Home · Lebiasinidae · Double striped pencilfish
Double striped pencilfish (Nannostomus bifasciatus) — Lebiasinidae

Double striped pencilfish

Nannostomus bifasciatus
Family: Lebiasinidae
LC · Least Concern

The Double striped pencilfish (Nannostomus bifasciatus) is a freshwater fish of the family Lebiasinidae that grows up to 3 cm.

Length
3.4 cm
Water
Freshwater
Diet
Omnivore
Behaviour
Schooling
Activity
Crepuscular
Body shape
Elongated (eel-like)
Substrate
Mixed bottom
Danger
Harmless
Edibility
Not eaten

Description

The two-band pencilfish is a small characin of the family Lebiasinidae from northern South America. The species reaches only about 3.4 cm and has a thin, pencil-shaped body with two dark lengthwise bands on a pale ground. It lives in groups of about a dozen individuals and often occurs upstream in counter-current zones. As an omnivore with a preference for insects it forages mainly at twilight. Like other pencilfishes it lacks an adipose fin. The species is popular in the aquarium hobby and harmless to humans.

Frequently asked questions

How do you recognise the Double striped pencilfish?

The Double striped pencilfish has an elongate, eel-like body, is mainly brown and shows a horizontal stripes pattern.

Where does the Double striped pencilfish live?

The Double striped pencilfish lives in fresh water and is mostly found around mixed bottom.

How big does the Double striped pencilfish get?

The Double striped pencilfish grows to a maximum of about 3 cm.

Is the Double striped pencilfish dangerous to humans?

No, the Double striped pencilfish is harmless to humans.

Is the Double striped pencilfish edible?

The Double striped pencilfish is not usually eaten.

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All data

Identification

Dutch name
Tweeband-penvis sourced
English name
Double striped pencilfish verified
Scientific name
Nannostomus bifasciatus
Family
Lebiasinidae
Other names
Twoband pencilfish; Two-lined pencilfish; Whiteside pencilfish verified

Appearance

Size class
Small verified
Max length (cm)
3.4 verified
Body shape
Elongated (eel-like) sourced
Dominant colour
Brown inferred
Pattern
Horizontal stripes 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
Omnivore sourced
Social behaviour
Schooling inferred
Territorial
No inferred
Activity
Crepuscular inferred
Reproduction
Separate sexes sourced
Sexual dimorphism
Yes 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 Nannostomus

More from the family Lebiasinidae

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