Shadow Leviathan

The Shadow Leviathan is a species of Leviathan-class predator found in the Crystal Caves and the Fabricator Caverns.

Appearance
The Shadow Leviathan has an elongated black body with smooth skin and twin rows of 37 small red spots running from behind the head to just before the tip of the tail. Below each row of red spots is a shorter row of eight circular gill pores that run down the side. The head is composed of a triangular shield-like structure with three pairs of small black eyes and a large red ring in the center. The creature posses a flexible spinal cord allowing it to contract and retract its head. The creature's mouth is located on its underside just behind the head: it is a glowing blue tone, and lined with curved teeth resembling a ribcage with the sternum removed. The mouth appears to pass food directly into the creature's stomach, with no real throat structure present.

Seven pairs of jointed clawed appendages run down the sides of the mouth. These have spines along the inside edge to assist in securing prey. Seven more pairs of these appendages can be seen running down the body, decreasing in size as they get closer to the tail to the point that the final three pairs are little more than a small spine. This gives the impression that these grasping appendages once served as walking limbs in a distant bottom-dwelling ancestor, but have since been repurposed into their current form.

Propulsion comes from the large fins on the rear portion of the Shadow Leviathan's body. Though lacking a tail fluke, a large fin is present around halfway down the body on both the dorsal and ventral sides, the ventral fin having smaller fins in front of and behind it. The tail ends with a red point.

Design
The tail portion of the body is very similar in appearance to the black ghost knifefish and the row of holes on the body resemble the gill openings possessed by lampreys. The mouth and mandible design was based on the heads of arrow worms.

A scrapped alternate design closely resembled an oversized, predatory Sea Monkey.

Behavior
The Shadow Leviathan will grab your Seatruck or Prawn Suit to attack, pulling the vehicle into its mouth dealing damage until it is released. If the Shadow Leviathan attacks the player under 75 heath a cinematic death scene will instead play.

Bizarrely, although Shadow Leviathans do not attack small prey fish such as the Red Feather Fish, they will attack most hostile fauna. This includes the Brute Shark and the Chelicerate.

Gallery
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