The Dealfish (Desmodema polystictum) is a saltwater fish of the family Trachipteridae that grows up to 110 cm.
Description
The polka-dot ribbonfish is a large, ribbon-shaped deep-sea fish of the ribbonfish family (Trachipteridae) from the open ocean. The species grows to about 1.1 metres and has a strongly laterally compressed, silvery, ribbon-like body; juveniles are studded with dark spots, to which the name refers, and have elongated fin rays. It lives epi- to mesopelagically in open water. As a predator it feeds on squid, small fishes and crustaceans. Owing to its rarity and open-sea habits it is usually seen only when it washes ashore. The species is harmless to humans.
Frequently asked questions
How do you recognise the Dealfish?
The Dealfish has an elongate, eel-like body, is mainly silver-grey and shows a spots pattern.
Where does the Dealfish live?
The Dealfish lives in the sea (marine waters) and is mostly found around open water.
How big does the Dealfish get?
The Dealfish grows to a maximum of about 110 cm. On average the species is around 100 cm.
Is the Dealfish dangerous to humans?
No, the Dealfish is harmless to humans.
Is the Dealfish edible?
The Dealfish is not usually eaten.
Download Fin's Fish Guide
Identify fish in seconds, log your catches and dives. Join the TestFlight beta.
All data
Identification
Appearance
Habitat & distribution
Behaviour & biology
For anglers
Safety
Status & sources
Same genus Desmodema
More from the family Trachipteridae
Download Fin's Fish Guide
Identify fish in seconds, log your catches and dives. Join the TestFlight beta.