| English or local name | Scientific name | Range | Last seen |
|---|---|---|---|
| (Pseudoscorpion) | Neobisium crassifemoratum | Lithuania? | ? |
| (Scorpion) | Akrav israchanani | Israel | Between 1960 and 1991 |
| (Tick) | Ixodes nitens | Christmas Island, Australia | 1903 |
| Budd’s Oahu tree-snail | Achatinella buddii | Oahu (Hawaii) | Around 1900 |
| Giant Brazilian earthworm | Rhinodrilus fafner | Brazil | 1912 |
| Caribbean monk seal nasal mite | Halarachne americana | Caribbean | 1952 |
| Lake Pedder earthworm | Hypolimnus pedderensis | Tasmania | After 1972 |
| Cascade funnelweb spider | Hadronyche pulvinator | Tasmania | 1926 |
| Namibian candonid crustacean | Namibcypris costata | Namibia (Africa) | 1996 ? |
| Pasadena freshwater shrimp | Syncaris pasadenae | California (USA) | 1933 |
| (Land snail) | Plegma duponti | Mauritius | 19th century |
| (Land snail) | Tropidophora carinata | Réunion, Mauritius | 1881 |
| Passenger pigeon mite | Diplaegidia gladiator | Canada | 1914 |
| (Orb-weaving spider) | Araneus hortensis | Madeira | 1859 |
| (Centipede) | Mecistocephalus cyclops | Seychelles | 1892 |
| Lion’s Hill velvet worm | Peripatopsis leonina | South Africa | 1900 |
| Alachua fairy shrimp | Branchinella alachua | Florida (USA) | 1947 |
| Brauer’s spiky harvestman | Centrobunus braueri | Mahé, Seychelles | 1894 |
| Gardiner’s giant mite | Dicrogonatus gardineri | Mahé, Seychelles | 1909 |
| (Harvestman) | Hirstienus nanus | Seychelles | 1908 |
| (Harvestman) | Metazalmoxis ferruginea | Mahé, Seychelles | 1892 |
| Spiny harvestman | Peromona erinacea | Seychelles | 1892 |
| (Harvestman) | Sitalcicus gardineri | Mahé, Seychelles | 1908 |
| Huntsman spider) | Stipax triangulifer | Mahé, Seychelles | 1898 |
| Huntsman spider) | Thomasettia seychellana | Seychelles | 1911 |
| (Millipede) | Eucarlia alluaudi | Marianne, Seychelles | 1892 |
| (Millipede) | Spirobolellus praslinus | Praslin, Seychelles | 1902 |
| (Millipede) | Orthomorpha crinita | Mahé, Seychelles | 1894 |
| (Copepod) | Afrocyclops pauliani | Madagascar | 1951 |
| (Copepod) | Tropodiaptomus ctenopus | Madagascar | nach 1930 ? |
| Sooty crayfish | Pacifastacus nigrescens | California (USA) | 1900 |
| Sandhills crayfish | Procambarus angustatus | Georgia (USA) | 1856 |
| Rubious Cave amphipod | Stygobromus lucifugus | Illinois (USA) | ? |
| Huntsman spider) | Pleorotus braueri | Mahé, Seychelles | 1894 |
| Shelta Cave crayfish | Orconectes sheltae | Alabama (USA) | Rediscovered in 2019 |
| Flat pigtoe mussel | Pleurobema marshalli | Alabama, Mississippi (USA) | 1980 |
| Green-blossom pearly mussel | Epioblasma torulosa gubernaculum | Tennessee River (USA) | 1982 |
| Tubercled-blossom pearly mussel | Epioblasma torulosa torulosa | USA | 1969 |
| Southern Acornshell mussel | Epioblasma othcaloogensis | Coosa & Cahaba River (USA) | 1974 |
| Stirrupshell mussel | Theliderma stapes | Alabama, Mississippi (USA) | 1987 |
| Turgid-blossom pearly mussel | Epioblasma turgidula | Cumberland & Tennessee River (USA) | 1965 |
| Upland combshell mussel | Epioblasma metastriata | Mobile River Basin (USA) | 1988 |
| Yellow-blossom pearly mussel | Epioblasma florentina florentina | Cumberland & Tennessee River (USA) | 1967 |
| Beaverpond marstonia | Marstonia castor | Georgia (USA) | 2000 |
| (Land snail) | Pseudopomatias lyui | India ? | ? |
| (Land snail) | Pseudopomatias zhuoi| India ? | ? |
|
| (Land snail) | Pseudopomatias shanensis | Myanmar | 1895 |
| (Land snail) | Pseudopomatias reischuetzi | India | 1903 |
| (Land snail) | Pseudopomatias harli | India | Early 20th century ? |
| Payden’s isopod | Exosphaeroma paydenae | Alaska, Aleutian Islands | 1873 |
| (Cirrina) | Stauroteuthis albatrossi | Northwest Pacific | 1906 |
| (Feather mite) | Chiasmalges carolinensis | North America | 1927 |
| Big black rocksnail | Lithasia hubrichti | Mississippi (USA) | Rediscovered in 2022 |
| Yellow-tipped Oahu tree snail | Achatinella apexfulva | Oahu (Hawaii) | 2019 |
| Decorated Oahu tree snail | Achatinella decora | Oahu (Hawaii) | Around 1900 |
| (Tree snail) | Achatinella valida | Oahu (Hawaii) | 1951 |
| Abbreviated Oahu tree snail | Achatinella abbreviata | Oahu (Hawaii) | 1963 |
| Elegant Oahu tree snail | Achatinella elegans | Oahu (Hawaii) | 1952 |
| (Tree snail) | Achatinella casta | Oahu (Hawaii) | ? |
| (Tree snail) | Achatinella caesia | Oahu (Hawaii) | Around 1900 |
| Two-morphed Oahu tree snail | Achatinella dimorpha | Oahu (Hawaii) | 1967 |
| Judd’s Oahu tree snail | Achatinella juddii | Oahu (Hawaii) | 1958 |
| (Tree snail) | Achatinella juncea | Oahu (Hawaii) | 1951 |
| (Tree snail) | Achatinella lehuiensis | Oahu (Hawaii) | 1922 or 1936 |
| (Tree snail) | Achatinella papyracea | Oahu (Hawaii) | Before 1945 |
| Spalding’s Oahu tree snail | Achatinella spaldingi | Oahu (Hawaii) | 1938 |
| Thaanum’s Oahu tree snail | Achatinella thaanumi | Oahu (Hawaii) | Around 1900 |
| Fagilde’s trapdoor spider | Nemesia berlandi | Portugal (North) | Rediscovered in 2023 |
| (Freshwater snail) | Aylacostoma stigmaticum | Argentina, Paraguay | ? |
| (Freshwater snail) | Aylacostoma guaraniticum | Argentina, Paraguay | ? |
| (Freshwater prawn) | Macrobrachium purpureamanus | Kundur (Indonesia) | 1998 ? |
| (Scorpion) | Belisarius ibericus | Iberian Peninsula | 1952 ? |
| (Scorpion) | Tityus exstinctus | Martinique | 1884 |
| (Freshwater crab) | Potamonautes bipartitus | Uganda | 1892 |
| Kunene River crab | Potamonautes dubius | Angola, Namibia | 1890 |
| (Hydrozoa) | Craspedacusta iseana | Japan | 1921 |
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