Fin's Fish Guide
The Bigjaw halfbeak (Nomorhamphus megarrhamphus) is a brackish-water fish of the family Zenarchopteridae that grows up to 12 cm.
Description
The Bigjaw halfbeak is a livebearing freshwater halfbeak (Zenarchopteridae) from slow-flowing fresh water of Sulawesi in Indonesia. The species grows to about 6 cm and has a slender, elongate body with an extended, often curved lower jaw forming a beak; males are often more colourful. As a surface fish it swims just below the waterline and snaps at insects falling on the water; fertilisation is internal and the female bears live young. The fish is harmless to humans.
Frequently asked questions
How do you recognise the Bigjaw halfbeak?
The Bigjaw halfbeak has an elongate, eel-like body and is mainly silver-grey.
Where does the Bigjaw halfbeak live?
The Bigjaw halfbeak lives in brackish water and is mostly found around open water. Asia: Indonesia
How big does the Bigjaw halfbeak get?
The Bigjaw halfbeak grows to a maximum of about 12 cm.
Is the Bigjaw halfbeak dangerous to humans?
No, the Bigjaw halfbeak 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.
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All data
Identification
Appearance
Habitat & distribution
Behaviour & biology
For anglers
Safety
Status & sources
Same genus Nomorhamphus
More from the family Zenarchopteridae
Want the complete picture on the Bigjaw halfbeak?
Point your camera at the fish and Fin names the species in seconds. Free, and the Bigjaw halfbeak is one of 12,519 species in the app.