Helicoidei
Taxonomy
Family: Camaenidae
| Scientific Name | Author/s | Common Name | Last Record | Distribution | Status | Taxon Profile |
| Aegista inexpecta | Kuroda & Minato, 1977 | ? | ? | ? | Access | |
| Amphidromus dohrni | (Pfeiffer, 1863) | ? | ? | ? | Access | |
| Amphidromus metabletus | Moellendorff, 1900 | ? | ? | ? | Access | |
| Amphidromus sinensis | (Benson, 1851) | ? | ? | ? | Access | |
| Calocochlia cailliaudi | Deshayes, 1839 | ? | ? | ? | Access | |
| Calocochlia chlorochroa | Sowerby, 1841 | ? | ? | ? | Access | |
| Calocochlia cumingii | Pfeiffer, 1842 | ? | ? | ? | Access | |
| Chloraea fragilis | (Sowerby, 1841) | ? | ? | ? | Access | |
| Euhadra murayamai | Habe, 1976 | ? | Japan | ? | Access | |
| Euhadra nachicola | Kuroda, 1929 | ? | Japan | ? | Access | |
| Euhadra sadoensis | (Pilsbry & Hirase, 1903) | ? | Japan | ? | Access | |
| Helicostyla carbonaria | (Sowerby, 1842) | ? | Cebu, Philippines | Missing? | Access | |
| Helicostyla collodes | (Sowerby, 1841) | ? | Cebu, Philippines | Missing? | Access | |
| Helicostyla cunctator | (Reeve, 1849) | ? | ? | ? | Access | |
| Helicostyla daphnis | (Broderip, 1841) | ? | ? | ? | Access | |
| Helicostyla moreleti | (Pfeiffer, 1890) | ? | ? | ? | Access | |
| Helicostyla pfeifferi | Semper, 1877 | ? | ? | ? | Access | |
| Helicostyla phloiodes | (Pfeiffer, 1842) | ? | Cebu, Philippines | ? | Access | |
| Helicostyla pilsbryi | (Hidalgo, 1890) | ? | ? | ? | Access | |
| Helicostyla propitia | (Fulton, 1907) | ? | ? | ? | Access | |
| Helicostyla velata | (Broderip, 1841) | ? | Cebu, Philippines | ? | Access | |
| Helicostyla zebuensis | (Broderip, 1841) | ? | Cebu, Philippines | ? | Access | |
| Mandarina chichijimana forma A | - | c. 25,000 yr BP | Chichijima, Ogasawara Islands (=Bonin Islands), Japan | Extinct | Access | |
| Mandarina hayamii | Chiba, 1989 | Late Pleistocene? | Chichijima, Ogasawara Islands (=Bonin Islands), Japan | Extinct | Access | |
| Mandarina io | Chiba, 1989 | c. 22,000 yr BP | Chichijima, Ogasawara Islands (=Bonin Islands), Japan | Extinct | Access | |
| Mandarina luhuana | Sowerby, 1839 | 1500 ± 60 yrBP | Minamijima, Ogasawara Islands, Japan | Extinct | Access | |
| Mandarina nola | Chiba, 1989 | Before 33,000 yr BP | Chichijima, Ogasawara Islands (=Bonin Islands), Japan | Extinct | Access | |
| Mandarina ogasawarana | Chiba, 1999 | 2000 yB.P. | Hahajima, Ogasawara Islands (=Bonin Islands), Japan | Extinct | Access | |
| Mandarina pallasiana | Pfeiffer, 1850 | Holocene | Chichijima, Ogasawara Islands, Japan | Extinct | Access | |
| Mandarina ponderosa forma C | Pilsbry, 1901 | Late Pleistocene? | Okimura Cave, Ogasawara Islands (=Bonin Islands), Japan | Extinct | Access | |
| Mandarina titan | Chiba, 1989 | Between 8-13,000 yr BP | Minamajima, Ogasawara Islands (=Bonin Islands), Japan | Extinct | Access | |
| Polydontes perplexa | (Pfeiffer, 1850) | ? | ? | ? | Access | |
| Polydontes undulata | (Férussac, 1821) | ? | ? | ? | Access | |
| Satsuma fausta | (Pilsbry, 1902) | ? | ? | ? | Access |
Family: Canariellidae
| Scientific Name | Author/s | Common Name | Last Record | Distribution | Status | Taxon Profile |
| Canariella pontelirae | Hutterer, 1994 | - | - | Teno Peninsula, Tenerife, Canary Islands, North Africa | Rediscovered | Access |
| Montserratina becasis | (Rambur, 1868) | 1800's | Mount Canigou, Pyrenees, France | Missing | Access |
Family: Geomitridae
| Scientific Name | Author/s | Common Name | Last Record | Distribution | Status | Taxon Profile |
| Geomitra delphinuloides | (R. T. Lowe, 1860) | 1864 | Madeira | Missing | Access | |
| Geomitra grabhami | (Wollaston, 1878) | 1870's | Deserta Grande Island, Madeira, Portugal | Missing | Access | |
| Helicopsis paulhessei | (Lindholm, 1936) | ? | Gaspra Village, Ukraine | Extinct | Access | |
| Monilearia pulverulenta | (R.T. Lowe, 1861) | ? | Gran Canaria, Canary Islands, North Africa | Missing | Access | |
