Doublethread grenadier (Gadomus arcuatus)

Scientific name: Gadomus arcuatus Goode & Bean, 1886

The Doublethread grenadier (Gadomus arcuatus) is a marine fish of the family Macrouridae.

Biology

Head bones and integument are relatively tough; eyes are of moderate size; chin barbels are long and prominent; adults over 30 cm have a pronounced hump-back appearance; caudal fin is absent; the first fin rays of the dorsal pectoral and pelvic fins are very elongated; body color is generally brownish; the fin membranes, mouth and gill chamber blackish. This species does not have light organs.

Source: FishBase, licensed CC BY-NC 4.0.

Species facts

Scientific name: Gadomus arcuatus
Family: Macrouridae (Grenadiers or rattails)
Order: Gadiformes (Cods)
Class: Actinopterygii (Ray-finned fishes)
Maximum length: 58.0
Depth range: 610–1370 m (2001–4495 ft)
Environment: Marine; bathypelagic; non-migratory; depth range 610 - 1370 m
Climate: Deep-water
Distribution: Central Atlantic: Western Central Atlantic: Gulf of Mexico, Caribbean, and northeastern coast of South America. Eastern Atlantic: Morocco, Canary Islands, Azores and Portugal.
Conservation status (IUCN): Not Evaluated
Threat to humans: Harmless
Uses: Fisheries: of no interest
Resilience: Low, minimum population doubling time 4.5 - 14 years (Preliminary K or Fecundity.)

Sources

Taxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.

Last updated 27 September 2026