Fin's Fish Guide
The Australian lamprey (Mordacia mordax) is a fish that lives in both fresh and salt water of the family Mordaciidae that grows up to 50 cm.
Description
The Australian lamprey is a jawless lamprey (Mordaciidae) from southeastern Australia that migrates between fresh and salt water. The species grows to about 50 cm and has an eel-shaped, scaleless body without true jaws; instead it has a round, sucker mouth set with horny teeth. As an adult it lives parasitically and attaches to larger fish at sea; to spawn it ascends rivers. The larvae live for years buried in river sediment. The fish is harmless to humans.
Frequently asked questions
How do you recognise the Australian lamprey?
The Australian lamprey has a snake-like body and is mainly brown.
Where does the Australian lamprey live?
The Australian lamprey lives in both fresh and salt water and is mostly found around sand or mud bottom. Oceania: Australia
How big does the Australian lamprey get?
The Australian lamprey grows to a maximum of about 50 cm. On average the species is around 38 cm.
Is the Australian lamprey dangerous to humans?
No, the Australian lamprey 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 Mordacia
More from the family Mordaciidae
Want the complete picture on the Australian lamprey?
Point your camera at the fish and Fin names the species in seconds. Free, and the Australian lamprey is one of 12,519 species in the app.