Ngdins were vampiric creatures used by the Yuuzhan Vong. A sluglike scavenger which moved about on a thousand tiny cilia, ngdins were tongue-shaped which absorbed nutrients from substances such as blood. The Yuuzhan Vong utilized ngdins as a cleaning tool, sending them to consume blood from sacrifices, as well as excess bits of flesh not thrown to the maw luurs. The cilia on their underside caused a stinging sensation on living flesh, which had a numbing effect on contact with the toxins it excreted. Like all of the Yuuzhan Vong tools, ngdins were immune to the effects of the Force.
- The New Jedi Order: Dark Tide I: Onslaught (First appearance)
- The New Jedi Order: Dark Tide II: Ruin (Mentioned only)
- The New Jedi Order: Agents of Chaos II: Jedi Eclipse
- The New Jedi Order: Balance Point
- The New Jedi Order: The Unifying Force