The Derham's rivulus (Anablepsoides derhami) is a freshwater fish of the family Rivulidae that grows up to 5 cm.
Description
The Derham's rivulus is a killifish (Rivulidae) from shallow streams, pools and swamps of the Amazon basin in Peru. The species grows to about 5 cm and has a slender, cylindrical body; males are brightly coloured with spots and coloured fin margins. As a bottom-oriented fish of calm, often oxygen-poor water it snaps at insects, larvae and small invertebrates; in drought it can briefly move across moist ground. The fish is harmless to humans.
Frequently asked questions
How do you recognise the Derham's rivulus?
The Derham's rivulus has an elongate, eel-like body, is mainly multicoloured and shows a spots pattern.
Where does the Derham's rivulus live?
The Derham's rivulus lives in fresh water and is mostly found around open water.
How big does the Derham's rivulus get?
The Derham's rivulus grows to a maximum of about 5 cm.
Is the Derham's rivulus dangerous to humans?
No, the Derham's rivulus is harmless to humans.
Download Fin's Fish Guide
Identify fish in seconds, log your catches and dives. Join the TestFlight beta.
All data
Identification
Appearance
Habitat & distribution
Behaviour & biology
For anglers
Safety
Status & sources
Same genus Anablepsoides
More from the family Rivulidae
Download Fin's Fish Guide
Identify fish in seconds, log your catches and dives. Join the TestFlight beta.