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Blackspotted dwarf loach (Yunnanilus nigromaculatus) — Nemacheilidae

Blackspotted dwarf loach

Yunnanilus nigromaculatus
Family: Nemacheilidae
EN · Endangered

The Blackspotted dwarf loach (Yunnanilus nigromaculatus) is a freshwater fish of the family Nemacheilidae that grows up to 8 cm.

Length
7.7 cm
Water
Freshwater
Depth
0–1 m
Diet
Carnivore
Behaviour
Small groups
Activity
Diurnal
Body shape
Elongated (eel-like)
Substrate
Sand / mud bottom
Danger
Harmless
Range
China
Edibility
Not eaten

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Description

The blackspotted dwarf loach is a small stone loach endemic to Lake Dianchi in Yunnan Province, China. It grows to about 7.7 cm and has an elongate body with an upturned, terminal mouth. Distinctive features are the absence of the lateral line and head pores, and a scaled area in front of the dorsal fin. The fish lives in shallow, clear water among aquatic plants, usually less than one metre deep, and avoids the lake's inflows and outflows. It feeds mainly on small shrimps. Because of water pollution, habitat loss and introduced fish species, it is listed as Endangered (EN) on the IUCN Red List.

Frequently asked questions

How do you recognise the Blackspotted dwarf loach?

The Blackspotted dwarf loach has an elongate, eel-like body, is mainly brown and shows a spots pattern. No lateral line or head pores; scaled area in front of the dorsal fin

Where does the Blackspotted dwarf loach live?

The Blackspotted dwarf loach lives in fresh water and is mostly found around sand or mud bottom. China

How big does the Blackspotted dwarf loach get?

The Blackspotted dwarf loach grows to a maximum of about 8 cm.

Is the Blackspotted dwarf loach dangerous to humans?

No, the Blackspotted dwarf loach 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 Blackspotted dwarf loach edible?

The Blackspotted dwarf loach is not usually eaten.

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All data

Identification

English name
Blackspotted dwarf loach verified
Scientific name
Yunnanilus nigromaculatus
Family
Nemacheilidae

Appearance

Size class
Small verified
Max length (cm)
7.7 verified
Body shape
Elongated (eel-like) sourced
Dominant colour
Brown inferred
Pattern
Spots inferred
Tail shape
Straight inferred
Mouth position
Superior (upward) sourced
Lips
Thin sourced
Barbels
Yes sourced
Dorsal fins
One continuous sourced
Dorsal spines
No sourced

Habitat & distribution

Water type
Freshwater sourced
Substrate
Sand / mud bottom sourced
Min depth (m)
0 sourced
Max depth (m)
1 sourced
Natural range
China verified
Origin
Native verified

Behaviour & biology

Diet
Carnivore sourced
Diet (detail)
Small shrimps and small invertebrates sourced
Social behaviour
Small groups inferred
Territorial
No sourced
Activity
Diurnal inferred
Reproduction
Separate sexes sourced
Sexual dimorphism
No inferred
Seasonality
Resident fish in shallow lake water; present year-round. sourced
Special features
No lateral line or head pores; scaled area in front of the dorsal fin 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
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

More from the family Nemacheilidae

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