| Trochoidea picardi | (Haas, 1955) | ? | Israel | Extinct | Access |
Family: Helicidae
| Scientific Name | Author/s | Common Name | Last Record | Distribution | Status | Taxon Profile |
| Helix georgiana | Quoy & Gaimard, 1832 | - | - | Western Australia, Australia | Rediscovered | Access |
| Helix lottah | Petterd, 1879 | Cataract Gorge snail | - | Tasmania, Australia | Rediscovered | Access |
| Hemicycla efferata | (Mousson, 1872) | - | - | La Gomera, Canary Islands, North Africa | Rediscovered | Access |
| Hemicycla ethelema | (J. Mabille, 1882) | 1932 | Gran Canaria, Canary Islands, North Africa | Missing | Access | |
| Hemicycla eurythyra | Boettger 1908 | - | - | Tenerife, Canary Islands, North Africa | Rediscovered | Access |
| Hemicycla gomerensis | (Morelet, 1864) | ? | La Gomera, Canary Islands, North Africa | Missing | Access | |
| Hemicycla granomalleata | (Wollaston, 1878) | ? | La Palma, Canary Islands, North Africa | Missing | Access | |
| Hemicycla guanartemes | (Grasset, 1857) | ? | Gran Canaria, Canary Islands, North Africa | Missing | Access | |
| Hemicycla hedybia | (J. Mabille, 1882) | 1882 or before | Canary Islands, North Africa | Missing | Access | |
| Hemicycla maugeana | (Shuttleworth, 1852) | ? | El Hierro, Canary Islands, North Africa | Missing | Access | |
| Hemicycla modesta | (Férussac, 1821) | - | - | Teneriffe, Canary Islands, North Africa | Rediscovered | Access |
| Hemicycla saulcyi | d'Orbigny, 1839 | - | - | Gran Canaria, Canary Islands, North Africa | Rediscovered | Access |
| Hemicycla vermiplicata | (Wollaston, 1878) | 1878 or before? | La Palma, Canary Islands, North Africa | Extant? | Access | |
| Rossmaessleria scherzeri | Zelebor, 1867 | - | - | Gibraltar | Rediscovered | Access |
Family: Helicodontidae
| Scientific Name | Author/s | Common Name | Last Record | Distribution | Status | Taxon Profile |
| Darderia bellverica | Altaba, 2007 | Darder’s toothed snail | Late Pleistocene | Mallorca, Balearic Islands | Extinct | Access |
Family: Hygromiidae
| Scientific Name | Author/s | Common Name | Last Record | Distribution | Status | Taxon Profile |
| Discula lyelliana | (R.T. Lowe, 1852) | pre-1994 | Madeira | Missing | Access | |
| Discula tetrica | (R.T. Lowe, 1852) | 50+ years ago | Madeira | Missing | Access | |
| Lemniscia galeata | Lowe, 1862 | ? | Madeira | Missing | Access | |
| Pseudocampylaea dianae | (Pfeiffer, 1856) | ? | Saint Helena | Invalid (synonym) | Access | |
| Pseudocampylaea laetissima | (Smith, 1892) | ? | Saint Helena | Invalid (synonym) | Access | |
| Pseudocampylaea lowii | (A. Férussac, 1835) | pre-1879 | Madeira | Extinct | Access |
Family: Pleurodontidae
| Scientific Name | Author/s | Common Name | Last Record | Distribution | Status | Taxon Profile |
| Coloniconcha prima | Pillsbry, 1933 | - | (rediscovered) | Hispaniola | Rediscovered | Access |
| Discolepis desidens | (Rang, 1834) | (rediscovered) | ? | Rediscovered | Access | |
| Pleurodonte desidens | Rang, 1834 | pre-1835 | Martinique | Extinct | Access |
Family: Polygyridae
| Scientific Name | Author/s | Common Name | Last Record | Distribution | Status | Taxon Profile |
| Cryptomastix mullani blandi | Hemphill, 1892 | Bland Oregonian | 1990 | Idaho, USA | Missing? | Access |
| Cryptomastix sanburni | Binney, 1886 | Kingston Oregonian | ? | Idaho, USA | Missing? | Access |
| Stenotrema morosum | Hubricht, 1977 | ? | Tennessee, USA | Missing? | Access | |
| Vespericola ohlone | Roth, 2003 | Ohlone hesperian | late 1800's | Alameda County, California, USA | Missing? | Access |
Family: Xanthonychidae
| Scientific Name | Author/s | Common Name | Last Record | Distribution | Status | Taxon Profile |
| Eremarionta newcombi | Pilsbry & Ferriss, 1923 | ? | Arizona, USA | Missing | Access | |
| Monadenia circumcarinata | (Stearns, 1879) | Keeled sideband, keeled snail | 1984 | California, USA | Missing | Access |