Dracogyra subfuscus is a species of deep-sea gastropod in the family Peltospiridae, currently known only from the Longqi hydrothermal vent field on the Southwest Indian Ridge. This small gastropod is adapted to extreme environments, thriving in the high-temperature and low-oxygen conditions of hydrothermal vents. Its discovery highlights the unique biodiversity of vent ecosystems and provides valuable insights into the adaptations of organisms to these harsh habitats.