Caenogastropoda
Family: Amnicolidae
| Scientific Name | Author/s | Common Name | Last Record | Distribution | Status | Taxon Profile |
| Amnicola rhombostoma | Thompson, 1968 | Squaremouth amnicola snail | ? | Florida, USA | Missing | Access |
| Bythinella eutrepha | (Paladilhe, 1867) | ? | Lez River, France | Missing | Access | |
| Bythinella gibbosa | Moquin-Tandon, 1856 | c.1910-1960 | France | Extinct | Access | |
| Bythinella intermedia | Mahler, 1950 | ? | Austria | Invalid (synonym) | Access | |
| Bythinella limnopsis | Letourneux & Bourguignat, 1887 | 1970's or before | Tunisia | Extinct | Access | |
| Bythinella mauritanica | Letourneux & Bourguignat, 1887 | 1887 | Djebel Zaghouan, Tunisia | Extinct | Access | |
| Bythinella microcochlia | Letourneux & Bourguignat, 1887 | pre-1888 | Oued Melah (near Oudref), Tunisia | Extinct | Access | |
| Bythinella punica | Letourneux & Bourguignat, 1887 | 1800's | Enfidaville, Tunisia | Extinct | Access | |
| Bythinella whiteleggei | Brazier in Etheridge, 1889 | ? | Lord Howe Island, New South Wales, Australia | Missing | Access | |
| Bythiospeum dubium | (Geyer, 1904) | Baden-Wurttemberg, Germany | Invalid (synonym) | Access | ||
| Bythiospeum gonostoma | (Geyer, 1905) | Germany | Invalid (synonym) | Access | ||
| Bythiospeum putei putei | (Geyer, 1904) | Germany | Invalid (synonym) | Access | ||
| Bythiospeum putei roesleri | (Geyer, 1904) | pre-1962 | Germany | Invalid (synonym) | Access | |
| Bythiospeum turritum | (Clessin, 1877) | Germany | Invalid (synonym) | Access |
Family: Annulariidae
| Scientific Name | Author/s | Common Name | Last Record | Distribution | Status | Taxon Profile |
| Parachondria basicarinata | (Pfeiffer, 1855) | St. Croix, U.S. Virgin Islands | Missing | Access |
Family: Assimineidae
| Scientific Name | Author/s | Common Name | Last Record | Distribution | Status | Taxon Profile |
| Assiminea sp. D | - | Ryukyu River bungeanum | ? | Japan | Missing | Access |
| Conacmella vagans | Hirase, 1907 | - | - | Ogasawara Islands, Japan | Rediscovered | Access |
| Cyclomorpha secessa | Bouchet & Abdou, 2003 | Before 1934 | Akamaru, Gambier Islands | Missing | Access | |
| Electrina succinea orites | Cooke & Clench, 1943 | ? | Rapa (=Rapa Iti =Otaro), Bass Islands, French Polynesia | Missing | Access | |
| Electrina succinea succinea | (Sowerby, 1846) | Rapa (=Rapa Iti =Otaro), Bass Islands, French Polynesia | Missing | Access | ||
| Fijianella sp. nov. 'Rotuma' | - | Rotuma Island, Rotuma Group, Fiji | Missing | Access | ||
| Garrettia rotella | (Pease, 1868) | Rarotonga, Cook Islands | Missing | Access | ||
| Kubaryia pilikia | Clench, 1948 | 2003 | Peleliu, Palau | Missing | Access | |
| Omphalotropis bassinblancensis | Griffiths & Florens, 2004 | Mauritius | Missing | Access | ||
| Omphalotropis caldwelli | Nevill, 1878 | Caldwell's land snail | Mauritius | Missing | Access | |
| Omphalotropis dupontiana | Nevill, 1878 | Mauritius | Missing | Access | ||
| Omphalotropis ingens | Mousson, 1870 | 1850's | Oneata, Lau Group, Fiji | Missing | Access | |
| Omphalotropis margarita | (Pfeiffer, 1851) | early 1900's | Gambier Islands | Missing | Access | |
| Omphalotropis maxima | Madge, 1939 | Great omphalotropis land snail | Mauritius (Raiatea?) | Missing | Access | |
| Omphalotropis multilirata | Pfeiffer, 1852 | Mauritius | Missing | Access | ||
Omphalotropis plicosa | Pfeiffer, 1852 | - | - | Mauritius | Rediscovered | Access |
| Omphalotropis quittorensis | Griffiths & Florens, 2004 | Rodrigues | Missing | Access | ||
| Omphalotropis rotumana | Smith, 1897 | Fiji or Wallis and Futuna or Tuvalu | Invalid (synonym)? | Access | ||
| Omphalotropis vacoasensis | Griffiths & Florens, 2004 | Mauritius | Missing | Access | ||
| Omphalotropis sp. nov. 'Mauritius' | - | Mauritius, Mascarene Islands | Missing | Access | ||
| Omphalotropis sp. nov. 'Rotuma' | - | 1938 | Rotuma Island, Rotuma Group, Fiji | Missing | Access | |
| Paludinella miyakoinsularis | Minato, 1980 | 100+ years ago? | Miyako-jima, Miyako Islands, the Southern Ryukyus, Okinawa Prefecture, Japan | Missing | Access | |
| Pseudogibbula cara | (Pilsbry & Bequaert, 1927) | 1920's | DR Congo (eastern) | Missing | Access | |
