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Eigenmann's needlefish (Potamorrhaphis eigenmanni) — Belonidae

Eigenmann's needlefish

Potamorrhaphis eigenmanni
Family: Belonidae
LC · Least Concern

The Eigenmann's needlefish (Potamorrhaphis eigenmanni) is a freshwater fish of the family Belonidae that grows up to 23 cm.

Length
22.8 cm
Water
Freshwater
Depth
0.0–? m
Diet
Carnivore
Behaviour
Schooling
Activity
Diurnal
Body shape
Elongated (eel-like)
Substrate
Open water
Danger
Harmless
Range
Amazon basin
Edibility
Not eaten

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Description

Eigenmann's needlefish is a freshwater needlefish from the Amazon basin in South America. The species grows to about 23 cm and has a very slender, elongate, greenish body with long, thin, finely toothed jaws. It swims just below the surface of calm streams and flooded forests and darts at lightning speed at insects and small fish. The fish is harmless to humans and is assessed as Least Concern (LC) by the IUCN.

Frequently asked questions

How do you recognise the Eigenmann's needlefish?

The Eigenmann's needlefish has an elongate, eel-like body, is mainly green and shows a plain pattern. Long thin toothed jaws; surface hunter in flooded forests

Where does the Eigenmann's needlefish live?

The Eigenmann's needlefish lives in fresh water and is mostly found around open water. Amazon basin

How big does the Eigenmann's needlefish get?

The Eigenmann's needlefish grows to a maximum of about 23 cm.

Is the Eigenmann's needlefish dangerous to humans?

No, the Eigenmann's needlefish is harmless to humans. This species is harmless to humans. No specific first aid is needed. Still handle the fish with care: mind the fin rays and the sharp edges of the gill cover, and rinse any scratch with clean water and cover it. For a dirty or deep wound check tetanus status.

Is the Eigenmann's needlefish edible?

The Eigenmann's needlefish is not usually eaten.

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All data

Identification

English name
Eigenmann's needlefish verified
Scientific name
Potamorrhaphis eigenmanni
Family
Belonidae

Appearance

Size class
Medium verified
Max length (cm)
22.8 verified
Body shape
Elongated (eel-like) sourced
Dominant colour
Green inferred
Pattern
Plain sourced
Tail shape
Rounded inferred
Mouth position
Superior (upward) sourced
Lips
Thin sourced
Barbels
No sourced
Dorsal fins
One continuous sourced
Dorsal spines
No sourced

Habitat & distribution

Water type
Freshwater sourced
Substrate
Open water sourced
Min depth (m)
0.0 verified
Natural range
Amazon basin verified
Origin
Native verified

Behaviour & biology

Diet
Carnivore sourced
Diet (detail)
Insects and small fishes inferred
Social behaviour
Schooling sourced
Territorial
No sourced
Activity
Diurnal sourced
Reproduction
Separate sexes sourced
Sexual dimorphism
No sourced
Seasonality
Surface freshwater needlefish; present year-round. sourced
Special features
Long thin toothed jaws; surface hunter in flooded forests sourced

For anglers

Edibility
Not eaten sourced
Fishing method
Angling with lures or (dead/live) baitfish by trolling, casting or drift fishing in open water. inferred
Regulations source
FishBase ↗ inferred

Safety

Danger to humans
Harmless sourced
First aid
This species is harmless to humans. No specific first aid is needed. Still handle the fish with care: mind the fin rays and the sharp edges of the gill cover, and rinse any scratch with clean water and cover it. For a dirty or deep wound check tetanus status. verified

Status & sources

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

Same genus Potamorrhaphis

More from the family Belonidae

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