Broomfin dragonfish (Thysanactis dentex)

Scientific name: Thysanactis dentex Regan & Trewavas, 1930

The Broomfin dragonfish (Thysanactis dentex) is a marine fish of the family Stomiidae.

Biology

Dorsal soft rays (total): 17-18; Anal soft rays: 21 - 25. Body slender. Chin barbel as long as head, pigmented with white spots. Tip of barbel white, small spindle-shaped bulb, minute and rounded terminal body.

Source: FishBase, licensed CC BY-NC 4.0.

Species facts

Scientific name: Thysanactis dentex
Family: Stomiidae (Barbeled dragonfishes)
Order: Stomiiformes (Lightfishes and Dragonfishes)
Class: Actinopterygii (Ray-finned fishes)
Maximum length: 18.0
Depth range: 100–1000 m (328–3281 ft)
Environment: Marine; bathypelagic; depth range 100 - 1000 m
Climate: Deep-water
Distribution: Pacific and Atlantic: in tropical to temperate waters. Eastern Atlantic: common in mid-ocean between 10?N and 5?S, single record at 19?S 5?W and at 30?S 5?E. Western Atlantic: Lesser Antilles to Brazil.
Conservation status (IUCN): Not Evaluated
Threat to humans: Harmless
Resilience: High, minimum population doubling time less than 15 months (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