Eater is nektonic, swimming at its own will, often against ocean currents. It has the same set of fins most fish have, and it powers forward by moving its body from side to side while using its fins to steer, just like most other fish. The Abyss Eater has a particularly powerful tail, which it uses to increase speed while hunting prey in the deep, or to escape occasional predators.
The Abyss Eater is known to eat anything from zooplankton to shrimp, anglers, crabs, and squids. These are usually found with either its large eyes or its electric sensors. It usually swallows its prey whole, but larger prey is first paralyzed by a venomous mucus on the inside of its mouth. At up to four feet in length, the Abyss Eater is a giant in the abyss, and is not easily intimidated. Its massive size is mainly for protection, and is also why they eat so much.
To find a mate, male Abyss Eaters shine bioluminescent stripes on their sides in deep sea trenches. Once a female uses her own stripes to signal she wishes to mate, she must then find a tunnel where she can lay and protect her eggs while the male delivers food. Females will regularly spit venomous mucus onto the eggs before they hatch to keep other creatures from stealing them.