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 (Pachypalaminus) boulengeri partim Nakamura & Ueno, 1963 Hynobius boulengeri partim Nishikawa et al., 2001 Thus see also Hynobius boulengeri.
External links Article explaining the wide divergence of Hynobius salamaders in Honshu from the late Miocene
References

