(Fig. 4 G)
Material examined. Nine specimens, 537. 0–814.0 mm TL: MNRJ 26761 (1, 683.0 mm), AG, ASTRO 2003021001; MNRJ 26762 (1, 650.0 mm), AG, ASTRO 2003021002; MNRJ 26763 (1, 814.0 mm), T, E- 549; MNRJ 26764 (1, 703.0 mm), AG, ASTRO 2003020801; MNRJ 26765 (1, 605.0 mm), AG, 16 B; MNRJ 26766 (1, 692.0 mm), T, E- 528; MNRJ 26789 (1, 556.0 mm), AG, ASTRO 2003021403; MNRJ 26791 (1, 605.0 mm), AG, ASTRO 2003021002; MNRJ 27103 (1, 537.0 mm), T, E- 507.
Distribution. Synaphobranchus oregoni was described from the Gulf of Mexico; it is also known from the Indian Ocean, tropical Atlantic, and eastern Pacific. In the WSA it was previously recorded from the Rio Grande rise (Robins & Robins 1989; Sulak & Shcherbachev 1997; Brickle & Laptikhovsky 2002).