Bunderia misophaga gen. et sp. nov. is described from an anchialine cenote located on the Cape Range peninsula, northwestern Australia. This is the first epacteriscid calanoid known from Australia and represents the third genus of this family of mainly stygobiont copepods recorded in the Indo-Pacific region. Ordinary phenetic analysis points to the monotypic Enantronoides Fosshagen, Boxshall, and Iliffe, from an anchialine cave on the Bahama Islands, as the closest relative of the new genus. This suggests an ancient, relictual status for the new taxon. The predatory habits of the family Epacteriscidae are confirmed after the gut contents of Bunderia yielded remains of a not-yet-described misophrioid copepod.