| Valvatorbis mauritii | Bequaert & Clench, 1936 | 1930's | DR Congo | Missing | Access |
Family: Bithyniidae
| Scientific Name | Author/s | Common Name | Last Record | Distribution | Status | Taxon Profile |
| Gabbiella barthi | (Brown, 1980) | 1980 | Kano Plain, Kenya | Missing | Access | |
| Gabbiella matadina | Mandahl-Barth, 1968 | c.1970 | Matadi, DR Congo | Missing | Access | |
| Soapitia dageti | Binder, 1961 | pre-1961 | Konkouré River, Guinea | Missing | Access |
Family: Borsoniidae
| Scientific Name | Author/s | Common Name | Last Record | Distribution | Status | Taxon Profile |
| Belaturricula gaini | Lamy, 1910 | - | - | Antarctica | Rediscovered | Access |
Family: Cancellariidae
| Scientific Name | Author/s | Common Name | Last Record | Distribution | Status | Taxon Profile |
| Cancellaria corrosa | Reeve, 1856 | - | - | Central America (western) | Rediscovered | Access |
Family: Cochliopidae
| Scientific Name | Author/s | Common Name | Last Record | Distribution | Status | Taxon Profile |
| Coahuilix parrasense | Czaja et al. 2017 | Holocene | Coahuila, Mexico | Missing | Access | |
| Cochliopa rowelli | Tryon, 1863 | Panamá | ? | Access | ||
| Dyris amazonicus | (Haas, 1949) | Brazil | Rediscovered? | Access | ||
| Heleobia achaja sorella | Westerlund, 1879 | pre-2000 | Velestino, Greece | Missing | Access | |
Heleobia peiranoi | (Weyrauch, 1963) | Argentina | ? | Access | ||
| Heleobia spinellii | (Gredler, 1859) | 1850 | Lombardy Region, Italy | Extinct | Access | |
| Heleobia steindachneri | Westerlund, 1902 | Greece | Missing | Access | ||
| Heleobia sublineata | (Pilsbryi, 1911) | Argentina | Missing | Access | ||
| Juturnia brunei | Taylor, 1987 | Brune spring snail, Brune's tryonia | 1993 | Phantom Lake, Texas, USA | Missing | Access |
| Paludiscala thompsoni | Czaja et al. 2017 | Holocene | Coahuila, Mexico | Missing | Access | |
| Sioliella effusa | Haas, 1949 | Brazil | Missing | Access | ||
| Zetekina panamensis | Bartsch, 1920 | Río Matasnillo, Panamá | Missing | Access |
Family: Conidae
| Scientific Name | Author/s | Common Name | Last Record | Distribution | Status | Taxon Profile |
| Conasprella sauros | (Garcia, 2006) | ? | Gulf of Mexico | Missing | Access | |
| Conus bellulus | Rolán, 1990 | 1970's | Cape Verde Islands (=Archipiélago de Cabo Verde) | Missing | Access | |
| Conus colmani | Röckel and Korn, 1990 | ? | Queensland, Australia | Missing | Access |
Family: Cyclophoridae
| Scientific Name | Author/s | Common Name | Last Record | Distribution | Status | Taxon Profile |
| Awalycaeus yanoshokoae | Yano & Matsuda, 2016 | - | Shikoku, Japan (western) | Rediscovered | Access | |
| Cyclophorus acutimarginatus | (Sowerby, 1842) | Borongan, Samar Is. Philippines | ? | Access | ||
| Cyclophorus horridulum | (Morelet, 1882) | - | - | Mayotte | Rediscovered | Access |
| Cyclophorus stenomphalus | (Pfeiffer, 1846) | India? | ? | Access | ||
| Cyclosurus mariei | Morelet, 1881 | - | - | Mayotte | Rediscovered | Access |
| Madgeaconcha sevathiani | Griffiths & Florens, 2004 | Mauritius | Missing | Access | ||
| Myxostoma petiverianum | (Wood, 1828) | - | - | Hon Cau Island, Vietnam | Rediscovered | Access |
| Nobuea kurodai | Minato & Tada, 1978 | Japan | Missing | Access |
Family: Diplommatinidae
| Scientific Name | Author/s | Common Name | Last Record | Distribution | Status | Taxon Profile |
| Diplommatina alata | (Crosse, 1866) | 1936 | Palau (=Belau) | Missing | Access | |
| Diplommatina aurea | Beddome, 1889 | pre-1937 | Palau (=Belau) | Missing | Access | |
| Diplommatina gibboni | Beddome, 1889 | 1936 | Palau (=Belau) | Missing | Access | |
| Opisthostoma decrespignyi | (H. Adams, 1865) | De Crespigny’s karst snail | pre-1970's? | Labuan Island, off Sabah, Malaysia | Missing | Access |
| Opisthostoma otostoma | Boettger, 1893 | Sabah karst snail | pre-1970's? | Islets around the island of Labuan, off Sabah, Malaysia | Missing | Access |
Palaina albata | (Beddome, 1889) | 1936 | Koror (=Oreor), Palau (=Belau) | Missing | Access | |
| Palaina patula | (Crosse, 1866) | 1936 | Palau (=Belau) | Missing | Access | |
| Palaina platycheilus | (Beddome, 1889) | 1936 | Koror (=Oreor), Palau (=Belau) | Missing | Access | |
| Palaina pupa | Crosse, 1866 | 1936 | Peleliu, Palau (=Belau) | Missing | Access | |
