Ziegler, T., Pham, C.T., van Nguyen, T., Nguyen, T.Q., Wang, J., Wang, Y.-Y., Stuart, B.L. and Le, M.D. 2021. Erratum: THOMAS ZIEGLER, CUONG THE PHAM, TAN VAN NGUYEN, TRUONG QUANG NGUYEN, JIAN WANG, YING-YONG WANG, BRYAN L. STUART & MINH DUC LE (2019) A new species of Opisthotropis from northern Vietnam previously misidentified as the Yellow-spotted Mountain Stream Keelback O. maculosa Stuart & Chuaynkern, 2007 (Squamata: Natricidae). Zootaxa, 4613, 579–586. Zootaxa. 4903, 4 (Jan. 2021), 598–598. DOI:https://doi.org/10.11646/zootaxa.4903.4.8.