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Glass headstander (Roeboides descalvadensis) — Characidae

Glass headstander

Roeboides descalvadensis
Family: Characidae

The Glass headstander (Roeboides descalvadensis) is a freshwater fish of the family Characidae that grows up to 9 cm.

Length
8.9 cm
Water
Freshwater
Diet
Omnivore
Activity
Diurnal
Body shape
Torpedo-shaped
Substrate
Open water
Danger
Harmless

Description

The glass headstander is a characin (Characidae) from fresh water of the Paraguay and Pantanal region in South America. The species grows to about 10 cm and has a translucent, laterally compressed, silvery body with a dark shoulder and tail spot and outward-pointing teeth around the mouth. Remarkably it scrapes scales and skin mucus from other fish and also eats insects and small invertebrates. It often swims slightly head-down. The fish is harmless to humans.

Frequently asked questions

How do you recognise the Glass headstander?

The Glass headstander has a torpedo-shaped body, is mainly silver-grey and shows a spots pattern.

Where does the Glass headstander live?

The Glass headstander lives in fresh water and is mostly found around open water.

How big does the Glass headstander get?

The Glass headstander grows to a maximum of about 9 cm.

Is the Glass headstander dangerous to humans?

No, the Glass headstander is harmless to humans.

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All data

Identification

Dutch name
Glas-kopstaander sourced
English name
Glass headstander sourced
Scientific name
Roeboides descalvadensis
Family
Characidae
Other names
Parana scale-eating characin sourced

Appearance

Size class
Small verified
Max length (cm)
8.9 verified
Body shape
Torpedo-shaped sourced
Dominant colour
Silver / grey sourced
Pattern
Spots sourced
Tail shape
Forked inferred

Habitat & distribution

Water type
Freshwater sourced
Substrate
Open water sourced
Origin
Native inferred

Behaviour & biology

Diet
Omnivore inferred
Territorial
No inferred
Activity
Diurnal inferred
Reproduction
Separate sexes inferred
Sexual dimorphism
No inferred

For anglers

Fishing method
Klein van stuk en nauwelijks een hengelsportdoel; wordt vooral incidenteel of als aasvis gevangen. inferred
Regulations source
FishBase ↗ inferred

Safety

Danger to humans
Harmless verified

Status & sources

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

Same genus Roeboides

More from the family Characidae

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