Maximum likelihood (ML) tree of Ophioplinthaca and Ophiophthalmus, based on partial COI sequences (bootstrap support values were generated with rapid bootstrapping algorithm for 1,000 replicates; red = new species).

  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.