Ophioplinthaca brachispina sp. nov., paratype (IDSSE-EEB-SW0107) A dorsal arm B ventral arm C lateral arm D lateral arm plate (small thorns on the lateral arm plate surface shown in the orange rectangle). Abbreviations: dap dorsal arm plate, das dorsal arm spine, lap lateral arm plate, ts tentacle scale, vap ventral arm plate, vas ventral arm spine. Scale bars: 1 mm (A–C); 200 µm (D).

  Part of: Nethupul H, Stöhr S, Zhang H (2022) Review of Ophioplinthaca Verrill, 1899 (Echinodermata, Ophiuroidea, Ophiacanthidae), description of new species in Ophioplinthaca and Ophiophthalmus, and new records from the Northwest Pacific and the South China Sea. ZooKeys 1099: 155-202. https://doi.org/10.3897/zookeys.1099.76479