Fin's Fish Guide
The Halfline hemiodus (Hemiodus semitaeniatus) is a freshwater fish of the family Hemiodontidae that grows up to 20 cm.
Description
The halftooth is a characin relative (Hemiodontidae) from South America. The species has a slender, streamlined, silvery body with a dark lengthwise stripe that continues into the lower tail lobe. It lives in schools in rivers and floodplains and is a fast swimmer. As an omnivore it feeds on algae, detritus, plant matter and small zooplankton. It is a prey fish for larger fishes. The species is harmless to humans.
Frequently asked questions
How do you recognise the Halfline hemiodus?
The Halfline hemiodus has a torpedo-shaped body, is mainly silver-grey and shows a horizontal stripes pattern. Dark longitudinal stripe extending into the lower caudal lobe; fast schooling swimmer.
Where does the Halfline hemiodus live?
The Halfline hemiodus lives in fresh water and is mostly found around mixed bottom. South America; rivers and floodplains.
How big does the Halfline hemiodus get?
The Halfline hemiodus grows to a maximum of about 20 cm.
Is the Halfline hemiodus dangerous to humans?
No, the Halfline hemiodus is harmless to humans. None required: this species is harmless to humans.
Is the Halfline hemiodus edible?
The Halfline hemiodus is rarely eaten.
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All data
Identification
Appearance
Habitat & distribution
Behaviour & biology
For anglers
Safety
Status & sources
Same genus Hemiodus
More from the family Hemiodontidae
Want the complete picture on the Halfline hemiodus?
Point your camera at the fish and Fin names the species in seconds. Free, and the Halfline hemiodus is one of 12,519 species in the app.