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
Orange-eyed nudibranch cerata are reddish or orange with white tips. The colour of the cerata varies with diet. This nudibranch feeds on a variety of hydroids. Its egg mass is a broad coil of one or two whorls. Orange-eyed nudibranch The orange-eyed nudibranch, scientific name "Cratena capensis", is a species of sea slug, specifically an aeolid nudibranch. It is a marine gastropod mollusc in the family Facelinidae. This species has only been found around the South African coast from Saldanha Bay to Port Alfred, intertidally to at least 30 m. It is endemic to South Africa. The orange-eyed nudibranch grows to between