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Bigspine armorhead (Pentaceros decacanthus) — Pentacerotidae

Bigspine armorhead

Pentaceros decacanthus
LC · Least Concern

The Bigspine armorhead (Pentaceros decacanthus) is a saltwater fish of the family Pentacerotidae that grows up to 26 cm.

Length
25.5 cm
Water
Saltwater
Depth
37.0–460.0 m
Diet
Carnivore
Behaviour
Small groups
Body shape
Flat / disc-shaped
Substrate
Sand / mud bottom
Danger
Harmless
Edibility
Rarely eaten

Description

The bigspined boarfish is a deep-water fish of the boarfish family (Pentacerotidae) from the temperate waters around southern Australia and New Zealand. The species grows to about 26 cm and has a deep, laterally compressed, silvery-grey body with a rough, partly bony-armoured head and stout dorsal-fin spines. It lives on the continental shelf and slope, usually deeper than 300 metres. As a bottom searcher it feeds on small invertebrates. Owing to its deep habits the species is not often seen. It is harmless to humans, though the stout spines can prick.

Frequently asked questions

How do you recognise the Bigspine armorhead?

The Bigspine armorhead has a flattened, disc-shaped body, is mainly silver-grey and shows a plain pattern.

Where does the Bigspine armorhead live?

The Bigspine armorhead lives in the sea (marine waters) and is mostly found around sand or mud bottom.

How big does the Bigspine armorhead get?

The Bigspine armorhead grows to a maximum of about 26 cm.

Is the Bigspine armorhead dangerous to humans?

No, the Bigspine armorhead is harmless to humans.

Is the Bigspine armorhead edible?

The Bigspine armorhead is rarely eaten.

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All data

Identification

Dutch name
Stekelige everzwijnvis sourced
English name
Bigspine armorhead verified
Scientific name
Pentaceros decacanthus
Family
Pentacerotidae
Other names
Bigspine boarfish; Bigspined boarfish; Big-spined boarfish verified

Appearance

Size class
Medium verified
Max length (cm)
25.5 verified
Body shape
Flat / disc-shaped sourced
Dominant colour
Silver / grey inferred
Pattern
Plain inferred
Tail shape
Forked inferred
Mouth position
Terminal inferred
Lips
Thin inferred
Barbels
No sourced
Dorsal fins
One continuous inferred
Dorsal spines
Yes sourced

Habitat & distribution

Water type
Saltwater sourced
Substrate
Sand / mud bottom sourced
Min depth (m)
37.0 verified
Max depth (m)
460.0 verified
Origin
Native sourced

Behaviour & biology

Diet
Carnivore sourced
Social behaviour
Small groups inferred
Territorial
No inferred
Reproduction
Separate sexes sourced
Sexual dimorphism
No inferred

For anglers

Edibility
Rarely eaten sourced
Fishing method
Bodemvissen met natuurlijk aas (worm, garnaal of vis) op of vlak boven de bodem. inferred
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 Pentaceros

More from the family Pentacerotidae

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