Ophioplinthaca brachispina sp. nov., paratype (IDSSE-EEB-SW0107) A, B lateral arm plate C dorsal arm spine D ventral arm spine E disc spine F dorsal arm plate G–K vertebrae G proximal view H distal view I ventral view, J dorsal view, K lateral view. Abbreviations: d dorsal, de depression, dist distal, dl dorsal lobe, lac lateral ambulacral canals, mo muscle opening, no nerve opening, pb podial basin, prox proximal, ri ridge, th thorns, v ventral, vl ventral lobe. Scale bars: 800 µm (A, C, F–G, I–K); 500 µm (B, E, H); 100 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