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Boxfish (Lactoria cornuta) — Ostraciidae

Boxfish

Lactoria cornuta
Family: Ostraciidae

The Boxfish (Lactoria cornuta) is a brackish-water fish of the family Ostraciidae that grows up to 46 cm.

Length
46 cm
Water
Brackish
Depth
1.0–100.0 m
Diet
Carnivore
Behaviour
Solitary
Activity
Diurnal
Body shape
Flat / disc-shaped
Substrate
Stone or rock
Danger
Venomous / poisonous
Edibility
Not eaten

Description

The longhorn cowfish is a striking boxfish of the family Ostraciidae widely distributed across the Indo-Pacific. The body is enclosed in an angular, box-like bony armour and bears two long, forward-pointing horns above the eyes and two behind the belly. The species is yellowish with blue spots and reaches about 46 cm. It lives on muddy and sandy bottoms in bays, harbours and estuaries and feeds on bottom animals that it blows out of the sand with a jet of water. When stressed it secretes a toxin; eating it is not advised.

Frequently asked questions

How do you recognise the Boxfish?

The Boxfish has a flattened, disc-shaped body, is mainly yellow-gold and shows a spots pattern.

Where does the Boxfish live?

The Boxfish lives in brackish water and is mostly found around stony or rocky ground.

How big does the Boxfish get?

The Boxfish grows to a maximum of about 46 cm. On average the species is around 40 cm.

Is the Boxfish dangerous to humans?

The Boxfish is venomous — handle spines with care and seek medical help after a sting if needed.

Is the Boxfish edible?

The Boxfish is not usually eaten.

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All data

Identification

Dutch name
Langhoorn-koffervis sourced
English name
Boxfish verified
Scientific name
Lactoria cornuta
Family
Ostraciidae
Other names
Cofferfish; Cowfish; Cow-fish; Long horned cowfish verified

Appearance

Size class
Large verified
Max length (cm)
46.0 verified
Average length (cm)
40.0 verified
Body shape
Flat / disc-shaped sourced
Dominant colour
Yellow / gold inferred
Pattern
Spots inferred
Tail shape
Rounded inferred
Mouth position
Terminal inferred
Lips
Thin inferred
Barbels
No sourced
Dorsal fins
One continuous inferred
Dorsal spines
No sourced

Habitat & distribution

Water type
Brackish sourced
Substrate
Stone or rock sourced
Min depth (m)
1.0 verified
Max depth (m)
100.0 verified
Origin
Native sourced

Behaviour & biology

Diet
Carnivore sourced
Social behaviour
Solitary inferred
Territorial
No inferred
Activity
Diurnal inferred
Reproduction
Separate sexes sourced
Sexual dimorphism
No inferred

For anglers

Edibility
Not eaten sourced
Fishing method
Vissen met natuurlijk aas (vis, garnaal, worm) of kunstaas dicht bij rif- en rotsstructuren. inferred
Regulations source
FishBase ↗ inferred

Safety

Danger to humans
Venomous / poisonous sourced

Status & sources

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

Same genus Lactoria

More from the family Ostraciidae

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