• Abludomelita aculeata (Chevreux, 1911)
• Abludomelita amoena (Hansen, 1888)
• Abludomelita gladiosa (Spence Bate, 1862)
• Abludomelita obtusata (Montagu, 1813)
• Abludomelita richardi (Chevreux, 1900)
• Aeginella spinosa Boeck, 1861
• Aeginina aenigmatica Laubitz, 1972
• Aeginina echinata (Boeck) accepted as Aeginina longicornis (Krøyer, 1843)
• Aeginina laevis (Boeck, 1861) accepted as Aeginina longicornis (Krøyer, 1843)
• Aeginina longicornis (Krøyer, 1843)
• Aeginina spinosissima (Stimpson, 1853) accepted as Aeginina longicornis (Krøyer, 1843)
• Africorchestia spinifera (Mateus, 1962)
• Akerogammarus contiguus (Pjatakova, 1962)
• Akerogammarus knipowitschi Derzhavin & Pjatakova, 1967
• Allomelita pellucida (G.O. Sars, 1883)
• Amathilla angulosus (Rathke, 1843) accepted as Gammarellus angulosus (Rathke, 1843)
• Amathilla homari (J.C. Fabricius, 1779) sensu Stebbing, 1888 accepted as Gammarellus homari (J.C. Fabricius, 1779)
• Amathilla sabini (Leach, 1819) accepted as Gammarellus angulosus (Rathke, 1843)
• Amathillina affinis G.O. Sars, 1894
• Amathillina cristata G.O. Sars, 1894
• Amathillina maximovitschi G.O. Sars, 1896
• Amathillina pusilla G.O. Sars, 1896
• Amathillina spinosa G.O. Sars, 1896
• Americorchestia longicornis (Say, 1818)
• Americorchestia megalophthalma (Spence Bate, 1862)
• Amphiporeia lawrenciana Shoemaker, 1929
• Amphiporeia virginiana Shoemaker, 1933
• Amphitholina cuniculus (Stebbing, 1874)
• Amphithopsis depressa Schiecke, 1976
• Amphithopsis latipes Sars, 1858 sensu Boeck, 1870 accepted as Stenopleustes latipes (M. Sars, 1858)
• Amphithopsis longicaudata Boeck, 1861
• Amphitoe fucicola (Leach, 1814) accepted as Gammarella fucicola (Leach, 1814)
• Amphitoe ramondi Adouin, 1826 accepted as Ampithoe ramondi Audouin, 1826
• Ampithoe fastidiosa Mateus & Mateus, 1991
• Ampithoe ferox (Chevreux, 1901)
• Ampithoe gammaroides (Spence Bate, 1857) accepted as Pleonexes gammaroides Spence Bate, 1857
• Ampithoe gammaroides sensu G.O. Sars, 1894 accepted as Ampithoe helleri Karaman, 1975 accepted as Pleonexes helleri (Karaman, 1975)
• Ampithoe helleri Karaman, 1975 accepted as Pleonexes helleri (Karaman, 1975)
• Ampithoe littorina Spence Bate, 1857 accepted as Ampithoe rubricata (Montagu, 1808)
• Ampithoe longimana Smith, 1873
• Ampithoe neglecta Lincoln, 1976 accepted as Ampithoe helleri Karaman, 1975 accepted as Pleonexes helleri (Karaman, 1975)
• Ampithoe pomboi (Mateus & Alfonso, 1974)
• Ampithoe ramondi Audouin, 1826
• Ampithoe riedli Krapp-Schickel, 1968
• Ampithoe rubicata (Montagu, 1808) accepted as Ampithoe rubricata (Montagu, 1808)
• Ampithoe rubricata (Montagu, 1808)
• Ampithoe spuria Krapp-Schickel, 1978 accepted as Peramphithoe spuria (Krapp-Schickel, 1978) accepted as Sunamphitoe spuria (Krapp-Schickel, 1978)
• Ampithoe vaillanti Lucas, 1864 accepted as Ampithoe ramondi Audouin, 1826
• Ampithoe valida S.I. Smith, 1873
• Animoceradocus semiserratus (Spence Bate, 1862)
• Aora atlantidea Reid, 1951
• Aora gracilis (Spence Bate, 1857)
• Aora spinicornis Afonso, 1976
• Aora typica Krøyer, 1845
• Aoroides curvipes Ariyama, 2004
• Aoroides longimerus Ren & Zheng, 1996
• Aoroides semicurvatus Ariyama, 2004
• Apherusa alacris Krapp-Schickel, 1969
• Apherusa bispinosa (Spence Bate, 1857)
• Apherusa borealis Sars, 1893 accepted as Apherusa cirrus (Spence Bate, 1862)
• Apherusa chiereghinii Giordani- Soika, 1949
• Apherusa cirrus (Spence Bate, 1862)
• Apherusa clevei G.O. Sars, 1904
• Apherusa corbeli Lagardère, 1968
• Apherusa fragilis (Goës, 1866) accepted as Rozinante fragilis (Goës, 1866)
• Apherusa glacialis (Hansen, 1888)
• Apherusa henneguyi Chevreux & Fage, 1925
• Apherusa jurinei (H. Milne Edwards, 1830)
• Apherusa mediterranea Chevreux, 1911
• Apherusa megalops (Buchholz, 1874)
• Apherusa megalops (G.O. Sars, 1883) accepted as Apherusa sarsii Shoemaker, 1930
• Apherusa ovalipes Norman & Scott, 1906
• Apherusa ruffoi Krapp-Schickel, 1969
• Apherusa sarsii Shoemaker, 1930
• Apherusa tridentata (Bruzelius, 1859)
• Apherusa vexatrix Krapp-Schickel, 1979
• Apocorophium acutum (Chevreux, 1908)
• Apocorophium lacustre (Vanhöffen, 1911)
• Apohyale crassipes (Heller, 1866)
• Apohyale perieri (Lucas, 1846)
• Apohyale prevostii (H. Milne Edwards, 1830)
• Arcitalitrus dorrieni (Hunt, 1925)
• Arctolembos arcticus (Hansen, 1887)
• Aurobogidiella italica (G. Karaman, 1979)
• Autonoe angularis (Ledoyer, 1970)
• Autonoe borealis (Myers, 1976)
• Autonoe denticarpus (Myers & McGrath, 1978)
• Autonoe hirsutipes (Stebbing, 1895)
• Autonoe karamani (Myers, 1976)
• Autonoe longicornis (Chevreux, 1909)
• Autonoe longidigitans Bonnier, 1896
• Autonoe longipes (Liljeborg, 1852)
• Autonoe megacheir G. O. Sars, 1879
• Autonoe rubromaculatus (Ledoyer, 1973)
• Autonoe spiniventris Della Valle, 1893
• Autonoe viduarum (Myers, 1974)
• Autonoe websteri Sars, 1894 accepted as Lembos websteri Spence Bate, 1857
• Axelboeckia spinosa (G.O. Sars, 1894)
• Barrowgammarus macginitei (Shoemaker, 1955)
• Bathyphotis tridentata Stephensen, 1944