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Onesided livebearer (Jenynsia multidentata) — Anablepidae

Onesided livebearer

Jenynsia multidentata
Family: Anablepidae

The Onesided livebearer (Jenynsia multidentata) is a fish of the family Anablepidae that grows up to 6 cm.

Length
6 cm
Substrate
Mixed bottom
Danger
Harmless

Description

The onesided livebearer is a livebearing toothcarp (Anablepidae) from fresh and brackish water of the La Plata system and coastal waters of southern South America. The species grows to about 6 cm and has a slender, silvery body with fine markings. Remarkably the mating is one-sided: the male's organ and the female's opening each face left or right, so only matching animals can pair. The female bears live young. It eats small invertebrates and algae. The fish is harmless to humans.

Frequently asked questions

How do you recognise the Onesided livebearer?

The Onesided livebearer is mainly silver-grey.

Where does the Onesided livebearer live?

The Onesided livebearer is mostly found around mixed bottom.

How big does the Onesided livebearer get?

The Onesided livebearer grows to a maximum of about 6 cm.

Is the Onesided livebearer dangerous to humans?

No, the Onesided livebearer is harmless to humans.

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All data

Identification

Dutch name
Eenzijdige levendbarende sourced
English name
Onesided livebearer sourced
Scientific name
Jenynsia multidentata
Family
Anablepidae

Appearance

Max length (cm)
6 sourced
Dominant colour
Silver / grey sourced
Tail shape
Rounded inferred

Habitat & distribution

Substrate
Mixed bottom sourced
Origin
Native inferred

Behaviour & biology

Territorial
No inferred
Reproduction
Separate sexes inferred
Sexual dimorphism
Yes inferred

For anglers

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 Jenynsia

More from the family Anablepidae

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