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Spotted hoplo (Hoplosternum punctatum) — Callichthyidae

Spotted hoplo

Hoplosternum punctatum

The Spotted hoplo (Hoplosternum punctatum) is a freshwater fish of the family Callichthyidae that grows up to 8 cm.

Length
7.7 cm
Water
Freshwater
Diet
Omnivore
Activity
Nocturnal
Body shape
Torpedo-shaped
Substrate
Sand / mud bottom
Danger
Venomous / poisonous
Range
South America: Colombia, Panama

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Description

The spotted hoplo is an armoured catfish (Callichthyidae) from slow-flowing and still fresh water of Panama and northern South America. The species grows to about 15 cm and has a stocky body with two rows of overlapping bony plates, barbels and an inferior mouth. In oxygen-poor water it can gulp air at the surface. As a nocturnal bottom-dweller it roots through mud searching for insect larvae, worms and detritus. The stout pectoral and dorsal spines are mildly venomous and can give a painful prick when handled.

Frequently asked questions

How do you recognise the Spotted hoplo?

The Spotted hoplo has a torpedo-shaped body, is mainly brown and shows a spots pattern. Bears venomous spines or tissue; handle with great care.

Where does the Spotted hoplo live?

The Spotted hoplo lives in fresh water and is mostly found around sand or mud bottom. South America: Colombia, Panama

How big does the Spotted hoplo get?

The Spotted hoplo grows to a maximum of about 8 cm.

Is the Spotted hoplo dangerous to humans?

The Spotted hoplo is venomous — handle spines with care and seek medical help after a sting if needed. For a sting from a fin spine: rinse the wound, remove any visible spine fragments and immerse the part for 30-90 minutes in water as hot as can be tolerated (about 45 C) to break down the venom. The pain can be severe. For marked swelling, a retained spine or signs of infection seek medical care and check tetanus status.

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All data

Identification

English name
Spotted hoplo sourced
Scientific name
Hoplosternum punctatum
Family
Callichthyidae

Appearance

Size class
Small verified
Max length (cm)
7.7 verified
Body shape
Torpedo-shaped sourced
Dominant colour
Brown sourced
Pattern
Spots sourced
Tail shape
Forked inferred
Barbels
Yes sourced
Dorsal spines
Yes sourced

Habitat & distribution

Water type
Freshwater sourced
Substrate
Sand / mud bottom sourced
Natural range
South America: Colombia, Panama sourced
Origin
Native inferred

Behaviour & biology

Diet
Omnivore inferred
Diet (detail)
Invertebrates, algae and detritus inferred
Territorial
No inferred
Activity
Nocturnal sourced
Reproduction
Separate sexes inferred
Sexual dimorphism
No inferred
Seasonality
Present year-round in its habitat; no pronounced seasonality known. inferred
Special features
Bears venomous spines or tissue; handle with great care. inferred

For anglers

Fishing method
Small in size and barely an angling target; mostly caught incidentally or as baitfish. inferred
Regulations source
FishBase ↗ inferred

Safety

Danger to humans
Venomous / poisonous verified
First aid
For a sting from a fin spine: rinse the wound, remove any visible spine fragments and immerse the part for 30-90 minutes in water as hot as can be tolerated (about 45 C) to break down the venom. The pain can be severe. For marked swelling, a retained spine or signs of infection seek medical care and check tetanus status. sourced

Status & sources

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

Same genus Hoplosternum

More from the family Callichthyidae

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