Very little is known about black sea devils, which belong to the genus Melanocetus. Scientists aren't even sure how long they live. Perhaps the fish's most prominent feature—made famous in the Disney/Pixar movie Finding Nemo—is the lure. This modified fin glows at the tip, and the sea devil uses it to attract prey.
The word Leviathan has come to refer to any sea monster, and from the early 17th century has also been used to refer to overwhelmingly powerful people or things (comparable to Behemoth, also a biblical term), influentially so by Hobbes' book (1651).
This ghostlike fish that lurks on the ocean floor might be one of the spookiest creatures of the deep, dark ocean. Chimaeras also are known as ghost sharks, ratfish, spookfish, rabbitfish and water bunnies.
Devilfish is the common name of octopus. In earlier times, its morphology and external appearance was considered to be evil by men in fishing boats. Though it shares gills and aquatic habitat with fishes, octopus is not a fish. It comes under the phylum mollusca.
Devilfish are usually either blackish-blue or brown on the top, and white below. They possess slender and lengthy tails that are covered by thorny protrusions. Devilfish can sometimes grow to 17 feet or so. They possess several sets of fins, which are the cephalic, pelvic and pectoral fins.
The devil fish or giant devil ray (Mobula mobular) is a species of ray in the family Mobulidae. It is currently listed as endangered, mostly due to bycatch mortality in unrelated fisheries.
The giant devil ray (Mobula mobular) is a large marine vertebrate and can reach up to 5.2 m in disc width (DW), although specimens of about 3 m DW are most common. This large epipelagic batoid fish inhabits the entire Mediterranean Sea and possibly the adjacent Atlantic waters.
Anglerfish. This fish is truly the stuff nightmares are made of. In addition to its spiky teeth, the Anglerfish also has a bioluminescent 'fishing pole' that hangs before its face, a dorsal spine packed with millions of light-producing bacteria.
The Humpback Blackdevil is a soft-bodied fish that lacks scales and pelvic fins. Females have a large head and mouth, with long pointed teeth. There is a short illicium with a bulbous esca on the snout. Live fish are black. Two species of Melanocetus occur in Australian waters.
The Amblyopsidae are a fish family commonly referred to as cavefish, blindfish, or swampfish. They are small freshwater fish found in the dark environments of caves (underground lakes, pools, rivers and streams), springs and swamps in the eastern half of the United States.
Mythic Kraken
Hundreds of years ago, European sailors told of a sea monster called the kraken that could toss ships into the air with its many long arms. Today we know sea monsters aren't real--but a living sea animal, the giant squid, has 10 arms and can grow longer than a school bus.
Sea monsters are beings from folklore believed to dwell in the sea and often imagined to be of immense size. Marine monsters can take many forms, including sea dragons, sea serpents, or tentacled beasts. They can be slimy and scaly and are often pictured threatening ships or spouting jets of water.
Giant isopods (Bathynomus giganteus)
Ursula debuted in the 1989 adaptation of The Little Mermaid (where she is voiced by Pat Carroll), as a sea witch who is scheming to take advantage of the ambitions of King Triton's youngest daughter Princess Ariel in order to usurp the throne and turning merpeople into seaweed for her garden.
The sea lamprey (Petromyzon marinus) is a parasitic lamprey native to the Northern Hemisphere. It is sometimes referred to as the "vampire fish".
Black seadevils are small, deepsea lophiiform fishes of the family Melanocetidae. The five known species (with only two given common names) are all within the genus Melanocetus. They are found in tropical to temperate waters of the Atlantic, Indian, and Pacific Oceans, with one species known only from the Ross Sea.
Devil fish are most common in the Mediterranean Sea and can be found elsewhere in the Eastern Atlantic Ocean, off the southwest coast of Ireland and south of Portugal, and possibly in the northwest Atlantic.
This genus of fish lives in both the mesopelagic, or twilight zone, 200-1000 meters below the surface, and bathypelagic zone, 1000-4000 meters below the surface (Pietsch, 2009; Townsend, 2012).
No matter how you look at it, the Blobfish has to be one of the most miserable looking animals you have probably ever encountered. And, it has a reason to be - If the fisherman continue to overfish this glum looking animal, it will soon disappear forever!
Anglerfish
Commonly known as “Sea Devils,” Anglerfish are the archetypal horror of the deep. They lurk on the bottom, waiting for unsuspecting prey to come their way. Their mouths are so big they can eat fish almost as big as they are. Anglerfish inhale their meals whole.
The red coffinfish is possibly the saddest underwater creature we have ever seen.
The Tasmanian devil is the world's largest carnivorous marsupial, reaching 30 inches in length and weighing up to 26 pounds, although its size will vary widely depending on where it lives and the availability of food.
Rays in general are considered harmless and inoffensive. The Atlantic devil ray has no defensive spine on its tail. However, due to their great size and power (especially in the case of M. mobular or Manta birostris), larger specimens may damage small boats and become dangerous to humans when harpooned or hooked.
#7 Despite their namesake, devil rays are actually harmless, shy creatures and filter-feed on plankton, krill and small fish.