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Dulcibella camanchaca is a species of amphipod crustacean discovered in the Atacama Trench, at depths of nearly 8,000 m (26,000 ft) in the South Pacific Ocean near Chile. [2] [3] Measuring approximately 4 cm (1.6 in) in length, this predatory amphipod is adapted to the extreme conditions of the hadal zone, making it one of the deepest-living predators identified to date.
Stygiomedusa gigantea, [a] commonly known as the giant phantom jelly, is the only species in the monotypic genus of deep sea jellyfish, Stygiomedusa. It is in the Ulmaridae family . [ 2 ] With only around 110 sightings in 110 years, it is a jellyfish that is rarely seen, but believed to be widespread throughout the world, with the exception of ...
Kessler, K. T., 1860: A zoological voyage to the northern coast of the Black Sea and Crimea in 1858. Kyiv : 1–248, Pls. 1–2. Murgoci, A. A., 1940: Étude sur quelques espèces du genre Lepadogaster de la mer Noire.
Bathymodiolus thermophilus is found clustered around deep sea thermal vents on the East Pacific Rise between 13°N and 22°S and in the nearby Galapagos Rift at depths around 2800 metres (one and a half miles). [4] [5] Deep sea hydrothermal vents are frequently found along tectonic plate boundaries, and underwater mountain ranges and ridges.
Praya dubia, the giant siphonophore, lives in the mesopelagic zone to bathypelagic zone at 700 m (2,300 ft) to 1,000 m (3,300 ft) below sea level. It has been found off the coasts around the world, from Iceland in the North Atlantic to Chile in the South Pacific. [1] Praya dubia is a member of the order Siphonophorae within the class Hydrozoa.
The black seadevil family, Melanocetidae, was first proposed as a subfamily in 1878 by the American biologist Theodore Gill. [2] The only genus in the family is Melanocetus which was proposed as a monospecific genus in 1864 by the German-born British herpetologist and ichthyologist Albert Günther when he described the humpback anglerfish (M. johnsoni). [3]
By the time the family evolved, ostensibly in the Old World, the North Atlantic possibly had become too cold and deep for these warm-water species to cross. [14] The common cuttlefish ( Sepia officinalis ), is found in the Mediterranean, North and Baltic seas, although populations may occur as far south as South Africa.
The average commercial catch size is commonly between 35 and 45 centimetres (14 and 18 in) in length, again, varying by area. The orange roughy also has many predators, like bigger sharks such as goblin sharks and megamouth sharks, and larger fish. Oilfish also sometimes scoop up orange roughy on the ocean floor. [citation needed]