Tree Leech

The Tree Leech, formerly known as Barnacle Sucker, is a non-hazardous type of "life form" belonging to the flora category.

It is found growing on the side of Tree Mushrooms or on the cave's wall.

Appearance
The Tree Leech is a small, circular plant having a hole in the center surrounded by jagged tooth-like structures.

It is capable of emitting dull pink bioluminescent glows.

Trivia

 * Official artworks released by the developers have listed Tree Leeches as potential hazards in the future updates.
 * Earlier versions of Subnautica featured an unimplemented giant crab-like fauna called the Sandworm, that launched surprise attacks on the player from a burrow that greatly resembled a large tree leech. It's possible at one point this was the additional stage of lifecycle hinted at in the PDA, and their reason for being listed as a hazard. However the Sandworm has since been removed.

Gallery
In Game Screenshots=