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Eightbarbel loach (Lefua echigonia) — Nemacheilidae

Eightbarbel loach

Lefua echigonia
Family: Nemacheilidae
LC · Least Concern

The Eightbarbel loach (Lefua echigonia) is a freshwater fish of the family Nemacheilidae that grows up to 7 cm.

Length
7.1 cm
Water
Freshwater
Diet
Carnivore
Behaviour
Small groups
Activity
Nocturnal
Body shape
Elongated (eel-like)
Substrate
Sand / mud bottom
Danger
Harmless
Range
Japan; quiet shallow ditches, ponds and vegetated streams.
Edibility
Not eaten

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Description

The eightbarbel loach is a stone loach (Nemacheilidae) from Japan. The species is small and has an elongate, brownish body with a dark lengthwise stripe and, characteristically, eight barbels around the mouth. It inhabits calm, shallow waters such as paddy-field ditches, ponds, swamps and slow-flowing vegetated streams. On the bottom it searches with its barbels for small invertebrates, insect larvae and detritus. Owing to loss of this habitat it is under pressure in Japan. The species is harmless to humans.

Frequently asked questions

How do you recognise the Eightbarbel loach?

The Eightbarbel loach has an elongate, eel-like body, is mainly brown and shows a horizontal stripes pattern. Eight barbels around the mouth; inhabits rice field ditches and vegetated streams in Japan.

Where does the Eightbarbel loach live?

The Eightbarbel loach lives in fresh water and is mostly found around sand or mud bottom. Japan; quiet shallow ditches, ponds and vegetated streams.

How big does the Eightbarbel loach get?

The Eightbarbel loach grows to a maximum of about 7 cm.

Is the Eightbarbel loach dangerous to humans?

No, the Eightbarbel loach is harmless to humans. None required: this species is harmless to humans.

Is the Eightbarbel loach edible?

The Eightbarbel loach is not usually eaten.

More photos

Eightbarbel loach (Lefua echigonia) — Nemacheilidae — 2
iNaturalist ((c) r-fujii, some rights reserved (CC BY-NC))
Eightbarbel loach (Lefua echigonia) — Nemacheilidae — 3
r-fujii (CC BY-NC 4.0) via GBIF — iNaturalist
Eightbarbel loach (Lefua echigonia) — Nemacheilidae — 4
Wikimedia Commons — Σ64 (CC BY 4.0)
Eightbarbel loach (Lefua echigonia) — Nemacheilidae — 5
Wikimedia Commons — Seotaro (CC BY-SA 3.0)
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All data

Identification

English name
Eightbarbel loach sourced
Scientific name
Lefua echigonia
Family
Nemacheilidae

Appearance

Size class
Small verified
Max length (cm)
7.1 verified
Body shape
Elongated (eel-like) sourced
Dominant colour
Brown inferred
Pattern
Horizontal stripes inferred
Tail shape
Rounded inferred
Mouth position
Inferior (downward) inferred
Lips
Thick / fleshy inferred
Barbels
Yes sourced
Dorsal fins
One continuous inferred
Dorsal spines
No sourced

Habitat & distribution

Water type
Freshwater sourced
Substrate
Sand / mud bottom sourced
Natural range
Japan; quiet shallow ditches, ponds and vegetated streams. inferred
Origin
Native sourced

Behaviour & biology

Diet
Carnivore sourced
Diet (detail)
Small invertebrates, insect larvae and detritus sourced
Social behaviour
Small groups inferred
Territorial
No inferred
Activity
Nocturnal inferred
Reproduction
Separate sexes sourced
Sexual dimorphism
No inferred
Seasonality
Present year-round in its habitat; no pronounced seasonality known. inferred
Special features
Eight barbels around the mouth; inhabits rice field ditches and vegetated streams in Japan. sourced

For anglers

Edibility
Not eaten sourced
Fishing method
Not a target species for angling; at most an incidental catch or usable as baitfish. inferred
Regulations source
FishBase ↗ inferred

Safety

Danger to humans
Harmless sourced
First aid
None required: this species is harmless to humans. sourced

Status & sources

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

Same genus Lefua

More from the family Nemacheilidae

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