Map showing the type locality of Tylototriton ziegleri in Ha Giang, Vietnam (1); the collection site of T. ziegleri in Malipo, Yunnan, China (2); the distributions of T. cf. ziegleri in Cao Bang, Vietnam (3 and 4); the distribution of T. cf. ziegleri in Jingxi, Guangxi, China (5); the type locality of T. verrucosus designated by Nussbaum et al. (1995) in Longchuan, Yunnan, China (6); the type locality of T. panwaensis in Kachin, Myanmar (7); the collection site of T. panwaensis in Tengchong, Yunnan, China (8); and the collection site of T. panwaensis in Yingjiang, Yunnan, China (9).