Opostomias mitsuii Imai, 1941 .

Pitgum Dragonfish. To 40 cm (15.7 in) SL (Aizawa in Nakabo 2002). Western Pacific Ocean off Japan and southern Kuril Islands (Orlov and Tokranov 2019); British Columbia, 48°41’N, 126°29’W (Milkova et al. 2016) to off Point Conception, California (Berry and Perkins 1966). Depth: surface to 1,514 m (198–4,966 ft) (min.: Gillespie and Saunders 1994; max.: Shinohara et al. 2009).