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Lesser-spotted leatherjacket (Thamnaconus hypargyreus) — Monacanthidae

Lesser-spotted leatherjacket

Thamnaconus hypargyreus
Family: Monacanthidae

The Lesser-spotted leatherjacket (Thamnaconus hypargyreus) is a saltwater fish of the family Monacanthidae that grows up to 18 cm.

Length
17.8 cm
Water
Saltwater
Body shape
Flat / disc-shaped
Substrate
Stone or rock
Danger
Harmless
Range
Asia: Australia, Taiwan/Ch Taipei, Hong Kong, Japan, Korea (South)

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Description

The Lesser-spotted leatherjacket is a filefish (Monacanthidae) from coral-reef, rocky and seagrass water around Australia and the Indo-West Pacific. The species grows to about 25 cm and has a deep, strongly laterally compressed body with a rough, file-like skin, a small mouth with strong teeth and an erectable first dorsal spine. As a slow swimmer it nibbles at algae, seaweeds, sponges and small invertebrates. The fish is harmless to humans.

Frequently asked questions

How do you recognise the Lesser-spotted leatherjacket?

The Lesser-spotted leatherjacket has a flattened, disc-shaped body and is mainly brown.

Where does the Lesser-spotted leatherjacket live?

The Lesser-spotted leatherjacket lives in the sea (marine waters) and is mostly found around stony or rocky ground. Asia: Australia, Taiwan/Ch Taipei, Hong Kong, Japan, Korea (South)

How big does the Lesser-spotted leatherjacket get?

The Lesser-spotted leatherjacket grows to a maximum of about 18 cm.

Is the Lesser-spotted leatherjacket dangerous to humans?

No, the Lesser-spotted leatherjacket 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.

More photos

Lesser-spotted leatherjacket (Thamnaconus hypargyreus) — Monacanthidae — 2
Williams, Jeffrey T. (CC0 1.0) via GBIF — USNM
Lesser-spotted leatherjacket (Thamnaconus hypargyreus) — Monacanthidae — 3
iNaturalist ((c) 李博恒, some rights reserved (CC BY-NC))
Lesser-spotted leatherjacket (Thamnaconus hypargyreus) — Monacanthidae — 4
Chi Phan (CC BY 4.0) via GBIF — AM
Lesser-spotted leatherjacket (Thamnaconus hypargyreus) — Monacanthidae — 5
Chi Phan (CC BY 4.0) via GBIF — AM

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All data

Identification

English name
Lesser-spotted leatherjacket sourced
Scientific name
Thamnaconus hypargyreus
Family
Monacanthidae
Other names
Lesser-spotted leatherjacket verified

Appearance

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

Habitat & distribution

Water type
Saltwater sourced
Substrate
Stone or rock sourced
Natural range
Asia: Australia, Taiwan/Ch Taipei, Hong Kong, Japan, Korea (South) sourced
Origin
Native

Behaviour & biology

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

For anglers

Fishing method
Fishing with natural bait (fish, shrimp, worm) or lures close to reef and rock structures.
Regulations source

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

Same genus Thamnaconus

More from the family Monacanthidae

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