Home · Characidae · Roeboides affinis
Roeboides affinis — Characidae

Roeboides affinis

Roeboides affinis
Family: Characidae
LC · Least Concern

The Roeboides affinis is a freshwater fish of the family Characidae that grows up to 11 cm.

Length
11 cm
Water
Freshwater
Diet
Carnivore
Behaviour
Small groups
Activity
Diurnal
Body shape
Elongated (eel-like)
Substrate
Mixed bottom
Danger
Harmless
Edibility
Not eaten

Description

Roeboides affinis is a characin of the family Characidae from Central America and northern South America, though the precise range is uncertain. The species reaches about 11 cm and has a semi-transparent, silvery body with a dark shoulder spot. Characteristic are the teeth that partly protrude outside the mouth. With these it is specialised in lepidophagy: it knocks scales off other fishes with a thrust of the head and eats them, alongside small invertebrates. It often holds itself at an angle in the water. Owing to its small size the species has no culinary value.

Frequently asked questions

How do you recognise the Roeboides affinis?

The Roeboides affinis has an elongate, eel-like body, is mainly silver-grey and shows a plain pattern.

Where does the Roeboides affinis live?

The Roeboides affinis lives in fresh water and is mostly found around mixed bottom.

How big does the Roeboides affinis get?

The Roeboides affinis grows to a maximum of about 11 cm. On average the species is around 7 cm.

Is the Roeboides affinis dangerous to humans?

No, the Roeboides affinis is harmless to humans.

Is the Roeboides affinis edible?

The Roeboides affinis is not usually eaten.

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All data

Identification

Dutch name
Glaszalmpje sourced
English name
Roeboides affinis sourced
Scientific name
Roeboides affinis
Family
Characidae

Appearance

Size class
Small verified
Max length (cm)
11.0 verified
Average length (cm)
7.0 verified
Body shape
Elongated (eel-like) sourced
Dominant colour
Silver / grey inferred
Pattern
Plain inferred
Tail shape
Forked inferred
Mouth position
Superior (upward) inferred
Lips
Thin inferred
Barbels
No sourced
Dorsal fins
One continuous inferred
Dorsal spines
No sourced

Habitat & distribution

Water type
Freshwater sourced
Substrate
Mixed bottom sourced
Origin
Native sourced

Behaviour & biology

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

For anglers

Edibility
Not eaten sourced
Fishing method
Geen doelsoort voor de hengelsport; hooguit incidentele vangst of bruikbaar als aasvisje. 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 Roeboides

More from the family Characidae

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