Gasterosteidae

Musashi-tomiyo

Pungitius nakamurai

Endemic Gasterosteid Fish of Japanese Waters

• Freshwater fish

The Musashi ninespine stickleback (Pungitius nakamurai) is a species of fish in the stickleback genus Pungitius. Endemic to Japan, reported in 1963 and named in 2026. It occurs only in the Motoara River in Kumagaya, Saitama Prefecture (old Musashi Province).