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Fish Lice
Argulus
The family Argulidae contains the carp lice or fish lice – a group of parasitic crustaceans of uncertain position within the Maxillopoda. Although they are thought to be primitive forms, they have no fossil record. The Argulidae are the only family in the order Arguloida (occasionally "Arguloidea"), although a second family, the Dipteropeltidae, has been proposed.
25 branches of this genus, most-observed first

Common Fish Louse
speciesArgulus foliaceus

Japanese Fishlouse
speciesArgulus japonicus

Mercury's Fishlouse
speciesArgulus appendiculosus

Garloving Fishlouse
speciesArgulus lepidostei

Niagara Fishlouse
speciesArgulus stizostethii

Puget Fishlouse
speciesArgulus pugettensis

Blackstriped Fishlouse
speciesArgulus borealis

American Fishlouse
speciesArgulus americanus

Argulus maculosus
speciesArgulus maculosus

Argulus flavescens
speciesArgulus flavescens

Argulus coregoni
speciesArgulus coregoni

Gulfcoast Fishlouse
speciesArgulus funduli

Mississippi Fishlouse
speciesArgulus mississippiensis

Rusty Green Fishlouse
speciesArgulus bicolor
Herring Fishlouse
speciesArgulus alosae
Argulus ambystoma
speciesArgulus ambystoma
Chesapeake Fishlouse
speciesArgulus chesapeakensis
Argulus chromidis
speciesArgulus chromidis
Argulus rhamdiae
speciesArgulus rhamdiae
Argulus mexicanus
speciesArgulus mexicanus
Argulus arcassonensis
speciesArgulus arcassonensis
Variable Fishlouse
speciesArgulus varians
Dusky Fishlouse
speciesArgulus fuscus

Longtailed Fishlouse
speciesArgulus longicaudatus
Argulus canadensis
speciesArgulus canadensis
Where it lives
Recorded sightings
—
geo-referenced records in GBIF, from museums, herbaria and field observers.
Drag the globe to turn it. Dots are where records exist, not a range map; darker means more records.
In the stacks
Searching the stacks…
Every page naming Argulus in the Biodiversity Heritage Library →
This page is assembled live from iNaturalist, GBIF, Wikipedia, the Source Library and the Internet Archive. It is not yet part of the hand-edited codex. iNaturalist taxon 248564.