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fish louse

Aega psora

Classification

Order
Isopoda
Family
Aegidae

The family Argulidae, whose members are commonly known as carp lice or fish lice, (not to be confused with Caligidae, also commonly referred to as sea lice) are parasitic crustaceans in the class Ichthyostraca. It is the only family in the monotypic subclass Branchiura and the order Arguloida, although a second family, Dipteropeltidae, has been proposed. Taxonomy Branchiurans were once thought to be copepods but are now recognised as a separate subclass in the superclass Oligostraca due to their distinct morphological characteristics.

Distribution

(c) Julien Savoie, some rights reserved (CC BY), uploaded by Julien Savoie · CC-BY
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Countries in the Picchu catalog
Canada · 4Norway · 3