pacificus, Marukawichthys Yabe [M.] 1983:18, Figs. 1-5 [Japanese Journal of Ichthyology v. 30 (no. 1); ref. 8263] Emperor Seamount Chain, central northern Pacific, 35°29.3'N, 171°42.0'E, depth 570 meters. Holotype: HUMZ 68657. Paratypes: CAS 51359 (1); HUMZ 68659-62 (1, 1, 1, 1); NSMT-P 21425 (1). •Valid as Marukawichthys pacificus Yabe 1983 -- (Mundy 2005:336 [ref. 28379], Prokofiev et al. 2025:41 [ref. 42722]). Current status: Valid as Marukawichthys pacificus Yabe 1983. Rhamphocottidae. Distribution: Northern-central Pacific: Emperor Seamount Chain. Habitat: marine.