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Crustacean Fish Louse

Scientific Name
Argulus
Scientific Author
sp.
Taxonomy
(Crustacea: Branchiura)

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Diagnostic Notes

Branchiurans have a flattened, oval body, which is almost entirely covered by a wide carapace. The compound eyes are prominent, and the mouthparts and the first pair of antennae are modified to form a hooked, spiny proboscis armed with suckers, as an adaptation to parasitic life. They have two pairs of thoracic appendages, which they can use to swim between different hosts. They leave their hosts for up to three weeks in order to mate and lay eggs, and reattach afterwards behind the fish's operculum, where they feed on mucus and sloughed-off scales, or pierce the skin and feed on the internal fluids.

A common branchiuran genus is Argulus with over known 150 species.

More Information
Specimen Contact
Museum Victoria
Author
Ken Walker
Created
17/12/2010 05:02 AEST
Last Updated
17/12/2010 17:02 AEST
Citation
Ken Walker (2010) Crustacean Fish Louse (Argulus) Updated on 12/17/2010 5:02:37 PM Available online: PaDIL - http://www.padil.gov.au.
Image Use
Free for use under the Creative Commons Attribution 3.0 Australia License

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