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Gammarus
Gammarus is an amphipod crustacean genus in the family Gammaridae. It contains more than 200 described species, making it one of the most speciose genera of crustaceans. Different species have different optimal conditions, particularly in terms of salinity, and different tolerances; Gammarus pulex, for instance, is a purely freshwater species, while Gammarus locusta is estuarine, only living where the salinity is greater than 25‰.
60 branches of this genus, most-observed first
Gammarus pulex
speciesGammarus pulex
Lacustrine Scud
speciesGammarus lacustris
Gammarus fasciatus
complexGammarus fasciatus
Roeseli's Scud
speciesGammarus roeselii
Trench Scud
speciesGammarus fossarum
Gammarus mucronatus
speciesGammarus mucronatus
Tide-pool Scud
speciesGammarus oceanicus
Gammarus locusta
speciesGammarus locusta
Gammarus minus
speciesGammarus minus
Northern Spring Amphipod
speciesGammarus pseudolimnaeus
Gammarus setosus
speciesGammarus setosus
Elvira's Scud
speciesGammarus elvirae
Gammarus lecroyae
speciesGammarus lecroyae
Gammarus duebeni
speciesGammarus duebeni
Gammarus insensibilis
speciesGammarus insensibilis
Gammarus balcanicus
speciesGammarus balcanicus
Gammarus nekkensis
speciesGammarus nekkensis
Gammarus palustris
speciesGammarus palustris
Gammarus nipponensis
speciesGammarus nipponensis
Gammarus lawrencianus
speciesGammarus lawrencianus
Gammarus aequicauda
speciesGammarus aequicauda
Seidel's Scud
speciesGammarus seideli
Gammarus komareki
speciesGammarus komareki
Gammarus wilkitzkii
speciesGammarus wilkitzkii
Gammarus uludagi
speciesGammarus uludagi
Gammarus zaddachi
speciesGammarus zaddachi
Gammarus syriacus
speciesGammarus syriacus
Gammarus troglophilus
speciesGammarus troglophilus
Noel's Amphipod
speciesGammarus desperatus
Gammarus acerbatus
speciesGammarus acerbatus
Gammarus jazdzewskii
speciesGammarus jazdzewskii
Gammarus salinus
speciesGammarus salinus
Illinois Cave Amphipod
speciesGammarus acherondytes
Perch Lake Scud
speciesGammarus percalacustris
Lang's Scud
speciesGammarus langi
Gammarus jenneri
speciesGammarus jenneri
Gammarus sobaegensis
speciesGammarus sobaegensis
Diminutive Amphipod
speciesGammarus hyalelloides
Pecos Amphipod
speciesGammarus pecos
Gammarus crinicornis
speciesGammarus crinicornis
Bousfield's Amphipod
speciesGammarus bousfieldi
Gammarus dabanus
speciesGammarus dabanus
Gammarus chevreuxi
speciesGammarus chevreuxi
Gammarus italicus
speciesGammarus italicus
Gammarus cohabitus
speciesGammarus cohabitus
Gammarus paynei
speciesGammarus paynei
Cole's Scud
speciesGammarus colei
Malpais Spring Scud
speciesGammarus malpaisensis
Gammarus stankokaramani
speciesGammarus stankokaramani
Gammarus stojicevici
speciesGammarus stojicevici
Gammarus stupendus
speciesGammarus stupendus
Gammarus subtypicus
speciesGammarus subtypicus
Gammarus suifunensis
speciesGammarus suifunensis
Gammarus sywulai
speciesGammarus sywulai
Gammarus takesensis
speciesGammarus takesensis
Gammarus taliensis
speciesGammarus taliensis
Gammarus tauricus
speciesGammarus tauricus
Gammarus teletzkensis
speciesGammarus teletzkensis
Gammarus topkarai
speciesGammarus topkarai
Gammarus tranquillus
speciesGammarus tranquillus
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 old herbals & bestiaries
In the stacks
Searching the stacks…
Every page naming Gammarus 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 59807.