Hara, S., Nishikawa, K., Matsui, M., & Yoshimura, M. (2023). Morphological differentiation in giant salamanders, Andrias japonicus, A. davidianus, and their hybrids (Urodela, Cryptobranchidae), and its taxonomic implications. Zootaxa, 5369(1), 42–56. https://doi.org/10.11646/zootaxa.5369.1.2