In this way they are closer to mesopelagic fishes than bathypelagic fishes. The Argentiniformes are smallish silvery or dark and generally bathypelagic ocean fishes. Below this zone the deep sea begins, consisting of the aphotic "bathypelagic", "abyssopelagic" and "hadopelagic". It implies higher rates of reminerlization in the bathypelagic zone. Lancetfishes are among the largest living bathypelagic fish forms. Stomach analysis has also shown that the diet consists mostly of pelagic or bathypelagic organisms. They are found from the intertidal to the bathypelagic zones. They are predominantly piscivores, hunting deep-dwelling demersal and bathypelagic fishes. The behaviour of bathypelagic fish can be contrasted with the behaviour of mesopelagic fish. Bathypelagic fishes are not normally found below 3,000 metres. Because viperfish live in bathypelagic environments inaccessible to humans, little is known about their habits. Some deep-sea anglerfishes of the bathypelagic zone emit light from their escas to attract prey. The largest krill species is the bathypelagic "Thysanopoda spinicauda". The bathypelagic aggregates mostly resembled those found in the surface ocean. Bathypelagic fish are black, or sometimes red, with few photophores.