The Sword pearlfish (Micromoema xiphophora) is a freshwater fish of the family Rivulidae that grows up to 6 cm.
Description
The sword pearlfish is an annual killifish (Rivulidae) from temporary rain pools of the Orinoco basin in Venezuela. The species grows to about 5 cm; males are brown with blue and red tints and an extended, sword-like lower tail lobe, females plainer. When the pools dry the adults die, but their eggs survive the drought in the mud and hatch with the next rains. It eats small invertebrates. The fish is harmless to humans.
Frequently asked questions
How do you recognise the Sword pearlfish?
The Sword pearlfish has an elongate, eel-like body and is mainly brown.
Where does the Sword pearlfish live?
The Sword pearlfish lives in fresh water and is mostly found around open water.
How big does the Sword pearlfish get?
The Sword pearlfish grows to a maximum of about 6 cm.
Is the Sword pearlfish dangerous to humans?
No, the Sword pearlfish is harmless to humans.
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Appearance
Habitat & distribution
Behaviour & biology
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Status & sources
More from the family Rivulidae
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