MolluscaBase taxon details
Didacna Eichwald, 1838
381889 (urn:lsid:marinespecies.org:taxname:381889)
accepted
Genus
Cardium trigonoides Pallas, 1771 accepted as Didacna trigonoides (Pallas, 1771) (type by subsequent designation)
Cardium (Didacna) Eichwald, 1838 · unaccepted
Cardium (Pseudocardita) Oppenheim, 1919 † · unaccepted > junior subjective synonym
Didacna (Didacna) Eichwald, 1838 · alternate representation
Pseudocardita Oppenheim, 1919 † · unaccepted > junior subjective synonym
Species Didacna adacnoides Nevesskaja, 1958 †
Species Didacna agalarovae Bogachev & Gadzhiev, 1967 †
Species Didacna akschaena G. I. Popov, 1983 †
Species Didacna aligulica Nevesskaja, 2007 †
Species Didacna anomala Nevesskaja, 2007 †
Species Didacna artemiana Bogachev, 1932 †
Species Didacna baeri (Grimm, 1877)
Species Didacna baericrassa (Pavlov, 1925) †
Species Didacna barbotdemarnii (Grimm, 1877)
Species Didacna bergi Fedorov, 1948 †
Species Didacna borisphenica Nevesskaja, 1963 †
Species Didacna capellinii Gillet, 1963 †
Species Didacna carditoides Andrusov, 1910 †
Species Didacna catalaunica Gillet, 1959 †
Species Didacna catillus (Eichwald, 1841) †
Species Didacna celekenica Fedorov, 1948 †
Species Didacna charamica Fedorov, 1953 † (accepted > unreplaced junior homonym, invalid: junior homonym of Didacna charamica Ruzhentsev, 1928)
Species Didacna corpulenta Zhukov, 1933 †
Species Didacna cristata Bogachev, 1932 †
Species Didacna curta G. I. Popov, 1983 †
Species Didacna delenda Bogachev, 1932 †
Species Didacna dilatata Pravoslavlev, 1939 †
Species Didacna ebersini Fedorov, 1953 †
Species Didacna eichwaldi (Krynicki, 1837)
Species Didacna elongata Taner, 1974 † (accepted > unreplaced junior homonym)
Species Didacna emendata G. I. Popov, 1983 †
Species Didacna eulachia Fedorov, 1948 †
Species Didacna fedorovi Nevesskaja, 2007 †
Species Didacna fuchsi (Philippson, 1890) † (accepted > unreplaced junior homonym, junior homonym of Cardium fuchsi Capellini, 1873 and Cardium fuchsi Neumayr, 1875)
Species Didacna gilgilica Nevesskaja, 2007 †
Species Didacna golubyatnikovi Yanina & Svitoch, 1987 †
Species Didacna grimmi Pravoslavlev, 1939 †
Species Didacna gurganica Vekilov, 1969 †
Species Didacna guriensis Nevesskaja, 1963 †
Species Didacna hospes Vekilov, 1969 †
Species Didacna hyrcana G. I. Popov, 1983 † (accepted > unreplaced junior homonym)
Species Didacna itilica G. I. Popov, 1983 †
Species Didacna kolesnikovi Fedorov, 1953 †
Species Didacna kovalevskii Bogachev, 1932 †
Species Didacna laodicaeensis (Oppenheim, 1919) †
Species Didacna lectosis (Fontannes, 1882) †
Species Didacna lindleyi Fedorov, 1948 †
Species Didacna lissitzyni G. I. Popov, 1983 †
Species Didacna longipes (Grimm, 1877)
Species Didacna mingetschaurica Vekilov, 1969 †
Species Didacna mischovdagica Vekilov, 1969 †
Species Didacna miussica G. I. Popov, 1983 †
Species Didacna monodacnoides G. I. Popov, 1983 † (accepted > unreplaced junior homonym)
Species Didacna nalivkini Vassoevich, 1930 †
Species Didacna obliquetrigona Pravoslavlev, 1939 †
Species Didacna obunca G. I. Popov, 1983 †
Species Didacna olla Nevesskaja, 1963 †
