Aega Leach, 1816 (additional source)
Aega bicarinata Leach, 1818 (additional source)
Aega crenulata Lutken, 1859 (additional source)
Aega monophthalma Johnston, 1834 (additional source)
Aega psora (Linnaeus, 1758) (additional source)
Aega rosacea (Risso, 1816) (additional source)
Aega stroemii Lutken, 1859 accepted as Aega bicarinata Leach, 1818 (additional source)
Aega tridens Leach, 1816 (additional source)
Aegidae White, 1850 (additional source)
Ancyroniscus Caullery & Mesnil, 1919 (additional source)
Ancyroniscus bonnieri Caullery & Mesnil, 1919 (additional source)
Androniscus Verhoeff, 1908 (additional source)
Androniscus roseus (C. Koch, 1838) (additional source)
Anilocra Leach, 1818 (basis of record)
Anilocra frontalis H. Milne Edwards, 1840 (additional source)
Anisarthrus Giard, 1907 (additional source)
Anisarthrus pelseneeri Giard, 1907 (additional source)
Anthura Leach, 1814 (additional source)
Anthura gracilis (Montagu, 1808) (additional source)
Anthuridae Leach, 1814 (additional source)
Anthuridea accepted as Anthuroidea Leach, 1814 (basis of record)
Arcturella G. O. Sars, 1897 accepted as Astacilla Cordiner, 1793 (additional source)
Arcturella damnoniensis (Stebbing, 1874) accepted as Astacilla damnoniensis (Stebbing, 1874) (additional source)
Arcturella dilatata (G. O. Sars, 1883) accepted as Astacilla dilatata G. O. Sars, 1883 (additional source)
Arcturidae Dana, 1849 (additional source)
Arcturus Latreille, 1829 (additional source)
Arcturus deshayesii Lucas, 1846 accepted as Astacilla longicornis (Sowerby, 1806) (basis of record)
Armadillidae Brandt in Brandt & Ratzeburg, 1831 (basis of record)
Armadillidiidae Brandt, 1833 (basis of record)
Armadillidium Brandt in Brandt & Ratzeburg, 1831 (basis of record)
Armadillidium album Dollfus, 1887 (additional source)
Armadillidium depressum Brandt in Brandt & Ratzeburg, 1831 (basis of record)
Armadillidium vulgare (Latreille, 1804) (basis of record)
Asellidae Latreille, 1802 (additional source)
Asellota (basis of record)
Asellus Geoffroy, 1762 (additional source)
Asellus (Asellus) Geoffroy, 1762 (basis of record)
Asellus (Asellus) aquaticus (Linnaeus, 1758) represented as Asellus (Asellus) aquaticus aquaticus Linnaeus, 1758 (basis of record)
Asellus cavaticus Leydig, 1871 accepted as Proasellus cavaticus (Leydig, 1871) (basis of record)
Asellus meridianus Racovitza, 1919 represented as Asellus meridianus meridianus Racovitza, 1919 accepted as Proasellus meridianus meridianus (Racovitza, 1919) (basis of record)
Aspidarachna G. O. Sars, 1897 (basis of record)
Aspidarachna clypeata (G. O. Sars, 1870) (basis of record)
Aspidonotus G. O. Sars, 1897 accepted as Aspidarachna G. O. Sars, 1897 (basis of record)
Aspidonotus clypeatus (G. O. Sars, 1870) accepted as Aspidarachna clypeata (G. O. Sars, 1870) (basis of record)
Aspidophryxus G. O. Sars, 1883 (additional source)
Aspidophryxus peltatus G. O. Sars, 1883 (additional source)
Astacilla Cordiner, 1793 (additional source)
Astacilla dilatata G. O. Sars, 1883 (basis of record)
Astacilla intermedia (Goodsir, 1841) (additional source)
Astacilla longicornis (Sowerby, 1806) (additional source)
Astacilla pusilla (G. O. Sars, 1873) (additional source)
Athelges Gerstaecker, 1862 (additional source)
Athelges bilobus G. O. Sars, 1898 (additional source)
Athelges cladophorus Gerstaecker, 1862 (additional source)
Athelges paguri (Rathke, 1843) (additional source)
Athelges prideauxii Giard & Bonnier, 1890 (additional source)
Athelges tenuicaudis G. O. Sars, 1898 (additional source)
Baeonectes Wilson, 1982 (basis of record)
Baeonectes muticus (G. O. Sars, 1864) (additional source)
Bopyridae Rafinesque, 1815 (basis of record)
Bopyrina Kossmann, 1881 (additional source)
Bopyrina ocellata (Czerniavsky, 1868) (additional source)
Bopyrissa Nierstrasz & Brender à Brandis, 1931 (additional source)
Bopyrissa diogeni (Popov, 1929) (additional source)
Bopyroides Stimpson, 1864 (additional source)
Bopyroides cluthae (Scott, 1902) (additional source)
Bopyroides hippolytes (Kröyer, 1838) (additional source)
Bopyrus Latreille, 1802 accepted as Bopyrus Bosc, 1801 (additional source)
Bopyrus squillarum Latreille, 1804 accepted as Bopyrus crangorum (Fabricius, 1798) (additional source)
Cabiropidae Giard & Bonnier, 1887 (basis of record)
Caecognathia Dollfus, 1901 (additional source)
Caecognathia abyssorum (G. O. Sars, 1872) (additional source)
Caecognathia elongata (Krøyer, 1847) (additional source)
Caecognathia stygia (G. O. Sars, 1877) (additional source)
Calathura Norman & Stebbing, 1886 (additional source)
Calathura brachiata (Stimpson, 1853) (additional source)
Campecopea Leach, 1814 (additional source)
Campecopea hirsuta (Montagu, 1804) (additional source)
Cancricepon Giard & Bonnier, 1887 (additional source)
Cancricepon elegans Giard & Bonnier, 1887 (additional source)
Cancricepon pilula Giard & Bonnier, 1887 (additional source)
Cancrion Giard & Bonnier, 1886 accepted as Cancrion Giard & Bonnier, 1887 (additional source)
Cancrion floridus Giard & Bonnier, 1886 accepted as Cancrion floridus Giard & Bonnier, 1887 (basis of record)
Cancrion miser Giard & Bonnier, 1886 accepted as Cancrion miser Giard & Bonnier, 1887 (basis of record)
Chaetiliidae Dana, 1849 (additional source)
Cirolana cranchii Leach, 1818 (additional source)
Cirolana microphthalma Hoek, 1882 accepted as Politolana microphthalma (Hoek, 1882) (basis of record)
Cirolanidae Dana, 1852 (additional source)
Cleantis Dana, 1849 (additional source)
Cleantis prismatica (Risso, 1827) (additional source)
Clypeoniscus Giard & Bonnier, 1895 (basis of record)
Conilera Leach, 1818 (additional source)
Conilera cylindracea (Montagu, 1804) (additional source)
Crinoniscus Pérez, 1900 (basis of record)
Crinoniscus equitans Pérez, 1900 (basis of record)
Cryptoniscidae Kossmann, 1880 (basis of record)
Cyathura Norman & Stebbing, 1886 (additional source)
Cyathura carinata (Krøyer, 1847) (additional source)
Cymodoce Leach, 1814 (additional source)
Cymodoce emarginata Leach, 1818 (additional source)