[2][3] Measuring approximately 4 cm (1.6 in) in length, this predatory amphipod is adapted to the extreme conditions of the hadal zone, making it one of the deepest-living predators identified to date.

[4][5] Dulcibella camanchaca belongs to the family Eusiridae and was formally described in 2024 by marine biologists Johanna Weston and Carolina Gonzále.

[8] The species epithet, camanchaca, originates from an Andean word meaning "darkness," referencing its deep-sea habitat.

[9][10] The species was discovered during a 2023 oceanographic expedition (Integrated Deep-Ocean Observing System [IDOOS])[11] that investigated the biodiversity of the Atacama Trench.

[12] The research team used advanced deep-sea exploration equipment to collect specimens from depths nearing 8,000 meters.