| Plectostoma charasense | (Tomlin, 1948) | 2007 | Pahang State, Malaysia | Missing | Access | |
| Plectostoma dindingensis | Liew, Vermeulen, Marzuki & Schilthuizen, 2014 | 1997 | around Kampung Bukit Dinding?, Jerantut, Pahang, Malaysia | Missing | Access | |
| Plectostoma sciaphilum | (van Benthem Jutting, 1952) | Shadow-loving karst snail | 1900's | The limestone karst at Bukit Panching, Pahang, Peninsular Malaysia | Extinct | Access |
| Plectostoma tenggekensis | Liew et al. 2014 | Tenggek braided snail | ? | Bukit Tenggek, Pahang, Malaysia | Missing | Access |
| Plectostoma turriforme | (van Benthem-Jutting, 1952) | Towered braided snail | 1997 | Bukit Sagu, Kuantan, Pahang, Malaysia | Missing | Access |
Family: Fasciolariidae
| Scientific Name | Author/s | Common Name | Last Record | Distribution | Status | Taxon Profile |
| Latirus vexillulum | (Reeve, 1842) | - | - | Caroline Island, Southern Line Islands, Kiribati | Rediscovered | Access |
Family: Hydrobiidae
| Scientific Name | Author/s | Common Name | Last Record | Distribution | Status | Taxon Profile |
| Alzoniella galaica | Boeters & Rolan, 1988 | Folgoso do Courel, Provincia de Lugo, Spain | Missing | Access | ||
| Antibaria notata | (Frauenfeld, 1865) | Montenegro | Erroneously considered extinct | Access | ||
| Austropyrgus dulvertonensis | Tenison-Woods, 1876 | Lake Dulverton austropyrgus | early 1990's? | Lake Dulverton, Tasmania, Australia | Invalid (synonym)? | Access |
| Beddomeia tumida | Petterd, 1889 | 1920's | Great Lake, Tasmania, Australia | Rediscovered? | Access | |
| Belgrandia moitessieri | (Bourguignat, 1866) | France | Missing | Access | ||
| Belgrandia varica | (J. Paget, 1854) | pre-1871 | France | Missing | Access | |
| Belgrandiella boetersi | P. Reischütz & Falkner, 1998 | Central Europe | Missing | Access | ||
| Belgrandiella cavernica | Boettger, 1957 | 1957 | İnsırtı cave, Turkey | Missing | Access | |
| Belgrandiella intermedia | Boeters, 1970 | Tiefsteinschlucht, Austria | Missing | Access | ||
| Belgrandiella kreisslorum | P. Reischütz, 1997 | pre-1997? | Hohenberg, north west of Graz, Steiermark, Austria | Missing | Access | |
| Belgrandiella multiformis | W. Fischer & P. Reischütz, 1995 | northern Alps, near Kalten Rinne, Weinzettelwand in Niederösterreich, Austria | Missing | Access | ||
| Bythiospeum pfeifferi | (Clessin, 1890) | - | - | Austria | Missing | Access |
| Dianella schlickumi | Schütt, 1962 | - | Lake Amvrakia, Greece | Rediscovered | Access | |
| Falsipyrgula beysehirana | (Schütt, 1965) | 1990's | Lake Beyşehir, Turkey | Missing | Access | |
| Floridobia monroensis | Dall, 1885 | Enterprise siltsnail, Enterprise spring snail | Benson's Mineral Spring, near Enterprise, Volusia County, Florida, USA | Missing | Access | |
| Floridobia parva | Thompson, 1968 | Pygmy siltsnail | ? | USA | Missing | Access |
| Graecoanatolica brevis | Radoman, 1973 | pre-1973 | Pinar Gözü spring, Turkey | Missing | Access | |
| Graecoanatolica conica | Radoman, 1973 | 1973 | Turkey | Missing | Access | |
| Graecoanatolica macedonica | Radoman & Stanovic, 1978 | pre-1992 | Lake Dorjan, Greece and Macedonia | Extinct | Access | |
| Graecoanatolica vegorriticola | Schütt, 1962 | - | - | Lake Petron and Lake Vegoritis, Greece | Rediscovered | Access |
| Graziana lacheineri adriolitoralis | Radoman, 1975 | Balkan region | Missing | Access | ||
| Grossuana serbica vurliana | Radoman, 1966 | Balkan region | Missing | Access | ||
| Hydrobia anatolica | Schütt, 1965 | pre-1994 | Düden waterfall, Antalya Province, Turkey | Missing | Access | |
| Hydrobia gracilis | Morelet, 1880 | pre-1880 | springs at Casablanca and Settat, Morocco | Extinct | Access | |
| Iglica gratulabunda | (A.J. Wagner, 1910) | ? | Austria | Missing | Access | |
| Islamia ateni | Boeters, 1969 | Spain | Extinct | Access | ||
| Islamia bendidis | Reischütz, 1988 | Greece | Missing | Access | ||
| Islamia graeca | Radoman, 1973 | 1973 or later | Lake Amvrakia, Greece | Missing | Access | |
| Islamia hadei | Gittenberger, 1982 | Greece | Missing | Access | ||
| Islamia pseudorientalica | Radoman, 1973 | pre-1973 | Kırkgöz springs, Antalya Province, Turkey | Missing | Access | |
