Gammaridae

Gammaridae
Gammarus roeselii
Scientific classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Arthropoda
Class: Malacostraca
Order: Amphipoda
Suborder: Senticaudata
Infraorder: Gammarida
Parvorder: Gammaridira
Superfamily: Gammaroidea
Family: Gammaridae
Leach, 1813
Genera

Numerous, see text

Gammaridae is a family of amphipods. In North America they are included among the folk taxonomic category of "scuds", and otherwise gammarids is usually used as a common name.

They have a wide distribution, centered on Eurasia, and are euryhaline as a lineage, inhabiting fresh to marine waters.