Lumbrinerides cf. laubieri (specimen NHM_ 4378_ECDS5) A posteriorly incomplete preserved specimen B anterior end with margins between prostomium and 2-rigned peristomium C anterior end with margins between prostomium, peristomium and chaetiger 1 D chaetigers 2–7 marked by arrows, showing the shift of parapodia from lateral to dorsal position E chaetiger 1 F chaetiger 2 G chaetiger 3 H chaetiger 4 with postchaetal lobe I chaetigers 5–6 with postchaetal lobes. Scale bars: 250 µm (A, C, D); 100 µm (B); 25 µm (F, G, H); 50 µm (I).