Hynobius shinichisatoi
Hynobius shinichisatoi, the Sobo salamander, has only been found in streams in the Sobo, Katamuki and Okue Biosphere Reserve, Japan. It is black in colour.
It had previously been described as:
- Pachypalaminus boulengeri Satō, 1954
- Hynobius boulengeri partim Nakamura & Ueno, 1963
- Hynobius boulengeri partim Nishikawa et al., 2001