Třída: Actinopterygii - paprskoploutví
Řád: Gadiformes - hrdloploutví
Čeleď: Macrouridae - hlavounovití

Synonyma: Bathygadus longifilis Goode & Bean, 1885; Hymenocephalus longifilis (Goode & Bean, 1885).

Typová lokalita: 28°47'30"N, 87°27'00"W, stanice Albatross 2392, hloubka 724 sáhů.

Reference: Goode, G. B. & T. H. Bean. 1885. Descriptions of new fishes obtained by the United States Fish Commission mainly from deep water off the Atlantic and Gulf coasts. Proceedings of the United States National Museum v. 8 (no. 543): 589-605.