Lumbrineris sp. NHM_1741, specimen NHM_1741, unless stated otherwise A live anterior fragment of specimen in lateral view B maxillary apparatus specimen NHM_0229; insert – the detail of teeth on MII and detail of MIII, showing arcuate edge C 22nd parapodium with well-developed postchaetal lobe D limbate capillaries on chaetigers 4 and 5 E compound hooks on chaetiger 5, insert – detail of the hook dentition F compound hook from chaetiger 10 G simple multidentate hooded hook chaetiger 12, inset – detail of the hook dentition. Scale bars: 100 µm (C, D); 25 µm (E, F, G).