| Islamia trichoniana | Radoman, 1979 | - | Aghia Sophia & Lake Trichonis, Greece | Rediscovered | Access | |
| Islamia zermanica | Radoman, 1973 | - | Zrmanja River, Croatia | Rediscovered | Access | |
| Kirelia carinata | Radoman, 1973 | 1970's | Lake Beyşehir, Turkey | Missing | Access | |
| Littoridina gaudichaudii | Souleyet, 1852 | Ecuador | Extinct | Access | ||
| Lyogyrus bakerianus | (Pilsbry, 1917) | New York, USA | Missing | Access | ||
| Marstonia castor | F.G. Thompson, 1977 | 1973? | Georgia, USA | Missing | Access | |
| Marstonia olivacea | Pilsbry, 1895 | Olive marstonia | 1940 | Alabama, USA | Extinct | Access |
| Marstonia ozarkensis | (Hinkley, 1915) | Ozark pyrg | 1997 | Arkansas & Missouri, USA | Missing | Access |
| Mercuria punica | (Letourneux & Bourguignat, 1887) | ? | Kebili, Tunisia | Missing | Access | |
| Nanivitrea alcaldei | (Jaume and Abbott, 1947) | Cuba | Missing | Access | ||
| Nanivitrea helicoides | (Gundlach, 1865) | Cuba | Missing | Access | ||
| Neohoratia coronadoi | (Bourguignat, 1870) | ? | ? | Missing | Access | |
| Ohridohauffenia drimica | Radoman, 1964 | pre-1984 | Macedonia | Extinct | Access | |
| Ohridohauffenia minuta | Radoman, 1955 | pre-2009 | Macedonia | Missing | Access | |
| Posticobia norfolkensis | (Sykes, 1900) | Norfolk (Island) Posticobia | 7 June 1913 | Norfolk Island, Australia (politically) | Extinct | Access |
| Pseudamnicola barratei | Letourneux & Bourguignat, 1887 | 1970's or before | Tunisia | Extinct | Access | |
| Pseudamnicola constantinae | (Letourneux, 1870) | pre-1871 | Algeria | Missing | Access | |
| Pseudamnicola depressispira | Logvinenko & Starobogatov, 1968 | Caspian Sea | Missing | Access | ||
| Pseudamnicola desertorum | Bourguignat, 1862 | pre-1863 | Algeria | Invalid (synonym) | Access | |
| Pseudamnicola doumeti | Letourneux & Bourguignat, 1887 | 1800's | Thala, Tunisia | Extinct | Access | |
| Pseudamnicola latasteana | Letourneux & Bourguignat, 1887 | 1800's | Oudref oasis, Tunisia | Extinct | Access | |
| Pseudamnicola letourneuxiana | (Bourguignat, 1862) | Algeria | Extinct | Access | ||
| Pseudamnicola macrostoma | Küster, 1853 | ? | Greece | Missing | Access | |
| Pseudamnicola oudrefica | Letourneux & Bourguignat, 1887 | 1800's | Oudref oasis, Tunisia | Extinct | Access | |
| Pseudamnicola ragia | Letourneux & Bourguignat, 1887 | 1800's | Kriz and Limaguess, Tunisia | Extinct | Access | |
| Pseudamnicola singularis | Letourneux & Bourguignat, 1887 | 1800's | Oudref and Oued Gabés, Tunisia | Extinct | Access | |
| Pseudoislamia balcanica | Radoman, 1979 | - | Greece (including Lake Trichonis) | Rediscovered | Access | |
| Pyrgulopsis brandi | Drake, 1953 | Springs at Las Palomas, Chihuahua State, México | Missing | Access | ||
| Pyrgulopsis carinata | Hershler, 1998 | Carinate duckwater pyrg | - | Little Warm Spring, Duckwater Valley, Nye County, Nevada, USA | Rediscovered | Access |
| Pyrgulopsis chupaderae | Taylor, 1987 | Chupadera springsnail | August 1999 | Willow Spring and an unnamed spring, Chupadera Mountains, Socorro County, New Mexico, USA | Missing | Access |
| Pyrgulopsis coloradensis | Hershler, 1998 | Blue Point pyrg | - | Blue Point Spring, Colorado River drainage, Clark County, Nevada, USA | Rediscovered | Access |
| Pyrgulopsis nevadensis | (Stearns, 1833) | Corded purg | ? | Nevada, USA | Extinct | Access |
| Pyrgulopsis patzcuarensis | Pilsbry, 1891 | Lake Patzcuaro, Michoacán, México | Missing | Access | ||
| Pyrgulopsis ruinosa | Hershler, 1998 | Fish Lake pyrg, Fish Lake Valley pyrg | pre-1994 | Spring southwest of The Crossing, Fish Lake Valley, Esmeralda County, Nevada | Missing | Access |
| Pyrgulopsis torrida | Hershler et al., 2016 | Little Sycamore pyrg | 2000 | Ventura County, California, USA | Missing | Access |
| Pyrgulopsis sp. nov. 'Nevada' | - | Longstreet-quellsnecke, Longstreet springsnail | 1975 | Nevada, USA | Missing | Access |
| Sardohoratia sulcata | Manganelli, Bodon, Cianfanelli, Talenti & Giusti, 1998 | 1995 or before? | Italy | Missing | Access | |
| Somatogyrus alcoviensis | Krieger, 1972 | Reverse pebblesnail | - | Georgia, USA | Rediscovered | Access |
| Somatogyrus amnicoloides | Walker, 1915 | Oachita pebblesnail, Ouachita pebblesnail | Ouachita River, Arkansas & Iowa, USA | Extinct | Access | |
