Pronounced sexual dimorphism . In females, the body is spherical, without scales , covered with leathery spines. The head is large with a pair of horn-shaped spikes, the eyes are small or very tiny. The parietal bones are absent. The mouth is large, oblique, reaches the eyes. The lower jaw is thick, protrudes in front of the upper jaw. In the gill membrane 6 rays. The teeth on the jaws are short, thin and curved. There are no teeth on the opener . The snout is stupid and short. Snout and anterior part of the lower jaw with numerous leathery tubercles resembling warts in shape. Bone plates with a bone spike in the middle are randomly scattered on the body. The spiny ray of the dorsal fin is transformed into thick illicium with an esk consisting of numerous tentacles. Illicius is fat with massive esk. The soft part of the dorsal fin is short with 5-6 rays. There are four soft rays in the anal fin; its base is short. Both fins are shifted to the caudal fin. The lateral line is in the form of small tubercles [2] . Females reach a length of 60 cm [3] .
In males, after metamorphosis, the teeth on both jaws are transformed into a single hard bone plate, with hooked teeth on the upper plate; elongated leathery spikes over the upper plate in the middle of the snout. The nostrils are located on the sides of the head, the posterior ones are significantly enlarged. The eyes are spherical in shape, as the fish grow, they become egg-shaped with a narrow anterior space (the pupil is larger than the lens). The skin covering the head and body, without spikes. There are no tapered ear spikes.
Color varies from dark brown to black. Eska glowing with tentacles of white color.
They are a predator. It hunts in the middle layers of water, attracting prey with the help of “bait” - eski . The diet includes small fish, crustaceans and squid. Adult fish live at depths of 100-300 m. Juveniles are caught at the surface and at a depth of 3000 m [4] .
