| Suborder | Amphilochidea
Boeck, 1871
| 65
1110
7007 | Families
Genera
Species |
| Suborder | Caprellidea
Leach, 1814 ⇒ Caprelloidea
Skeleton shrimp, Whale lice | 0
0
0 | Families
Genera
Species |
| Suborder | Colomastigidea
Stebbing, 1899
| 2
6
69 | Families
Genera
Species |
| Suborder | Gammaridea
Latreille, 1802
Gammarid amphipods | 25
187
1436 | Families
Genera
Species |
| Suborder | Hyperiidea
Milne-Edwards, 1830
Hyperiideans | 39
143
737 | Families
Genera
Species |
| Suborder | Hyperiopsidea
Bovallius, 1886
| 3
5
26 | Families
Genera
Species |
| Suborder | Ingolfiellidea
Hansen, 1903
| 2
18
65 | Families
Genera
Species |
| Suborder | Pseudingolfiellidea
Lowry et Myers, 2012
| 1
1
4 | Family
Genus
Species |
| Suborder | Senticaudata
Lowry & Myers, 2013
| 126
1479
10491 | Families
Genera
Species |
| Superfamily | Phtisicoidea
Vassilenko, 1968 ⇒ Paracercopidae
| 0
0
0 | Families
Genera
Species |
| Family | Aeginellidae
Leach, 1814
| 0
0 | Genera
Species |
| Family | Anatylidae
accepted as Atylidae Lilljeborg, 1865
| 0
0 | Genera
Species |
| Family | Brevitalitridae
Myers & Lowry, 2020
| 0
0 | Genera
Species |
| Family | Carinogammaridae
Tachteew, 2001
| 0
0 | Genera
Species |
| Family | Crymostygidae
Kristjánsson & Svavarsson, 2004
| 0
1 | Genera
Species |
| Family | Curiotalitridae
Myers & Lowry, 2020
| 0
0 | Genera
Species |
| Family | Iulopidae
accepted as Iulopididae Zeidler, 2004
| 0
0 | Genera
Species |
| Family | Macrohectopodidae
Sowinsky, 1915
| 0
0 | Genera
Species |
| Family | Megaluropodidae
Bousfield, 1982
| 0
0 | Genera
Species |
| Family | Miramassidae
| 0
0 | Genera
Species |
| Family | Orchestiidae
accepted as Talitridae Rafinesque, 1815
| 0
0 | Genera
Species |
| Family | Palasseidae
| 0
0 | Genera
Species |
| Family | Parabogidiellidae
Cannizzaro, Gibson & Sawicki, 2020
| 1
1 | Genus
Species |
| Family | Paraleptamphopiidae
| 0
0 | Genera
Species |
| Family | Paraliscidae
| 0
0 | Genera
Species |
| Family | Paramphithoidae
accepted as Epimeriidae Boeck, 1871
| 1
0 | Genus
Species |
| Family | Paramphitoidae
accepted as Epimeriidae Boeck, 1871
| 0
0 | Genera
Species |
| Family | Prophliantidae
accepted as Dexaminidae Leach, 1814
| 0
0 | Genera
Species |
| Family | Regaliidae
Lowry, 2006
| 0
0 | Genera
Species |
| Family | Seborgiidae
Holsinger, 1980
| 1
2 | Genus
Species |
| Family | Thaumatelsonidae
accepted as Stenothoidae Boeck, 1871
| 0
0 | Genera
Species |
| Family | Tironidae
accepted as Synopiidae Dana, 1853
| 0
0 | Genera
Species |
| Family | Tryphantidae
| 0
0 | Genera
Species |
| Genus | Aerope
Desmarest, 1823
| 0 | Species |
| Genus | Apocyamus
Margolis, McDonald & Bousfield, 2000
| 0 | Species |
| Genus | Austrohyalella
Bousfield, 1996
| 0 | Species |
| Genus | Axelboekia
| 0 | Species |
| Genus | Boruta
Wrzeasniowski, 1888 ⇒ Synurella
| 2 | Species |
| Genus | Cylindrimolaris
Ortiz & Lalana, 1999
| 0 | Species |
| Genus | Driope
Spence Bate, 1862 ⇒ Podochela
| 1 | Species |
| Genus | Electicus
Lowry & Stoddart, 1997
| 0 | Species |
| Genus | Gammaroidorum
Jarzembowski, Chény, Fang & Wang, 2020
| 2 | Species |
| Genus | Humilomoera
Staude, 1995
| 0 | Species |
| Genus | Mesocyamus
Margolis, McDonald & Bousfield, 2000
| 0 | Species |
| Genus | Mesohyalella
Bousfield, 1996
| 0 | Species |
| Genus | Moanamoera
Staude, 1995
| 0 | Species |
| Genus | Orcinocyamus
Margolis, McDonald & Bousfield, 2000
| 1 | Species |
| Genus | Paraneohela
Oldevig, 1959
| 1 | Species |
| Genus | Poeckilogammarus
| 0 | Species |
| Genus | Polichinellobizarrocomic
| 0 | Species |
| Genus | Rhithromoera
Staude, 1995
| 0 | Species |
| Genus | Rosagammarus
McMenamin, Zapata & Hussey, 2013
| 0 | Species |
| Genus | Spindlerella
Brandt & Vassilenko, 1995
| 1 | Species |
| Genus | Transitroides ♰
Bousfield & Poinar, 1994
| 1 | Species |
| Genus | Variogammarus
Tachteew, 1995 ⇒ Onychogammarus
| 0 | Species |
