Aega antarctica fish. It has strong muscles in its oesophagus and large salivary glands and rapidly fills its dilatable hind gut with blood. It then drops off the fish and spends several months on the seabed digesting the blood. In a research study, specimens of "Aega antarctica" were kept in a marine aquarium at the University of Oldenburg, Germany, where they were maintained at a temperature of . It was found that they would feed on a number of species of fish native to the North Sea and in this research they were fed on live European plaice ("Pleuronectes platessa"). One fish
Pacific sanddab Pacific sanddab The Pacific sanddab ("Citharichthys sordidus") is a species of flatfish. It is by far the most common sanddab, and it shares its habitat with the longfin sanddab ("C. xanthostigma") and the speckled sanddab ("C. stigmaeus"). It is a medium-sized flatfish, with a light brown color mottled brown or black, occasionally with white or orange spots. The Pacific sanddab is endemic to the northern Pacific Ocean, from the Sea of Japan to the coast of California. They are most commonly found at depths of , though the young inhabit shallower waters, occasionally moving into tide pools. It is an