Membranobalanus porphyrophilus sp. nov. cirri A–F holotype (WAM C66803) G–I paratype (SAMA C12706) J–L paratype (SAMA C12708). A–C Right cirrus I–III lateral view D right cirrus III intermediate segments E right cirrus IV lateral view F same, anterior ramus intermediate segments G left cirrus IV anterior ramus intermediate segments H right cirrus IV anterodistal angle of distal segment of pedical showing ctenoid scales I, J Ieft cirrus IV basal segments of rami showing posterior spines K close up of spines on posterior margin of J L close up of spines and posterodistal spines basal segments of J. Note: B, C, E damaged. Scale bars: 400 μm (A–C, E); 100 μm (D, F, L); 150 μm (G, I); 50 μm (H, K); 200 μm (J).