Supplementary material 2 from: Okanishi M, Kohtsuka H, Wu Q, Shinji J, Shibata N, Tamada T, Nakano T, Minamoto T (2023) Development of two new sets of PCR primers for eDNA metabarcoding of brittle stars (Echinodermata, Ophiuroidea). Metabarcoding and Metagenomics 7: e94298. https://doi.org/10.3897/mbmg.7.94298