Fin's Fish Guide
The Olive flathead-gudgeon (Butis humeralis) is a fish that lives in both fresh and salt water of the family Eleotridae that grows up to 14 cm.
Description
The olive flathead-gudgeon is a sleeper goby (Eleotridae) from fresh and brackish water of the Indo-West Pacific. The species grows to about 14 cm and has an elongate, olive-brown body with a flattened head and a large mouth; remarkably, it sometimes swims upside down beneath overhanging structures. As a bottom-oriented ambush hunter it shelters in mangroves, estuaries and slow-flowing rivers and seizes small crustaceans, insects and small fish. The fish is harmless to humans.
Frequently asked questions
How do you recognise the Olive flathead-gudgeon?
The Olive flathead-gudgeon has an elongate, eel-like body and is mainly brown.
Where does the Olive flathead-gudgeon live?
The Olive flathead-gudgeon lives in both fresh and salt water and is mostly found around sand or mud bottom. Asia: Hong Kong, Indonesia, Papua New Guinea, Thailand
How big does the Olive flathead-gudgeon get?
The Olive flathead-gudgeon grows to a maximum of about 14 cm.
Is the Olive flathead-gudgeon dangerous to humans?
No, the Olive flathead-gudgeon 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.
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 Olive flathead-gudgeon?
Point your camera at the fish and Fin names the species in seconds. Free, and the Olive flathead-gudgeon is one of 12,519 species in the app.