The Lizard goby (Rhinogobius flumineus) is a freshwater fish of the family Gobiidae that grows up to 7 cm.
Endemic to Japan; middle and upper reaches of rivers with flowing water.
Description
The lizard goby is a small freshwater goby of the family Gobiidae, endemic to Japan. The species grows to about 7 cm and has a stocky, brownish body with a fine pattern. Adults inhabit the middle and upper reaches of rivers and stay mainly in open, shallow areas with flowing water over gravel and stones. With their fused pelvic fins, which form a sucker, they cling to the bottom against the current. As a small bottom hunter it feeds on insect larvae and other small invertebrates. The male guards the eggs laid on the underside of stones. The species is harmless to humans.
Frequently asked questions
How do you recognise the Lizard goby?
The Lizard goby has a torpedo-shaped body, is mainly brown and shows a marbled pattern. Fused pelvic fins acting as a sucker to attach to stones against the current.
Where does the Lizard goby live?
The Lizard goby lives in fresh water and is mostly found around mixed bottom. Endemic to Japan; middle and upper reaches of rivers with flowing water.
How big does the Lizard goby get?
The Lizard goby grows to a maximum of about 7 cm.
Is the Lizard goby dangerous to humans?
No, the Lizard goby is harmless to humans. None required: this species is harmless to humans.
Is the Lizard goby edible?
The Lizard goby is not usually eaten.
More photos

Want the complete picture on the Lizard goby?
Point your camera at the fish and Fin names the species in seconds. Free, and the Lizard goby is one of 12,519 species in the app.
All data
Identification
Appearance
Habitat & distribution
Behaviour & biology
For anglers
Safety
Status & sources
Same genus Rhinogobius
More from the family Gobiidae

Want the complete picture on the Lizard goby?
Point your camera at the fish and Fin names the species in seconds. Free, and the Lizard goby is one of 12,519 species in the app.