Xenomystax atrarius Gilbert, 1891 .

Deepwater Conger or Twinpored Eel. To 100 cm (39.3 in) TL (Smith in Fischer et al. 1995). Vancouver Island, British Columbia (Hart 1973); Newport Beach, southern California (Seigel 1987) to central Chile (37°31’S) (Kong and Meléndez 1991), including Gulf of California (Eschmeyer and Herald 1983) and Islas Galápagos (Grove and Lavenberg 1997). Depth: 116–1,401 m (380–4,595 ft) (min.: Robertson et al. 2017; max.: Morera et al. 2019).