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The Atlantic hagfish (Myxine glutinosa) is a deep-sea, jawless fish found in the Atlantic Ocean, recognized for its primitive, skull-less evolutionary lineage. As a scavenger, it primarily feeds on carrion, often burrowing into deceased marine animals from the inside out. The species is biologically...
The Pacific hagfish is a deep-water, jawless fish native to the North Pacific Ocean. As a primitive scavenger, it feeds primarily on dead or dying marine life by burrowing into carcasses. It defends itself by producing large quantities of thick, sticky slime and by tying its own body into an overhan...
The spotted garden eel (Heteroconger hassi), described in 1959, is a marine fish found across the Indo-Pacific from the Red Sea to the western Pacific. Adults reach roughly 40 cm in length and live in large colonies on sandy seafloor areas at depths typically between 7 and 45 meters. Each individual...
The deepsea lizardfish (Bathysaurus ferox) is a benthic predator found in bathyal and abyssal zones worldwide. Characterized by its elongated, lizard-like body and large mouth filled with sharp teeth, it rests on the ocean floor waiting to ambush prey. It is notable within the vertebrate kingdom for...
The pearlfish (Carapus acus) is a slender, translucent fish belonging to the family Carapidae, found in the eastern Atlantic Ocean and Mediterranean Sea. It is notable for its commensal and sometimes parasitic relationship with holothurians (sea cucumbers), into whose cloacal cavity it enters tail-f...
The shortraker rockfish is a massive deep-sea scorpaenid found in the North Pacific, notable for its extreme longevity and holding the record as one of the longest-lived fishes.
The Spiny Lumpsucker is a small marine fish notable for the prominent, spiky tubercles covering its body and its modified pelvic suction disc.
The pancake batfish is a small, bottom-dwelling fish found in the Gulf of Mexico, notable for its flattened, disk-like body and its ability to walk on the seabed.
The Fangtooth Moray is a distinctive marine eel species recognized by its elongated jaws and prominent, razor-sharp, glass-like teeth.
The orange roughy is a relatively large deep-sea fish belonging to the slimehead family, found in the bathyal waters of the Atlantic, Indian, and Pacific Oceans. Renowned for its extreme longevity, the species can live for over 150 years and does not reach reproductive maturity until it is 20 to 30...
The Antarctic toothfish (Dissostichus mawsoni) is a large, predatory marine fish native to the cold, deep waters of the Southern Ocean surrounding Antarctica. Capable of reaching lengths of up to 220 centimeters, this species is a key component of the Antarctic marine ecosystem, serving as a vital f...
The Humantin, or Angular Roughshark, is a rare deep-sea shark native to the Mediterranean Sea, currently classified by the IUCN as an endangered species.
The bramble shark is a large, sluggish deep-sea shark notable for its body being covered in large, thorn-like denticles, a distinct feature described by Bonnaterre in 1788.
Patagonian toothfish (Dissostichus eleginoides) is a large, deep-water fish species belonging to the family Nototheniidae, found in cold Southern Ocean waters around sub-Antarctic islands and the southern tips of South America. It can reach over 2 meters in length and is long-lived, with some indivi...
The Prickly Dogfish is an uncommon deep-water shark found off southern Australia and New Zealand, distinguished by its remarkably triangular, inflated body shape.
The Giant Cusk Eel is an abyssal fish notable for reaching lengths of over three feet, making it one of the largest species within the Ophidiidae family.
The pelican flounder is an unusually large-mouthed flatfish found in deep waters, notable for its ability to swallow prey nearly as large as itself due to its enormous jaws.
The black scabbardfish is a deep-water predatory fish found in the Atlantic Ocean, notably serving as an important commercial fishery resource for Portugal and the Madeira islands.
The sablefish (Anoplopoma fimbria), often marketed as black cod, is a deep-water marine fish native to the North Pacific Ocean. It is highly valued in commercial fisheries for its high oil content, soft texture, and mild, buttery flavor. Sablefish can live in deep-sea habitats at depths of up to 2,7...
The ghost catshark is a rarely seen deep-sea shark notable for its pale, almost translucent appearance and preference for extreme slope depths, originally described in 1909.
The Ghost Flathead is a unique marine fish native to the deep coastal waters of the Indo-Pacific, recognized by its heavily armored head and elongated body.
The giant grenadier (Albatrossia pectoralis) is the largest species in the family Macrouridae, reaching lengths of up to approximately 2.1 meters. It is distributed across the North Pacific Ocean from Japan to California, inhabiting continental slope waters at depths ranging from roughly 140 to 3,50...
The Polar Skate is a deep-water cartilaginous fish adapted to frigid environments, commonly found at depths exceeding 300 meters in the Arctic Ocean.
The luminous hake, Steindachneria argentea, is a deep-water marine fish and the only recognized species in the family Steindachneriidae. It is distinguished by a ventral bioluminescent organ beneath the head and along the underside of the body. The species inhabits the western Atlantic, including de...
The Knifetooth Dogfish is a small, poorly understood deep-sea shark found in the eastern Atlantic Ocean, notable for its uniquely bladed, knife-like lower teeth.
The Largehead Hairtail is an elongated, predatory marine fish widely consumed by humans and forming a major commercial fishery in the East China Sea.
Bathysaurus mollis is a deep-sea predatory fish in the family Bathysauridae and one of the species commonly called deep-sea lizardfishes. It lives on or close to the ocean floor at bathyal and abyssal depths in tropical and subtropical waters. Its elongated body, broad mouth, and prominent teeth are...
The prickly shark is a bottom-dwelling deep-sea shark notable for its rough, sandpaper-like skin covered in dense, rough denticles, first scientifically described in 1931.
