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.
Dexaminidae is a family of amphipods. 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:
Nebalia is a large genus of small crustaceans containing more than half of the species in the order Leptostraca, and was first described by William Elford Leach in 1814. The genus contains over thirty species:
Leucothoe is a genus of amphipods in the family Leucothoidae. It contains the following species:
Diastylis is a genus of crustaceans which belong to the family Diastylidae. It includes the following species:
Iphinoe is a genus of crustaceans which belong to the family Bodotriidae. It includes the following species:
Cardisoma crassum, known as the mouthless crab, is a species of terrestrial crab found in the coastal tropical eastern Pacific from Baja California to Peru. It has a purplish-blue shell, red legs and white main pincer. Cardisoma crassum is common among mangrove roots, where it builds its burrow. It also occasionally occurs on the driest part of the channel banks and flats".
Urothoe is a genus of very small marine amphipod crustaceans in the family Urothoidae. Members of the genus are found worldwide.
Nototropis is a genus of amphipod crustaceans, in the family, Atylidae, and was first described by Achille Costa in 1853.
Atylidae is a family of amphipod crustaceans, containing the following genera:
Stegocephalidae is a little-studied family of amphipods belonging to the suborder Gammaridea.
Carangoliopsis is a monotypic genus of crustaceans belonging to the monotypic family Carangoliopsidae. The only species is Carangoliopsis spinulosa.
Tulearus is a monotypic genus of crustaceans belonging to the monotypic family Tulearidae. The only species is Tulearus thomassini. The genus and species were first described in 1979 by Michel Ledoyer.
Harpiniopsis is a genus of crustaceans in the family Phoxocephalidae. Species of this genus are found throughout the world. It was first described by Knud Stephensen in 1925.
Maeridae is a family of marine amphipods, which was first described by Taudl Krapp-Schickel in 2008.
Ceradocus is a genus of amphipods in the family, Maeridae, and was first described in 1853 by Achille Costa. The type species is Ceradocus orchestiipes.
Aborolobatea is a genus of crustaceans in the Oedicerotidae family, and was first described in 1984 by Michel Ledoyer.
Aborolobatea insidiosa is a species of marine crustacean in the Oedicerotidae family, and was first described in 2009 by Lauren E. Hughes and James K. Lowry.