Species Didacna ovalis Yanina & Svitoch, 1987 †
Species Didacna ovatocrassa Pravoslavlev, 1939 †
Species Didacna parallella Bogachev, 1932
Species Didacna parvula Nalivkin, 1915 †
Species Didacna phrygica (Oppenheim, 1919) †
Species Didacna plana Nevesskaja, 1958 †
Species Didacna pontocaspia (Pavlov, 1925) †
Species Didacna porsugelica Nevesskaja, 1958 †
Species Didacna praetrigonoides Nalivkin & Anisimov, 1914 †
Species Didacna pravoslavlevi Fedorov, 1948 †
Species Didacna profundicola Logvinenko & Starobogatov, 1966
Species Didacna protracta (Eichwald, 1841)
Species Didacna pseudocrassa (Pavlov, 1925) †
Species Didacna pseudoplanicostata Gillet, 1965 †
Species Didacna pseudosulcatina Gillet, 1965 †
Species Didacna pyramidata (Grimm, 1877)
Species Didacna raricostata G. I. Popov, 1983 †
Species Didacna rudis Nalivkin, 1915 †
Species Didacna schirvanica Vekilov & Asadullaev, 1964 †
Species Didacna schuraosenica Svitoch & Chernova, 1978 †
Species Didacna spondylopsis (Almera & Bofill y Poch, 1894) †
Species Didacna subartemiana Pravoslavlev, 1939 †
Species Didacna subcatillus Andrusov, 1910 †
Species Didacna subcrassa Pravoslavlev, 1939 †
Species Didacna subimbricata Pravoslavlev, 1939 †
Species Didacna sublongipes Pravoslavlev, 1939 †
Species Didacna subpyramidata Pravoslavlev, 1939 †
Species Didacna subquadrata Nevesskaja, 2007 † (accepted > unreplaced junior homonym, junior homonym of Didacna grimmi var. subquadrata Pravoslavlev, 1939)
Species Didacna subtrigonula Nevesskaja, 2007 †
Species Didacna surachanica Andrusov, 1910 †
Species Didacna symmetrica G. I. Popov, 1983 †
Species Didacna tamanica Nevesskaja, 1963 †
Species Didacna tanaitica G. I. Popov, 1983 †
Species Didacna trigonoides (Pallas, 1771)
Species Didacna trigonula K. A. Ali-Zade, Vekilov & Geivandova, 1957 †
Species Didacna turkmenica Nevesskaja, 2007 †
Species Didacna ultima G. I. Popov, 1983 †
Species Didacna umbonata Ebersin, 1958 †
Species Didacna vulgaris Andrusov, 1910 †
Subgenus Didacna (Crassadacna) Eberzin, 1962 † accepted as Pontalmyra Stefanescu, 1896 † (unaccepted > junior subjective synonym)
Species Didacna alata Bogachev & Gadzhiev, 1967 † accepted as Didacna eulachia Fedorov, 1948 † (tentative junior subjective synonym)
Species Didacna alibajramliensis Gadzhiev, 1966 † accepted as Didacna baeri (Grimm, 1877) (unaccepted > junior subjective synonym)
Species Didacna alibajramlinica Vekilov, 1969 † accepted as Didacna carditoides Andrusov, 1910 † (unaccepted > junior subjective synonym)
Species Didacna andrusovi Gude, 1913 † accepted as Pontalmyra ovata (Deshayes, 1838) † (unnecessary replacement name; junior synonym)
Species Didacna annosa Chelidze, 1947 † accepted as Pontalmyra annosa (Chelidze, 1947) † (unaccepted > superseded combination)
Species Didacna apscheronica Geivandova, 1956 † accepted as Didacna delenda Bogachev, 1932 † (unaccepted > junior subjective synonym, tentative junior subjective synonym)
Species Didacna atschistskalensis Gabuniya, 1953 † accepted as Pontalmyra subcrenulata (Andrusov, 1910) † (unaccepted > junior subjective synonym)
