Bathysaurus

It is also called as deepsea lizardfish. The strong thick pelvic fins probably serve as props when the fish is resting on the bottom waiting for prey. Feeds primarily on fish. They have been found at depths of 600 m to 3500 m.

https://en.wikipedia.org/wiki/Bathysaurus_ferox

Astronesthes

Astronesthes also called as snaggletooth is black with purplish luminous areas on the side of the body. It has an elogate, slightly compressed body that lacks scales. It grows to 28cm in standard length.

https://www.amonline.net.au/fishes/fishfacts/fish/apsychrol.htm

Deep Sea Octopus

The deep sea octopus also called as Dumbo, is equipped with large fins (which may resemble mammalian ears) to help it swim.

Viperfish

Few fish are more grotesque-looking than the viperfish. The viperfish grows to between 12 and 24 inches in length. Viperfish's teeth are so large in fact that they do not fit inside its mouth. The viper is thought to use these sharp teeth to impale its victims by swimming at them at high speeds. Vipers have a hinged skull, which can be rotated up for swallowing large prey.

https://www.seasky.org/monsters/sea7a1d.html

Blobfish

Blobfish are found at depths where the pressure is several dozens of times higher than at sea level, which would likely make gas bladders inefficient. To remain buoyant, the flesh of the blobfish is primarily a gelatinous mass with a density slightly less than water; this allows the fish to float above the sea floor without expending energy on swimming.

http://www.teara.govt.nz/EarthSeaAndSky/SeaLife/DeepSeaCreatures/...