| Somatogyrus aureus | Tryon, 1865 | Golden pebblesnail, Goldend pebblesnail | post-1936? | Alabama & Tennessee, USA | Missing | Access |
| Somatogyrus biangulatus | Walker, 1906 | Angular pebblesnail | Alabama, USA | Missing | Access | |
| Somatogyrus constrictus | Walker, 1904 | Knotty pebblesnail | Alabama, USA | Missing | Access | |
| Somatogyrus coosaensis | Walker, 1904 | Coosa pebblesnail | Alabama, USA | Missing | Access | |
| Somatogyrus crassilabris | Walker, 1915 | Thicklipped pebblesnail, Thick-lipped pebblesnail | White River, Arkansas, USA | Extinct | Access | |
| Somatogyrus crassus | Walker, 1904 | Stocky pebblesnail | Alabama, USA | Missing | Access | |
| Somatogyrus currierianus | I. Lea, 1863 | Tennessee pebblesnail | Tennessee River, Madison County, Alabama, USA | Missing | Access | |
| Somatogyrus decipiens | Walker, 1909 | Hidden pebblesnail | Alabama, USA | Missing | Access | |
| Somatogyrus excavatus | Walker, 1906 | Ovate pebblesnail | Alabama, USA | Missing | Access | |
| Somatogyrus georgianus | Walker, 1904 | Alabama & Georgia, USA | Invalid? | Access | ||
| Somatogyrus hendersoni | Walker, 1909 | Fluted pebblesnail | Alabama, USA | Missing | Access | |
| Somatogyrus humerosus | Walker, 1906 | Atlas pebblesnail | Alabama, USA | Missing | Access | |
| Somatogyrus nanus | Walker, 1904 | Dwarf pebblesnail | Alabama, USA | Missing | Access | |
| Somatogyrus obtusus | Walker, 1904 | Moon pebblesnail | Alabama, USA | Missing | Access | |
| Somatogyrus pygmaeus | Walker, 1909 | Pygmy pebblesnail | Alabama, USA | Missing | Access | |
| Somatogyrus quadratus | Walker, 1906 | Quadrate pebblesnail | Alabama, USA | Missing | Access | |
| Somatogyrus sargenti | Pilsbry, 1895 | Mud pebblesnail | Alabama, USA | Missing | Access | |
| Somatogyrus strengi | Pilsbry & Walker, 1906 | Rolling pebblesnail | - | Alabama, USA | Rediscovered | Access |
| Somatogyrus substriatus | Walker, 1906 | Choctaw pebblesnail | Alabama & Mississippi, USA | Missing | Access | |
| Somatogyrus wheeleri | Walker, 1915 | Channeled pebblesnail | Ouachita River, Arkansas, USA | Extinct | Access | |
Stygopyrgus bartonensis | Hershler and Longley, 1986 | Barton cavesnail | (rediscovered) | Texas, USA | Rediscovered | Access |
| Trichonia kephalovrissonia | Radoman, 1973 | Greece | Invalid (synonym) | Access | ||
| Trichonia trichonica | Radoman, 1973 | - | Greece (including Lake Trichonis) | Rediscovered | Access | |
| Tryonia hertleini | (Drake, 1956) | pre-1995 | Las Palomas, Mexico (northeast) | Missing | Access | |
| Tryonia julimesensis | Hershler, Liu & Landye, 2011 | 1991-2001 | Chihuahua, Mexico | Missing | Access | |
| Tryonia oasiensis | Hershler, Liu & Landye, 2011 | 2009 | Caroline Spring, Terrell County, Texas, USA | Missing | Access | |
| Tryonia santarosae | Hershler et al., 2014 | Mexico | Missing? | Access | ||
| Tryonia seemani | Frauenfeld, 1863 | - | - | Durango, Mexico | Rediscovered | Access |
| Tryonia shikueii | Hershler et al., 2014 | Mexico | Missing? | Access | ||
| Turcorientalia hohenackeri hohenackeri | Küster, 1853 | 1985? | Greece | Missing | Access | |
| Vinodolia fiumana | Radoman, 1973 | - | - | Croatia | Rediscovered | Access |
| Vinodolia fluviatilis | Radoman, 1973 | - | - | Croatia | Rediscovered | Access |
| Vinodolia lacustris | (Radoman, 1973) | Lake Prespa, Albania & Macedonia | Missing | Access | ||
| Vinodolia matjasici | Bole, 1961 | Montenegro | Missing | Access | ||
| Zaumia sanctizaumi | (Radoman, 1964) | pre-2003 | Lake Ohrid, Macedonia, the former Yugoslav Republic of | Missing | Access |
Family: Lithoglyphidae
| Scientific Name | Author/s | Common Name | Last Record | Distribution | Status | Taxon Profile |
| Clappia cahabensis | Clench, 1965 | Cahaba pebblesnail | - | Cahaba River, Pipp County, Alabama, USA | Rediscovered | Access |
| Clappia umbilicata | Walker, 1904 | Umbilicate pebblesnail | Alabama, USA | Extinct | Access | |
| Fluminicola minutissimus | Pilsbry, 1907 | Pixie pepplesnail | pre-1908 | lower Snake River basin, Price Valley, Weiser Canyon, Washington County, Idaho, USA | Missing | Access |
| Fluminicola nuttallianus | (Lea, 1838) | Dusky pepplesnail | (dead shells) | Willamette River, Oregon, USA | Missing | Access |