Species Didacna bogatschevi Pravoslavlev, 1939 † accepted as Didacna subcrassa subcrassa Pravoslavlev, 1939 † (tentative subjective synonym)
Species Didacna bollenensis (Mayer, 1871) † accepted as Pontalmyra bollenensis (Mayer, 1871) † (unaccepted > superseded combination)
Species Didacna catilloides Pravoslavlev, 1939 † accepted as Didacna grimmi Pravoslavlev, 1939 † (subjective synonym)
Species Didacna chiae (Almera, 1894) † accepted as Pontalmyra incerta chiae (Almera, 1894) † (superseded rank and combination)
Species Didacna colossea Asadullaev, 1965 † accepted as Didacna pravoslavlevi pravoslavlevi Fedorov, 1948 † (unaccepted > junior subjective synonym)
Species Didacna convexa Geivandova, 1956 † accepted as Didacna umbonata Ebersin, 1958 † (unaccepted > junior subjective synonym)
Species Didacna crassa (Eichwald, 1829) accepted as Didacna eichwaldi (Krynicki, 1837)
Species Didacna crassatellata (Deshayes, 1838) † accepted as Pontalmyra crassatellata (Deshayes, 1838) † (unaccepted > superseded combination)
Species Didacna crassatelloides Andrusov, 1909 † accepted as Pontalmyra crassatelloides (Andrusov, 1909) † (unaccepted > superseded combination)
Species Didacna deltastriata Livental, 1931 † accepted as Tschaudia tschaudae guriana (Livental, 1931) † (tentative subjective synonym)
Species Didacna depereti Andrusov, 1909 † accepted as Pontalmyra depereti (Andrusov, 1909) † (unaccepted > superseded combination)
Species Didacna deserta (Stoliczka, 1862) † accepted as Pontalmyra deserta (Stoliczka, 1862) † (unaccepted > superseded combination)
Species Didacna digressa Livental, 1931 † accepted as Tschaudia digressa (Livental, 1931) † (unaccepted > superseded combination)
Species Didacna elongatoovata Pravoslavlev, 1939 † accepted as Didacna obliquetrigona Pravoslavlev, 1939 † (tentative subjective synonym)
Species Didacna frequens Pravoslavlev, 1939 † accepted as Didacna subrudis Pravoslavlev, 1939 † accepted as Didacna grimmi Pravoslavlev, 1939 † (subjective synonym)
Species Didacna gibba Pravoslavlev, 1939 † accepted as Didacna subrudis Pravoslavlev, 1939 † accepted as Didacna grimmi Pravoslavlev, 1939 † (tentative subjective synonym)
Species Didacna gmelini Pravoslavlev, 1939 † accepted as Didacna subcrassa subcrassa Pravoslavlev, 1939 † (subjective synonym)
Species Didacna guriana Livental, 1931 † accepted as Tschaudia tschaudae guriana (Livental, 1931) † (superseded rank and combination)
Species Didacna hebes Pravoslavlev, 1939 † accepted as Didacna subcrassa subcrassa Pravoslavlev, 1939 † (tentative subjective synonym)
Species Didacna hians Pravoslavlev, 1939 † accepted as Didacna obliquetrigona Pravoslavlev, 1939 † (tentative subjective synonym)
Species Didacna hyrcana Andrusov, 1923 † accepted as Turcmena intermedia (Eichwald, 1841) † (unaccepted > junior subjective synonym)
Species Didacna incerta (Deshayes, 1838) † accepted as Pontalmyra incerta (Deshayes, 1838) † (unaccepted > superseded combination)
Species Didacna incrassa Pravoslavlev, 1939 † accepted as Didacna subcrassa subcrassa Pravoslavlev, 1939 † (subjective synonym)
Species Didacna incrassata Bogachev, 1932 † accepted as Didacna nalivkini Vassoevich, 1930 † (unaccepted > junior subjective synonym)
