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Littlescale threadfin (Polydactylus oligodon) — Polynemidae

Littlescale threadfin

Polydactylus oligodon
Family: Polynemidae
LC · Least Concern

The Littlescale threadfin (Polydactylus oligodon) is a brackish-water fish of the family Polynemidae that grows up to 46 cm.

Length
46 cm
Water
Brackish
Diet
Carnivore
Behaviour
Schooling
Activity
Nocturnal
Body shape
Elongated (eel-like)
Substrate
Sand / mud bottom
Danger
Harmless
Edibility
Commonly eaten

Description

The littlescale threadfin is a threadfin from the western Atlantic, from Florida and the Caribbean to Brazil. The species grows to about 46 cm and has a silvery body and, characteristic of the threadfins, several free, thread-like lower pectoral fin rays that serve as feelers. With them it searches turbid coastal and surf water for shrimp, crabs and small fish. It is a valued food fish. The IUCN assesses the species as Least Concern (LC).

Frequently asked questions

How do you recognise the Littlescale threadfin?

The Littlescale threadfin has an elongate, eel-like body, is mainly silver-grey and shows a plain pattern.

Where does the Littlescale threadfin live?

The Littlescale threadfin lives in brackish water and is mostly found around sand or mud bottom.

How big does the Littlescale threadfin get?

The Littlescale threadfin grows to a maximum of about 46 cm. On average the species is around 25 cm.

Is the Littlescale threadfin dangerous to humans?

No, the Littlescale threadfin is harmless to humans.

Is the Littlescale threadfin edible?

Yes, the Littlescale threadfin is commonly eaten.

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All data

Identification

Dutch name
Kleinschub-draadvis verified
English name
Littlescale threadfin verified
Scientific name
Polydactylus oligodon
Family
Polynemidae
Other names
Littlescale threadfin; Little-scale threadfin; Smallscale threadfin verified

Appearance

Size class
Large verified
Max length (cm)
46.0 verified
Average length (cm)
25.0 verified
Body shape
Elongated (eel-like) sourced
Dominant colour
Silver / grey inferred
Pattern
Plain sourced
Tail shape
Forked inferred
Mouth position
Inferior (downward) sourced
Lips
Thin sourced
Barbels
No sourced
Dorsal fins
Two separate sourced
Dorsal spines
Yes sourced

Habitat & distribution

Water type
Brackish sourced
Substrate
Sand / mud bottom sourced
Origin
Native verified

Behaviour & biology

Diet
Carnivore sourced
Social behaviour
Schooling sourced
Territorial
No sourced
Activity
Nocturnal sourced
Reproduction
Separate sexes sourced
Sexual dimorphism
No sourced

For anglers

Edibility
Commonly eaten sourced
Fishing method
Brandingvissen met aas sourced
Regulations source
FishBase ↗ inferred

Safety

Danger to humans
Harmless sourced

Status & sources

Sources
FishBase via GBIF (DwC-A), CC-BY-NC 4.0

Same genus Polydactylus

More from the family Polynemidae

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