Marphysa merchangensis sp. nov. Holotype UMTAnn 2149 (B–H), paratype UMTAnn 2148 (A). Light microscopy images and digital drawing A anterior end, lateral view B anterior end, dorsal view. Arrows indicate eyes C maxillae, dorsal view D mandibles, dorsal view E parapodium, chaetiger 10 F parapodium, chaetiger 134 G parapodium, chaetiger 250 H posterior segments and pygidium, ventral view. Arrows show the short pair of pygidial cirri. Abbreviations; MI–MV: maxillae I–V, Ac: aciculae, Dc: dorsal cirrus, Vc: ventral cirrus, PCl: prechaetal lobe, Cl: chaetal lobe, PtCl: postchaetal lobe, Sah: subacicular hook, Bf: branchial filament. Scale bars: 1 mm (A–D, H); 0.1 mm (E–G).