Home · Ostraciidae · Black-blotched turretfish
Black-blotched turretfish (Tetrosomus gibbosus) — Ostraciidae

Black-blotched turretfish

Tetrosomus gibbosus
Family: Ostraciidae
LC · Least Concern

The Black-blotched turretfish (Tetrosomus gibbosus) is a saltwater fish of the family Ostraciidae that grows up to 30 cm.

Length
30 cm
Water
Saltwater
Depth
37.0–110.0 m
Diet
Carnivore
Behaviour
Solitary
Body shape
Flat / disc-shaped
Substrate
Stone or rock
Danger
Venomous / poisonous
Edibility
Not eaten

Description

The humpback turretfish is a boxfish (Ostraciidae) from the Indo-West Pacific. The species has a triangular body fused by bony plates into a rigid armour, with a high, keeled back bearing spiny points. It inhabits shallow coastal waters with soft, muddy bottoms and seagrass beds, usually at about 2 to 110 metres depth. It feeds on small bottom invertebrates. When stressed it secretes through the skin a toxin (ostracitoxin) that is poisonous to other animals.

Frequently asked questions

How do you recognise the Black-blotched turretfish?

The Black-blotched turretfish has a flattened, disc-shaped body, is mainly yellow-gold and shows a plain pattern.

Where does the Black-blotched turretfish live?

The Black-blotched turretfish lives in the sea (marine waters) and is mostly found around stony or rocky ground.

How big does the Black-blotched turretfish get?

The Black-blotched turretfish grows to a maximum of about 30 cm. On average the species is around 20 cm.

Is the Black-blotched turretfish dangerous to humans?

The Black-blotched turretfish is venomous — handle spines with care and seek medical help after a sting if needed.

Is the Black-blotched turretfish edible?

The Black-blotched turretfish is not usually eaten.

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All data

Identification

Dutch name
Bult-koffervis sourced
English name
Black-blotched turretfish verified
Scientific name
Tetrosomus gibbosus
Family
Ostraciidae
Other names
Black-blotched turretfish; Black-botched turret-fish; Boxfish; Cofferfish; Cowfish verified

Appearance

Size class
Medium verified
Max length (cm)
30.0 verified
Average length (cm)
20.0 verified
Body shape
Flat / disc-shaped sourced
Dominant colour
Yellow / gold inferred
Pattern
Plain inferred
Tail shape
Rounded inferred
Mouth position
Terminal inferred
Lips
Thick / fleshy inferred
Barbels
No sourced
Dorsal fins
One continuous inferred
Dorsal spines
No sourced

Habitat & distribution

Water type
Saltwater sourced
Substrate
Stone or rock sourced
Min depth (m)
37.0 verified
Max depth (m)
110.0 verified
Origin
Native sourced

Behaviour & biology

Diet
Carnivore sourced
Social behaviour
Solitary inferred
Territorial
No 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 Tetrosomus

More from the family Ostraciidae

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