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. - Ziegler, Thomas; Pham, Cuong The; van Nguyen, Tan; Nguyen, Truong Quang; Wang, Jian; Wang, Ying-Yong; Stuart, Bryan L.; Le, Minh Duc (Zootaxa, 2021)