Labulla thoracica (Wider, 1834)
Lacerta viridis (Laurenti, 1768)
Lachnus roboris (Linnaeus, 1758)
Laetiporus sulphureus (Bull.) Murrill
Lagenorhynchus acutus (Gray, 1828)
Lagenorhynchus albirostris (Gray, 1846)
Lagonosticta larvata (Rüppell, 1840)
Lagonosticta larvata vinacea (Hartlaub, 1857)
Lagonosticta senegala (Linnaeus, 1766)
Lagonosticta senegala senegala (Linnaeus, 1766)
Lagostomus maximus (Desmarest, 1817)
Lagothrix lagothricha (Humboldt, 1812)
Lagothrix lagotricha (Humboldt, 1812) – synoniem of Lagothrix lagothricha (Humboldt, 1812)
Lambis truncata (Lightfoot, 1786)
Lambis truncata sowerbyi (Mörch, 1872)
Lampris guttatus (Brünnich, 1788)
Lamprotornis chalcurus Nordmann, 1835
Lamprotornis superbus Rüppell, 1845
Larosterna inca (Lesson, 1827)
Larus argentatus Pontoppidan, 1763
Larus ridibundus Linnaeus, 1766 – synoniem of Chroicocephalus ridibundus (Linnaeus, 1766)
Latimeria chalumnae Smith, 1939
Latrodectus hesperus Chamberlin & Ivie, 1935
Latrodectus mactans (Fabricius, 1775)
Leanchoilia superlata Walcott 1912
Leiopathes grimaldii Roule, 1902
Leiothrix lutea (Scopoli, 1786)
Lemniscomys barbarus (Linnaeus, 1767)
Leonaspis sp. Richter & Richter, 1917
Leontopithecus rosalia (Linnaeus, 1766)
Leopardus tigrinus (Schreber, 1775)
Lepas anatifera Linnaeus, 1758
Leptocorisa oratoria (Fabricius, 1794)
Leptolepis knorri Agassiz, 1843
Leptonycteris nivalis (Saussure, 1860)
Leptosynanceia asteroblepa (Richardson, 1844)
Lethocerus indicus (Lepeletier & Serville, 1825)
Leucadendron platyspermum R. Br.
Leucaena leucocephala (Lam.) de Wit
Leucobryum glaucum Ångström in Fries, 1845
Libelloides coccajus (Denis & Schiffermüller, 1775)
Limosa lapponica (Linnaeus, 1758
Limulus polyphemus (Linnaeus, 1758)
Linckia laevigata (Linnaeus, 1758)
Lissotriton vulgaris (Linnaeus, 1758)
Lithobates catesbeianus (Shaw, 1802)
Lithodes maja (Linnaeus, 1758)
Lobatus gigas (Linnaeus, 1758)
Locustella lanceolata (Temminck, 1840)
Lodoicea maldivica (J.F.Gmel.) Pers.
Lodoicea sechellarum Labill. – synoniem of Lodoicea maldivica (J.F.Gmel.) Pers.
Lonchura punctulata (Linnaeus, 1758)
Lophius piscatorius Linnaeus, 1758
Lophophorus impejanus (Latham, 1790)
Lorius garrulus (Linnaeus, 1758)
Loxia curvirostra Linnaeus, 1758
Loxia pytyopsittacus von Borkhausen, 1793
Loxodonta africana Blumenbach, 1797
Lucanus cervus (Linnaeus, 1758)
Lucilia sericata (Meigen, 1826)
Lullula arborea (Linnaeus, 1758)
Lumbricus terrestris Linnaeus, 1758
Luscinia megarhynchos Brehm, 1831
Lutjanus argentimaculatus (Forsskål, 1775)
Lycaon pictus (Temminck, 1820)