| Tanousia zrmanjae | (Brusina, 1866) | - | Zrmanja River, Croatia | Rediscovered | Access |
Family: Littorinidae
| Scientific Name | Author/s | Common Name | Last Record | Distribution | Status | Taxon Profile |
| Littoraria flammea | Philippi, 1847 | Flamed periwinkle | - | Shangai, China | Rediscovered | Access |
Family: Marginellidae
| Scientific Name | Author/s | Common Name | Last Record | Distribution | Status | Taxon Profile |
| Marginella reeveana | Petit, 1851 | - | - | Ghana | Rediscovered | Access |
Family: Megalomastomatidae
| Scientific Name | Author/s | Common Name | Last Record | Distribution | Status | Taxon Profile |
| Naggsiaconcha mauritianus | Griffiths & Florens, 2004 | 2500-1000 years BP | Mauritius | Missing | Access |
Family: Melanopsidae
| Scientific Name | Author/s | Common Name | Last Record | Distribution | Status | Taxon Profile |
Melanopsis germaini | Pallary, 1939 | 1955 | Syria | Missing | Access | |
| Melanopsis infracincta | von Martens, 1874 | 1940's | Syria & Turkey | Missing | Access | |
| Melanopsis khabourensis | Pallary, 1939 | 1939 | Turkey | Missing | Access | |
| Melanopsis pachya | Pallary, 1939 | 1930's | Syria | Missing | Access | |
| Melanopsis parreyssii | (Philippi, 1847) | Romania | Missing | Access |
Family: Moitessieriidae
| Scientific Name | Author/s | Common Name | Last Record | Distribution | Status | Taxon Profile |
Henrigirardia wienini | (Girardi, 2001) | (empty shells) | a cave in Hérault valley, France (southern) | Missing | Access | |
| Paladilhiopsis janinensis | Schütt, 1962 | late 1980's | Greece | Missing | Access | |
| Spiralix corsica | Bernasconi, 1994 | 1990's | Corsica, France | Missing | Access |
Family: Neocyclotidae
| Scientific Name | Author/s | Common Name | Last Record | Distribution | Status | Taxon Profile |
| Amphicyclotulus guadeloupensis | de la Torre, Bartsch & Morrison, 1942 | Guadeloupe land snail | Guadeloupe | Extinct | Access | |
| Incerticyclus cinereus | Droüet, 1859 | Grey Martinique land snail | Martinique | Extinct | Access |
Family: Ovulidae
| Scientific Name | Author/s | Common Name | Last Record | Distribution | Status | Taxon Profile |
| Primovula heleneae | Cate, 1973 | - | - | South Australia, Australia | Rediscovered | Access |
Family: Pachychilidae
| Scientific Name | Author/s | Common Name | Last Record | Distribution | Status | Taxon Profile |
| Pachychilus saussurei | Strebel, 1873 | Hidalgo, Mexico | Missing | Access | ||
| Potadoma kadeii | Samé-Ekobo & Kristensen, 1985 | 1985 or before? | Kadei River, Cameroon | Missing | Access | |
| Sulcospira martini | (Schepmann, 1898) | Java (=Jawa), Indonesia | Invalid (synonym) | Access | ||
| Sulcospira pisum | (Brot, 1868) | Java (=Jawa), Indonesia | Missing? | Access | ||
| Sulcospira sulcospira | (Mousson, 1848) | Java (=Jawa), Indonesia | Missing | Access |
Family: Pleuroceridae
| Scientific Name | Author/s | Common Name | Last Record | Distribution | Status | Taxon Profile |
| Athearnia anthonyi | Redfield, 1854 | Alabama, Georgia & Tennessee, USA | Missing | Access | ||
| Elimia brevis | Reeve, 1860 | Short-spired elimia | pre-1996 | Alabama, USA | Extinct | Access |
| Elimia clausa | I. Lea, 1861 | Closed elimia | 1967 or before? | USA | Extinct | Access |
| Elimia comalensis | Pilsbry, 1890 | Texas, USA | Missing | Access | ||
| Elimia fusiformis | I. Lea, 1861 | Fusiform elimia | USA | Extinct | Access | |
| Elimia gibbera | Goodrich, 1922 | Shouldered elimia, Gibber elimia | Alabama, USA | Extinct | Access | |
| Elimia hartmaniana | I. Lea, 1861 | High-spired elimia | USA | Extinct | Access | |
| Elimia impressa | I. Lea, 1841 | Constricted elimia | Alabama, USA | Extinct | Access | |
| Elimia jonesi | Goodrich, 1936 | Hearty elimia, Jones' elimia | Alabama, USA | Extinct | Access | |
| Elimia lachryma | Reeve, 1861 | Teardrop elimia, Nodulose Coosa River snail | - | Alabama, USA | Rediscovered | Access |
| Elimia laeta | Jay, 1839 | Ribbed elimia | pre-1996 | Alabama, USA | Extinct | Access |
| Elimia macglameriana | Goodrich, 1936 | pre-1996 | Alabama & Georgia, USA | Extinct | Access | |
| Elimia melanoides | (Conrad, 1834) | Black mudalia | - | Alabama, USA | Rediscovered | Access |
