Mentodus eubranchus (Matsui & Rosenblatt, 1987) .

To 11.4 cm (4.5 in) SL (Matsui and Rosenblatt 1987). Oregon (Matarese et al. 1989) to Gulf of California to Pacific coast of Mexico; central Pacific (Matsui and Rosenblatt 1987). Bathypelagic; depth: below 1,000 m (3,280 ft) (Matsui and Rosenblatt 1987).