Trachinocephalus gauguini Polanco Fernández, Acero P. & Betancur-R. 2016 (non Lacepède, 1803)

Andréfouët, Serge, Chen, Wei-Jen, Kinch, Jeff, Mana, Ralph, Russell, Barry C., Tully, Dean & White, William T., 2019, Checklist of the marine and estuarine fishes of New Ireland Province, Papua New Guinea, western Pacific Ocean, with 810 new records, Zootaxa 4588 (1), pp. 1-360 : 65

Trachinocephalus gauguini Polanco Fernández, Acero P. & Betancur-R. 2016 — Marquesas snakefish

Status at New Ireland. First record from New Ireland by Wang et al. (2018), based on a NTUM 11085 and NTUM 11212 (2 specimens, St. CP 4455 and CP4456, northeast of Bangatang ).

Distribution and habitat. New Ireland: 2.—General distribution: Marquesas Islands. Found on sand or sandrubble areas of the lower continental and insular shelf and upper slope, 3–400 m depth. Marine.