| Elimia pilsbryi | Goodrich, 1927 | Rough-lined elimia | 1967 or before? | USA | Extinct | Access |
| Elimia pupaeformis | I. Lea, 1864 | Pupa elimia | Alabama, USA | Extinct | Access | |
| Elimia pupoidea | Anthony, 1854 | Bot elimia | Alabama, USA | Missing | Access | |
| Elimia pygmaea | H.H. Smith, 1936 | Pygmy elimia | Alabama, USA | Extinct | Access | |
| Elimia timida timida | Goodrich, 1942 | Timid elimia | USA | Invalid (synonym)? | Access | |
| Elimia troostiana | Lea, 1838 | Mossy elimia | - | Tennessee, USA | Rediscovered | Access |
| Elimia vanuxemiana | I. Lea, 1843 | Cobble elimia | - | Alabama, USA | Rediscovered | Access |
†Gyrotoma excisa | Lea, 1843 | Excised slitshell | Alabama, USA | Extinct | Access | |
| †Gyrotoma lewisii | I. Lea, 1869 | Striate slitshell | pre-1996 | Coosa River, Alabama, USA | Extinct | Access |
| †Gyrotoma pagoda | I. Lea, 1845 | Pagoda slitshell | Coosa River, Alabama, USA | Extinct | Access | |
| †Gyrotoma pumila | I. Lea, 1860 | Ribbed slitshell | pre-1996 | Coosa River, Alabama, USA | Extinct | Access |
| †Gyrotoma pyramidata | Shuttleworth, 1845 | Pyramid slitshell | Coosa River, Alabama, USA | Extinct | Access | |
| †Gyrotoma walkeri | H.H. Smith, 1924 | Round slitshell, Walker's slitshell | Coosa River, Alabama, USA | Extinct | Access | |
| Leptoxis clipeata | H.H. Smith, 1922 | Agate rocksnail | Alabama, USA | Extinct | Access | |
| Leptoxis compacta | Anthony, 1854 | Oblong rocksnail | - | Cahaba River, central Alabama, USA | Rediscovered | Access |
| Leptoxis crassa | Haldeman, 1841 | Boulder snail | Alabama, USA | Extinct | Access | |
| Leptoxis foremanii | I. Lea, 1843 | Interrupted rocksnail, Georgia rocksnail | - | Alabama, USA | Rediscovered | Access |
| Leptoxis formosa | I. Lea, 1860 | Maiden rocksnail | Alabama & Georgia, USA | Extinct | Access | |
Leptoxis ligata | Anthony, 1860 | Rotund rocksnail | Alabama, USA | Extinct | Access | |
| Leptoxis lirata | H.H. Smith, 1922 | Lyrate rocksnail | Alabama, USA | Extinct | Access | |
| Leptoxis melanoides | (Conrad, 1834) | Black mudalia | Alabama, USA | Missing | Access | |
| Leptoxis minor | (Hinkley, 1912) | Knob mudalia | ? | Tennessee River, Alabama, USA | Extinct | Access |
| Leptoxis occultata | H.H. Smith, 1922 | Bigmouth rocksnail | pre-1996 | Alabama, USA | Extinct | Access |
| Leptoxis showalterii | I. Lea, 1860 | Coosa rocksnail | pre-1996 | Alabama, USA | Extinct | Access |
| Leptoxis torrefacta | Goodrich, 1922 | pre-1996 | Alabama, USA | Extinct | Access | |
| Leptoxis trilineata | Say, 1829 | Kentucky & Ohio, USA | Missing | Access | ||
| Leptoxis vittata | I. Lea, 1860 | Striped rocksnail | pre-1996 | Alabama, USA | Extinct | Access |
| Lithasia duttoniana | I. Lea, 1841 | Dutton's river snail, Helmet rocksnail | - | USA | Rediscovered | Access |
| Lithasia hubrichti | Clench, 1956 (1965?) | Big Black rocksnail | 14 Sept. 1964 or later (1966?) | Big Black River, near Edwards, Hind County, Mississippi, USA | Missing | Access |
| Lithasia jayana | (Lea, 1841) | Rugose rocksnail, Jay's river snail | ? | Duck River, Tennessee | Invalid (synonym)? | Access |
Family: Pomatiidae
| Scientific Name | Author/s | Common Name | Last Record | Distribution | Status | Taxon Profile |
| Tropidophora bewsheri | Morelet (year?) | Mauritius & Rodrigues | Missing | Access | ||
| Tropidophora bipartita | Morelet (year?) | Mauritius & Rodrigues | Missing | Access | ||
| Tropidophora carinata | Born, 1780 | Mauritius & Réunion, Mascarene Islands | Missing | Access | ||
| Tropidophora deflorata | Morelet, 1876 | Rodrigues, Mascarene Islands | Missing | Access | ||
| Tropidophora desmazuresi | (Crosse, 1873) | Mauritius (and Rodrigues?) | Extinct | Access | ||
| Tropidophora icterica | (Sowerby, 1847) | Mauritius, Mascarene Islands | Missing | Access | ||
| Tropidophora lienardi | Morelet, 1876 | Mauritius, Mascarene Islands | Missing | Access | ||
| Tropidophora mauritiana | (H. Adams, 1867) | Mauritius, Mascarene Islands | Missing | Access | ||
| Tropidophora scabra | (H. Adams, 1867) | Mauritius, Mascarene Islands | Missing | Access | ||
| Tropidophora semilirata | (Morelet, 1881) | - | - | Mayotte, Comoros Islands | Rediscovered | Access |
