Terebellides norvegica sp. nov. (species 8; paratypes, GNM15130 and GNM15134), SEM micrographs. A anterior end, left lateral view B branchial lobes, ventral view C anterior dorsal branchial lamellae and papillae D TC4 to TC6, lateral view. Abbreviations: abl – anterior branchial lobe; bdl – branchial dorsal lobe; bdlfl – branchial dorsal lobes fusion line; bdltp – branchial dorsal lobe terminal papilla; blp – branchial lamellae papillae; bt – buccal tentacles; dpn – dorsal projection of notopodium; gc – geniculate chaetae; gr – glandular region; loli – lower lip; np – nephridial papilla; TC – thoracic chaetiger; tll – thoracic lateral lappets.