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Butterfly hillstream loach (Hemimyzon papilio) — Balitoridae

Butterfly hillstream loach

Hemimyzon papilio
Family: Balitoridae

The Butterfly hillstream loach (Hemimyzon papilio) is a freshwater fish of the family Balitoridae that grows up to 6 cm.

Length
5.9 cm
Water
Freshwater
Body shape
Elongated (eel-like)
Substrate
Stone or rock
Danger
Harmless

Description

The Butterfly hillstream loach is a hillstream loach (Balitoridae) from fast-flowing, clear fresh water of southern China. The species grows to about 8 cm and has an elongate, flattened body with broad pectoral and pelvic fins with which it presses to stones against the current, and small barbels. As a bottom-dweller it lives among gravel and rocks of oxygen-rich streams and rasps algae and biofilm and snaps at insect larvae. The fish is harmless to humans.

Frequently asked questions

How do you recognise the Butterfly hillstream loach?

The Butterfly hillstream loach has an elongate, eel-like body, is mainly brown and shows a spots pattern.

Where does the Butterfly hillstream loach live?

The Butterfly hillstream loach lives in fresh water and is mostly found around stony or rocky ground.

How big does the Butterfly hillstream loach get?

The Butterfly hillstream loach grows to a maximum of about 6 cm.

Is the Butterfly hillstream loach dangerous to humans?

No, the Butterfly hillstream loach is harmless to humans.

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All data

Identification

Dutch name
Vlinder-bergbeekloach sourced
English name
Butterfly hillstream loach sourced
Scientific name
Hemimyzon papilio
Family
Balitoridae

Appearance

Size class
Small verified
Max length (cm)
5.9 verified
Body shape
Elongated (eel-like) sourced
Dominant colour
Brown sourced
Pattern
Spots sourced
Tail shape
Forked inferred
Barbels
Yes sourced

Habitat & distribution

Water type
Freshwater sourced
Substrate
Stone or rock sourced
Origin
Native inferred

Behaviour & biology

Territorial
No 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 Hemimyzon

More from the family Balitoridae

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