| Tropidophora vincentflorensi | Griffiths, 2000 | Trois Mamelles Mountain, Mauritius, Mascarene Islands | Missing | Access |
Family: Pomatiopsidae
| Scientific Name | Author/s | Common Name | Last Record | Distribution | Status | Taxon Profile |
| Pomatiopsis hinkleyi | Pilsbry, 1896 | Alabama & Tennessee, USA | Missing | Access | ||
| Tomichia cawstoni | Connolly, 1939 | pre-1939 | Eastern Cape Province, South Africa | Missing | Access |
Family: Potamididae
| Scientific Name | Author/s | Common Name | Last Record | Distribution | Status | Taxon Profile |
| Cerithidea fuscata | Gould, 1857 | 1935 | San Diego Bay, California, USA | Missing? | Access |
Family: Rissoidae
| Scientific Name | Author/s | Common Name | Last Record | Distribution | Status | Taxon Profile |
| Rissoa galvagni | Aradas & Maggiore, 1844 | - | - | Mediterranean | Rediscovered | Access |
Family: Tateidae
| Scientific Name | Author/s | Common Name | Last Record | Distribution | Status | Taxon Profile |
| Kuschelita inflata | Climo, 1974 | 1972 | Ministry of Works and Development bore, Roy(')s Hill, west of Hastings/near Napier, North Island, New Zealand | Missing | Access | |
| Leiorhagium solemi | Haase & Bouchet, 1998 | 1928 | New Caledonia | Extinct | Access | |
| Potamolithus concordianus | Parodiz, 1966 | Argentina | ? | Access | ||
| Potamopyrgus acus | Haase, 2008 | 1981 | Limestone Downs Station, Waikato, North Island, New Zealand | Missing | Access |
Family: Thiaridae
| Scientific Name | Author/s | Common Name | Last Record | Distribution | Status | Taxon Profile |
Aylacostoma brunneum | Vogler & Peso, 2014 | High Paraná River (Argentina-Paraguay) | Missing | Access | ||
| Aylacostoma chloroticum | Hylton Scott, 1954 | Argentina and Paraguay | Extinct in the wild | Access | ||
| Aylacostoma guaraniticum | Hylton-Scot, 1953 | pre-2000 | Paraná River (Argentina-Paraguay) | Extinct in the wild | Access | |
| Aylacostoma stigmaticum | Hylton-Scot, 1953 (1954?) | Argentina & Paraguay | Extinct | Access | ||
| Melanoides agglutinans | (Bequaert & Clench, 1941) | 1941 | Zaire River, DR Congo | Missing | Access |
Family: Vermetidae
| Scientific Name | Author/s | Common Name | Last Record | Distribution | Status | Taxon Profile |
| Dendropoma gaederopi | Mörch, 1861 | - | - | Mediterranean Sea | Rediscovered | Access |
Family: Viviparidae
| Scientific Name | Author/s | Common Name | Last Record | Distribution | Status | Taxon Profile |
| Bellamya phthinotropis | (Martens, 1892) | 1950's | Lake Victoria (Tanzania & Uganda) | Missing | Access | |
| Notopala sublineata hanleyi | Frauenfeld, 1864 | River snail, Blind river snail | - | Murray and Murrumbidgee drainages, South Australia | Rediscovered | Access |
| Notopala sublineata sublineata | Conrad, 1850 | River snail, Blind river snail | ? | the Darling River and its tributaries | Extinct in the wild | Access |
| Tchangmargarya yangtsunghaiensis | (Tschang & Tsi, 1949) | - | - | Lake Yangtsunghai, Yunnan Province, China | Rediscovered | Access |
| Tulotoma magnifica | Conrad, 1834 | Alabama live-bearing snail, Tulotoma | - | Coosa-Alabama River System, USA | Rediscovered | Access |
| Viviparus bermondianus | (d’Orbigny, 1842) | decades ago | Zapata Peninsula, Cuba | Missing | Access |
Family: Rissoidae
| Scientific Name | Author/s | Common Name | Last Record | Distribution | Status | Taxon Profile |
| Rissoa galvagni | Aradas & Maggiore, 1844 | - | - | Mediterranean | Rediscovered | Access |
Appendix 1: Status uncertain, may warrant inclusion above.
Conus sp.:
"At the other extreme, there are also a number of DD species where there is an almost total absence of recent sightings but extinction cannot be proven, i.e. there is reasonable doubt that the last individual has died [39]. This is exemplified by species such as C. jourdani from St Helena which is only known from ‘dead’ shells washed onto the beach in one small bay; C. bellulus and C. luteus which have not been reported since the 1970s; C. splendidulus which has not been seen in 20 years and C. sauros which is possibly extinct."
Source:
Peters, H., O'Leary, B. C., Hawkins, J. P., Carpenter, K. E. and Roberts, C. M. (2013). Conus: First Comprehensive Conservation Red List Assessment of a Marine Gastropod Mollusc Genus. PLoS ONE 8(12): e83353.