Tree Leech

Tree Leeches, formerly called Barnacle Suckers are a type of Fauna found growing on the side of Coral Trees or walls. Occasionally they can be found on the seabed.

However, official artwork released by the developers has listed the Tree Leeches as potentially being hazardous or intractable in the future.

At the moment they may be harvested using any knife. They give Tree Mushroom Samples.

However, given that they have a name that is displayed when looking at them, it is very likely that they will be harvestable in future builds.

Appearance
Tree Leeches are circular crustaceans with a hole in their center. Their tops are a bright purple color.