Cave Crawler

The Cave Crawler is a aggressive life form that can be located on the habitation ship Aurora, on the Underwater Islands, on the Mountain Island, and in the Dunes.

Appearance
The Cave Crawler is a bluish-gray four-legged crustacean. It has a large, bioluminescent blue and white eye covering most of the top of its body. The Cave Crawler  has two mandibles on the front of its body, which are presumably used for feeding.

Behavior
The Cave Crawler cannot swim, but it also will not drown. Rather, it walks and jumps around. If the player touches it while it is on the ground, it will damage the player.

Cave Crawlers move in groups, typically falling from the "ceiling" of the Aurora and are aggressive towards the player, jumping towards and damaging the player when approached. Cave Crawlers are also able to climb onto the walls and ceilings of caves.

Trivia

 * These creatures bear a great resemblance to the spider creatures from the movie Lost in Space: They have disc-like bodies, they're hostile towards the player, and they roam around a derelict terraforming ship; much as the creatures from the movie roam the Proteus, another derelict ship that appears to have items on board for habitizing a new planet.
 * These creatures could also be a reference to the Head Crabs from the game HalfLife. Both of them have four limbs, and both jump to attack the player.