The Slijmklauw is a crustacean, with an outer shell and no endoskeleton. It has a short body, about half a meter long, and 4 pairs of legs, with 2 pairs of claws, used for slicing open the thin bark of the Drenkenvat.
For a mouth, the Slijmklauw has a proboscis that has nearly friction-less sides to prevent sap from drying and causing it to stick in the mouth and make the Slijmklauw starve to death. The sap then goes to a series of intestine-like tubes that absorb sugar and water to supply it with energy. The excess products are excreted from joints of its exoskeleton, which also hydrates the skin and keeps it healthy.
With a six chambered heart, 3 atria, and 3 ventricles, the Slijmklaw has a rather complex cardiovascular system. The heart pumps blood to the lungs, where it is then oxidized by the one large lung which is supplied by a large opening below the eating proboscis. The blood then oxidizes the muscles.
The brain is relatively small in proportion, and only governs movement and a few other things. It takes little oxygen, and is centered around only one large vein, spanning the length of it. The brain takes up the flat back, and is sheltered by strong muscles. Nerves come off of all areas, and has no main nerves.
Nectarivorous, the Slijmklauw eats the sap-like nectar of the Drenkenvat. It can get both sugars and water from this, and gets most other nutrients from other parts of the tree, which it rarely eats.
Slijmklauw live in large groups of 30 to up to 300. They build a large hive, where they go in waves to collect nectar for the hive. However, there is no leader and each Slijmklauw gets an equal ration of sap.
Mainly depending on instinct, not much variety has been seen in the Slijmklauws' behaviour. A day in its life could be described as boring, rarely sleeping, only 1/15 of the Krijgvolk day is used for rest, then a laborious day of finding sap for the hive. They eat about 1/4th of their body weight of nectar every day, after finding sap.
However unintelligent, the Slijmklauw exhibit an interesting way of storing nectar and keeping it fresh. They expand their hive under a pool of water, and store excess sap in there. This keeps it cold, and it spoils much slower.