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Threadtail filefish (Arotrolepis filicauda) — Monacanthidae

Threadtail filefish

Arotrolepis filicauda
Family: Monacanthidae

The Threadtail filefish (Arotrolepis filicauda) is a saltwater fish of the family Monacanthidae that grows up to 22 cm.

Length
22 cm
Water
Saltwater
Body shape
Flat / disc-shaped
Substrate
Sand / mud bottom
Danger
Harmless
Range
Oceania: Australia

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Description

The threadtail filefish is a filefish (Monacanthidae) from coastal waters of the Indo-West Pacific. The species grows to about 22 cm and has a laterally compressed, brownish body with a rough, file-like skin, an erectile spine above the head and, in adult males, thread-like elongate tail rays. As a bottom-oriented fish it shelters among weed and coral and snaps at small invertebrates and algae. The fish is harmless to humans.

Frequently asked questions

How do you recognise the Threadtail filefish?

The Threadtail filefish has a flattened, disc-shaped body and is mainly brown.

Where does the Threadtail filefish live?

The Threadtail filefish lives in the sea (marine waters) and is mostly found around sand or mud bottom. Oceania: Australia

How big does the Threadtail filefish get?

The Threadtail filefish grows to a maximum of about 22 cm.

Is the Threadtail filefish dangerous to humans?

No, the Threadtail filefish is harmless to humans. This species is harmless to humans. No specific first aid is needed. Still handle the fish with care: mind the fin rays and the sharp edges of the gill cover, and rinse any scratch with clean water and cover it. For a dirty or deep wound check tetanus status.

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All data

Identification

English name
Threadtail filefish sourced
Scientific name
Arotrolepis filicauda
Family
Monacanthidae
Other names
Threadfin leatherjacket verified

Appearance

Size class
Medium verified
Max length (cm)
22.0 verified
Body shape
Flat / disc-shaped sourced
Dominant colour
Brown sourced
Tail shape
Rounded inferred

Habitat & distribution

Water type
Saltwater sourced
Substrate
Sand / mud bottom sourced
Natural range
Oceania: Australia sourced
Origin
Native inferred

Behaviour & biology

Territorial
No inferred
Reproduction
Separate sexes inferred
Sexual dimorphism
No inferred
Seasonality
Present year-round in its habitat; no pronounced seasonality known. inferred

For anglers

Fishing method
Bottom fishing with natural bait (worm, shrimp or fish) on or just above the seabed. inferred
Regulations source
FishBase ↗ inferred

Safety

Danger to humans
Harmless verified
First aid
This species is harmless to humans. No specific first aid is needed. Still handle the fish with care: mind the fin rays and the sharp edges of the gill cover, and rinse any scratch with clean water and cover it. For a dirty or deep wound check tetanus status. verified

Status & sources

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

More from the family Monacanthidae

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