Fin's Fish Guide
The Giant jawfish (Opistognathus rhomaleus) is a saltwater fish of the family Opistognathidae that grows up to 51 cm.
Description
The giant jawfish is a large jawfish from the eastern Pacific, off the Gulf of California. The species grows to about 51 cm and has an elongate body with a large head and very wide mouth. As a bottom-dweller it digs and guards a vertical burrow in sand and gravel bottoms, into which it vanishes in a flash when threatened. The male broods the eggs in its mouth. From its burrow it snaps at passing small fish and crustaceans. The fish is harmless to humans. The IUCN has not evaluated the species.
Frequently asked questions
How do you recognise the Giant jawfish?
The Giant jawfish has an elongate, eel-like body, is mainly brown and shows a marbled pattern. Wide mouth and a vertical burrow; the male broods the eggs in his mouth
Where does the Giant jawfish live?
The Giant jawfish lives in the sea (marine waters) and is mostly found around sand or mud bottom. Eastern Pacific
How big does the Giant jawfish get?
The Giant jawfish grows to a maximum of about 51 cm.
Is the Giant jawfish dangerous to humans?
No, the Giant jawfish 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.
Is the Giant jawfish edible?
The Giant jawfish is not usually eaten.
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All data
Identification
Appearance
Habitat & distribution
Behaviour & biology
For anglers
Safety
Status & sources
Same genus Opistognathus
More from the family Opistognathidae
Want the complete picture on the Giant jawfish?
Point your camera at the fish and Fin names the species in seconds. Free, and the Giant jawfish is one of 12,519 species in the app.