Rockgrub

The Rockgrub is currently the smallest passive life form in Subnautica, belonging to the fauna category.

Rockgrubs mostly dwell in cavernous areas.

Appearance
The Rockgrub is tiny in size, and glows a bright bioluminescent green. It has a slim, round, segmented body with two swimming fins on either side, and a larger flipper serving as the tail.

The Rockgrub has five appendages on each side of its body, and a circular maw containing many small teeth.

Trivia

 * Code in the shared assets refer to the Rockgrub as the Rock Puncher Larva. By contrast, an early Trello card refers to them as "RockPuncher Food".