Species Didacna infidelis "Taktakishvili, 1962" † (unaccepted > nomen nudum)
Species Didacna janischevckii Geivandova, 1956 † accepted as Didacna artemiana Bogachev, 1932 † (unaccepted > junior subjective synonym)
Species Didacna karelini Fedorov, 1953 † accepted as Didacna pravoslavlevi karelini Fedorov, 1953 † (unaccepted > superseded rank)
Species Didacna karpevitschae Bogachev & Gadzhiev, 1967 † accepted as Didacna porsugelica Nevesskaja, 1958 † (tentative junior subjective synonym)
Species Didacna karpinskyi Andrusov, 1910 † accepted as Pontalmyra karpinskyi (Andrusov, 1910) † (unaccepted > superseded combination)
Species Didacna knipovitshi Bogachev & Gadzhiev, 1967 † accepted as Didacna eulachia Fedorov, 1948 † (tentative junior subjective synonym)
Species Didacna kurovdagica Vekilov, 1969 † accepted as Didacna charamica Fedorov, 1953 † (unaccepted > junior subjective synonym)
Species Didacna laskarevi Andrusov, 1909 † accepted as Pontalmyra laskarevi (Andrusov, 1909) † (unaccepted > superseded combination)
Species Didacna lindeyi [sic] † accepted as Didacna lindleyi Fedorov, 1948 † (unaccepted > misspelling)
Species Didacna lintriculus Pravoslavlev, 1939 † accepted as Didacna subrudis Pravoslavlev, 1939 † accepted as Didacna grimmi Pravoslavlev, 1939 † (subjective synonym)
Species Didacna loerentheyi Andrusov, 1923 † accepted as Turcmena loerentheyi (Andrusov, 1923) † (unaccepted > superseded combination)
Species Didacna longintermedia Andrusov, 1923 † accepted as Turcmena intermedia (Eichwald, 1841) † (unaccepted > junior subjective synonym)
Species Didacna lutrae Andrusov, 1909 † accepted as Pontalmyra incerta lutrae (Andrusov, 1909) † (superseded rank and combination)
Species Didacna medeae Davitashvili, 1932 † accepted as Pontalmyra medeae (Davitashvili, 1932) † (unaccepted > superseded combination)
Species Didacna megrelica Taktakishvili, 1966 † accepted as Pontalmyra megrelica (Taktakishvili, 1966) † (unaccepted > superseded combination)
Species Didacna meissarensis Andrusov, 1909 † accepted as Pontalmyra meissarensis (Andrusov, 1909) † (unaccepted > superseded combination)
Species Didacna multintermedia Andrusov, 1923 † accepted as Turcmena intermedia (Eichwald, 1841) † (unaccepted > junior subjective synonym)
Species Didacna multistriata (Rousseau, 1842) † accepted as Pontalmyra multistriata (Rousseau, 1842) † (unaccepted > superseded combination)
Species Didacna mutabilis G. F. Schneider, 1933 † accepted as Pontalmyra mutabilis (G. F. Schneider, 1933) † (unaccepted > superseded combination)
Species Didacna naviculata Pravoslavlev, 1939 † accepted as Didacna grimmi Pravoslavlev, 1939 † (subjective synonym)
Species Didacna novarossica (Barbot de Marny, 1869) † accepted as Pontalmyra novarossica (Barbot de Marny, 1869) † (unaccepted > superseded combination)
Species Didacna oriovacensis (Neumayr, 1875) † accepted as Plagiodacna carinata (Deshayes, 1838) † accepted as Plagiodacna angulosa (Deshayes, 1857) † (unaccepted > junior subjective synonym)
Species Didacna ostroumovi Pravoslavlev, 1939 † accepted as Didacna subrudis Pravoslavlev, 1939 † accepted as Didacna grimmi Pravoslavlev, 1939 † (subjective synonym)
