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Haplophryne mollis, the ghostly seadevil or soft leftvent angler, is a species of anglerfish in the family Linophrynidae and is the only species in the genus Haplophryne. It is found in the bathypelagic and mesopelagic zones of tropical and subtropical parts of the world's oceans at depths down to about 2,250 m (7,400 ft).
Has Halloween come early? Monstrous deep sea angler fish have washed up on the shores of a park in California
The name "anglerfish" derives from the species' characteristic method of predation. Anglerfish typically have at least one long filament sprouting from the middle of their heads, termed the illicium. The illicium is the detached and modified first three spines of the anterior dorsal fin. In most anglerfish species, the longest filament is the ...
The pectoral fins are like wide fans behind the head, and the pelvic fins are like small hands below the head. The American anglerfish can grow to a length of 140 cm (55 in), but 100 cm (39 in) is a more usual size. The greatest recorded weight is 22.6 kg (50 lb) and the greatest recorded age is 30 years. [3]
The esca is made up of an appendage on the rear to the side with a flattened, opaque, distal tip and another tapering appendage on its tip which has an opaque distal tip, there is a large number of filaments on the esca in individuals with a length greater than 44 mm (1.7 in), the number and length of filaments is less in smaller individuals.
The humpback anglerfish (Melanocetus johnsonii) is a species of black seadevil in the family of Melanocetidae, which means "black sea monster" in Greek. [1] The species is named after James Yate Johnson, the English naturalist who discovered the first specimen in Madeira in 1863. [2] The common names include anglerfish, viperfish and fangtoothfish.
Rhycherus filamentosus, commonly known as the tasselled anglerfish, [3] [4] is a species of frogfish endemic to southern Australia in the southwestern Pacific Ocean and southeastern Indian Ocean. It is a well-camouflaged predator and lies in wait on the seabed for unwary prey to approach too close.
In migrating to the surface (400m depth) at night, they prove their ability to withstand large temperature changes of up to 7°C daily. They have been recorded in waters ranging from 4 to 14.5°C, highlighting the wide range of temperatures viperfish are capable of surviving in. [ 14 ]