Four new species of (Annelida, Eunicida, Eunicidae) from the east coast of Peninsular Malaysia.

Four new species of are described from Terengganu state on the east coast of Peninsular Malaysia, using morphological and molecular (cytochrome oxidase subunit I (COI) gene) data. These species belong to different groups of : belongs to Group A (Mossambica), and belong to Group B (Sanguinea) and belongs to Group E (Gravelyi). is characterised by having only limbate chaetae, absence of subacicular hooks, three types of pectinate chaetae including wide, thick isodont with short and slender inner teeth, and pectinate branchiae with up to nine branchial filaments.