Gammaridea is one of the suborders of the order Amphipoda, comprising small, shrimp-like crustaceans. Until recently, in a traditional classification, it encompassed about 7,275 (92%) of the 7,900 species of amphipods described by then, in approximately 1,000 genera, divided among around 125 families. That concept of Gammaridea included almost all freshwater amphipods, while most of the members still were marine.
Bateidae is a family of amphipod crustaceans, comprising the single genus Batea, which in turn contains thirteen species:
Dexaminidae is a family of amphipods. It contains the following genera:
Liljeborgiidae is a family of amphipods, containing the following genera:
Pardaliscidae is a family of amphipods, whose members typically inhabit the deepest parts of ocean basins. It contains the following genera:
Oedicerotidae is a family of amphipods. It comprises the following genera:
Lysianassidae is a family of marine amphipods, containing the following genera:
Paracalliopiidae is a family of amphipods, containing the following genera:
Allorchestes is a genus of amphipods with relatively small gnathopods, in the family Dogielinotidae; it contains the following species:
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.
Talorchestia is a genus of amphipod of the family Talitridae, containing the following species:
Austrogammarus is a genus of crustacean in family Paramelitidae. It contains the following species:
The Hyperiidae are a family of amphipods, containing these genera:
Cyproideidae is a family of amphipod crustaceans. Eighteen genera and 43 species have been described as of 2009. They mostly occur mostly in the Southern Hemisphere, where they form associations with corals, sponges, crinoids and hydroids.
Photis is a genus of amphipod crustaceans, containing the following species:
Amphilochus is a genus of crustaceans in the Amphipoda order, containing the following species:
Pontogeneiidae is a family of amphipod crustaceans, containing the following genera:
Nototropis is a genus of amphipod crustaceans, in the family, Atylidae, and was first described by Achille Costa in 1853.
Nototropis swammerdamei is an amphipod crustacean of the family Atylidae.
