| Class EUMALACOSTRACA |
| Order DECAPODA |
| Family Palaemonidae |
| Palaemon Weber, 1795 |
| Palaemon serratus (Pennant, 1777) |
| Family Alpheidae |
| Athanas Leach, 1814 |
| Athanas nitescens (Leach, 1814) |
| Family Hippolytidae |
| Lebbeus White, 1847 |
| Lebbeus polaris (Sabine, 1824) |
| Family Pandalidae |
| Pandalus Leach, 1815 |
| Pandalus montagui Leach, 1814 |
| Family Nephropidae |
| Homarus Weber, 1795 |
| Homarus gammarus (Linnaeus, 1758) |
| Nephrops Leach, 1814 |
| Nephrops norvegicus (Linnaeus, 1758) |
| Family Palinuridae |
| Palinurus Weber, 1795 |
| Palinurus elephas (Fabricius, 1787) |
| Family Lithodidae |
| Lithodes Latreille, 1805 |
| Lithodes maia (Linnaeus, 1758) |
| Family Paguridae |
| Pagurus Fabricius, 1775 |
| Pagurus bernhardus (Linnaeus, 1758) |
| Pagurus cuanensis Bell, 1845 |
| Pagurus prideaux Leach, 1815 |
| Family Galatheidae |
| Galathea Fabricius, 1793 |
| Galathea intermedia Liljeborg, 1851 |
| Galathea nexa Embleton, 1834 |
| Galathea squamifera Leach, 1814 |
| Galathea strigosa (Linnaeus, 1767) |
| Munida Leach, 1820 |
| Munida rugosa (Fabricius, 1775) |
| Family Porcellanidae |
| Pisidia Leach, 1820 |
| Pisidia longicornis (Linnaeus, 1767) |
| Family Dromiidae |
| Dromia Weber, 1795 |
| Dromia personata (Linnaeus, 1758) |
| Family Leucosiidae |
| Ebalia Leach, 1817 |
| Ebalia tumefacta (Montagu, 1808) |
| Family Majidae |
| Maja Lamarck, 1801 |
| Maja brachydactyla Balss, 1922 |
| Hyas Leach, 1814 |
| Hyas araneus (Linnaeus, 1758) |
| Hyas coarctatus Leach, 1815 |
| Achaeus Leach, 1817 |
| Achaeus cranchii Leach, 1817 |
| Inachus Weber, 1795 |
| Inachus dorsettensis (Pennant, 1777) |
| Inachus phalangium (Fabricius, 1775) |
| Macropodia Leach, 1814 |
| Macropodia rostrata (Linnaeus, 1761) |
| Family Corystidae |
| Corystes Bosc, 1802 |
| Corystes cassivelaunus (Pennant, 1777) |
| Family Atelecyclidae |
| Atelecyclus Leach, 1814 |
| Atelecyclus rotundatus (Olivi, 1792) |
| Atelecyclus undecimdentatus (Herbst, 1783) |
| Family Cancridae |
| Cancer Linnaeus, 1758 |
| Cancer pagurus Linnaeus, 1758 |
| Family Portunidae |
| Bathynectes Stimpson, 1870 |
| Bathynectes longipes (Risso, 1816) |
| Liocarcinus Stimpson, 1870 |
| Liocarcinus arcuatus (Leach, 1814) |
| Liocarcinus corrugatus (Pennant, 1777) |
| Liocarcinus depurator (Linnaeus, 1758) |
| Liocarcinus holsatus (Fabricius, 1798) |
| Liocarcinus marmoreus (Leach, 1814) |
| Liocarcinus pusillus (Leach, 1815) |
| Necora Holthuis, 1987 |
| Necora puber (Linnaeus, 1767) |
| Carcinus Leach, 1814 |
| Carcinus maenas (Linnaeus, 1758) |
| Family Goneplacidae |
| Goneplax Leach, 1814 |
| Goneplax rhomboides (Linnaeus, 1758) |
| Family Xanthidae |
| Pilumnus Leach, 1815 |
| Pilumnus hirtellus (Linnaeus, 1761) |