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Barecheek sleeper (Butis gymnopomus) — Eleotridae

Barecheek sleeper

Butis gymnopomus
Family: Eleotridae

The Barecheek sleeper (Butis gymnopomus) is a brackish-water fish of the family Eleotridae that grows up to 12 cm.

Length
11.5 cm
Water
Brackish
Diet
Carnivore
Body shape
Elongated (eel-like)
Substrate
Sand / mud bottom
Danger
Harmless
Range
Asia: Solomon Is., Taiwan/Ch Taipei, India, Indonesia, Malaysia, Philippines and others

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Description

The barecheek sleeper is a sleeper goby (Eleotridae) from fresh and brackish water of lower river reaches and mangroves in the Indo-West Pacific. The species grows to about 10 cm and has an elongate, dark-brown body with a flattened head, a large mouth and separate pelvic fins. As a bottom-oriented ambush hunter it shelters among roots and leaf litter, often head-up, and seizes small fish, crustaceans and insects. The fish is harmless to humans.

Frequently asked questions

How do you recognise the Barecheek sleeper?

The Barecheek sleeper has an elongate, eel-like body and is mainly brown.

Where does the Barecheek sleeper live?

The Barecheek sleeper lives in brackish water and is mostly found around sand or mud bottom. Asia: Solomon Is., Taiwan/Ch Taipei, India, Indonesia, Malaysia, Philippines and others

How big does the Barecheek sleeper get?

The Barecheek sleeper grows to a maximum of about 12 cm.

Is the Barecheek sleeper dangerous to humans?

No, the Barecheek sleeper 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.

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All data

Identification

English name
Barecheek sleeper sourced
Scientific name
Butis gymnopomus
Family
Eleotridae
Other names
Goby sourced

Appearance

Size class
Small verified
Max length (cm)
11.5 verified
Body shape
Elongated (eel-like) sourced
Dominant colour
Brown sourced
Tail shape
Rounded inferred

Habitat & distribution

Water type
Brackish sourced
Substrate
Sand / mud bottom sourced
Natural range
Asia: Solomon Is., Taiwan/Ch Taipei, India, Indonesia, Malaysia, Philippines and others sourced
Origin
Native inferred

Behaviour & biology

Diet
Carnivore inferred
Diet (detail)
Small fishes, crustaceans and invertebrates inferred
Territorial
No inferred
Reproduction
Separate sexes inferred
Sexual dimorphism
No inferred
Seasonality
Present year-round in its habitat; no pronounced seasonality known. inferred

For anglers

Fishing method
Small in size and barely an angling target; mostly caught incidentally or as baitfish. inferred
Regulations source
FishBase ↗ inferred

Safety

Danger to humans
Harmless verified
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 Butis

More from the family Eleotridae

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