Oqa
this bio-organic membrane was used by the Yuuzhan Vong as the connecting tube which allowed two of their starships to dock with one another. Individual Yuuzhan Vong could then travel back and forth between the ships by traversing the length of the oqa membrane. The name oqa was derived from the word used to describe the proboscis of a Yuuzhan Vong pack animal. The interior of the oqa membrane was continually bathed with noxious slime, which was secreted by the oqa as a sterilization and decontamination agent. The floor of an oqa was referred to as a microbial mat, and was constantly swept clear of debris by clusters of tiny, white arachnids.