The megascolecid earthworms (Annelida, Oligochaeta, Megascolecidae) in the Phu Quoc island, Vietnam, with descriptions of three new species.

The megascolecid earthworms of the Phu Quoc island are intensively investigated. Twelve species in three genera ( Kinberg, 1867, Kinberg, 1867, and Sims & Easton, 1972) are recorded. Of these, Bantaowong & Panha, 2016 is recorded for the first time in Vietnam, and three species are newly described, namely , , and An identification key to 12 megascolecid species is provided as well.