The Eustomias pacificus lives in the bathypelagic, marine, depth range 0 - 1000 m environment.
Eustomias pacificus Gibbs, Clarke & Gomon 1983 Eustomias pacificus Gibbs, Clarke & Gomon 1983, Smithson. Contr. Zool. (380):94, fig. 27a. Type locality: Northwest Pacific Ocean, 21°20'N, 158°20'W, 0-170 m. Paratype: SIO 80-174 (1, 109.5 mm SL). More