Fin's Fish Guide
The Crested gudgeon (Butis koilomatodon) is a fish that lives in both fresh and salt water of the family Eleotridae that grows up to 11 cm.
Description
The mud sleeper is a sleeper goby (Eleotridae) from the Indo-West Pacific. The species has a stocky, dark-mottled body with a large head and can quickly adapt its colour to the surroundings. It inhabits rivers, estuaries and mangrove creeks, often in brackish tidal water on mud bottoms. As a slow ambush hunter it takes crustaceans and small fishes. The species is harmless to humans.
Frequently asked questions
How do you recognise the Crested gudgeon?
The Crested gudgeon has an elongate, eel-like body, is mainly brown and shows a marbled pattern. Adapts its colour quickly; slow ambush predator of brackish estuaries and mangrove creeks.
Where does the Crested gudgeon live?
The Crested gudgeon lives in both fresh and salt water and is mostly found around sand or mud bottom. Indo-West Pacific; rivers, estuaries and mangrove creeks.
How big does the Crested gudgeon get?
The Crested gudgeon grows to a maximum of about 11 cm.
Is the Crested gudgeon dangerous to humans?
No, the Crested gudgeon is harmless to humans. None required: this species is harmless to humans.
Is the Crested gudgeon edible?
The Crested gudgeon is rarely eaten.
More photos
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All data
Identification
Appearance
Habitat & distribution
Behaviour & biology
For anglers
Safety
Status & sources
Same genus Butis
More from the family Eleotridae
Want the complete picture on the Crested gudgeon?
Point your camera at the fish and Fin names the species in seconds. Free, and the Crested gudgeon is one of 12,519 species in the app.
Or scan with your phone