Megakarytes

The Megakarytes are minuscular worm-like tyranid biomorphs that are usually deployed in large waves. They are among the simplest creatures produced by the Hive Mind as they serve only one purpouse, supporting the largest creatures by repairing their wounds using a white gluey substance they produce. The fluid is created with their own biomass, meaning that countless of this creature die while attending to their objective, a small price to pay for the assault success.