Species Didacna otiophora (Brusina, 1884) † accepted as Pontalmyra otiophora (Brusina, 1884) † (unaccepted > superseded combination)
Species Didacna ovata (Deshayes, 1838) † accepted as Pontalmyra ovata (Deshayes, 1838) † (unaccepted > superseded combination)
Species Didacna ovatula Pravoslavlev, 1939 † accepted as Didacna obliquetrigona Pravoslavlev, 1939 † (tentative subjective synonym)
Species Didacna oxypleura Davitashvili, 1930 † accepted as Pontalmyra oxypleura (Davitashvili, 1930) † (unaccepted > superseded combination)
Species Didacna paleotrigonoides Fedorov, 1953 † accepted as Didacna praetrigonoides paleotrigonoides Fedorov, 1953 † (unaccepted > superseded rank)
Species Didacna pallasi Pravoslavlev, 1939 † accepted as Didacna subpyramidata Pravoslavlev, 1939 † (subjective synonym)
Species Didacna paracrassa Pravoslavlev, 1939 † accepted as Didacna subcrassa subcrassa Pravoslavlev, 1939 † (subjective synonym)
Species Didacna parallela [sic] accepted as Didacna parallella Bogachev, 1932 (unaccepted > misspelling)
Species Didacna partschi (Mayer, 1871) † accepted as Pontalmyra partschi (Mayer, 1871) † (unaccepted > superseded combination)
Species Didacna paucicostata (Deshayes, 1838) † accepted as Pontalmyra kamyshburunensis (Kafanov, 1980) † (unaccepted > junior homonym, junior homonym of Cardium paucicostatum G. B. Sowerby II, 1834; Didacna (Pontalmyra) kamyshburunensis is a replacement name)
Species Didacna paucintermedia Andrusov, 1923 † accepted as Turcmena intermedia (Eichwald, 1841) † (unaccepted > junior subjective synonym)
Species Didacna pavlovi Livental, 1931 † accepted as Tschaudia tschaudae guriana (Livental, 1931) † (tentative subjective synonym)
Species Didacna perfecta Chelidze, 1947 † accepted as Pontalmyra perfecta (Chelidze, 1947) † (unaccepted > superseded combination)
Species Didacna pirsagatica Andrusov, 1909 † accepted as Pontalmyra pirsagatica (Andrusov, 1909) † (unaccepted > superseded combination)
Species Didacna planicostata (Deshayes, 1838) † accepted as Pontalmyra planicostata (Deshayes, 1838) † (unaccepted > superseded combination)
Species Didacna pleistopleura (Davitashvili, 1930) † accepted as Submonodacna pleistopleura (Davitashvili, 1930) † (unaccepted > superseded combination)
Species Didacna plesiochora (Davitashvili, 1930) † accepted as Pontalmyra plesiochora (Davitashvili, 1930) † (unaccepted > superseded combination)
Species Didacna plurintermedia Andrusov, 1923 † accepted as Turcmena intermedia (Eichwald, 1841) † (unaccepted > junior subjective synonym)
Species Didacna postcarditoides Nalivkin & Anisimov, 1914 † accepted as Didacna nalivkini Vassoevich, 1930 † (unaccepted > junior subjective synonym)
Species Didacna praepallasi Fedorov, 1999 † accepted as Didacna pseudocrassa pseudocrassa (Pavlov, 1925) † (unaccepted > junior subjective synonym)
Species Didacna praeprotracta Pravoslavlev, 1939 † accepted as Didacna obliquetrigona Pravoslavlev, 1939 † (tentative subjective synonym)
Species Didacna promultistriata (Jekelius, 1944) † accepted as Lymnocardium promultistriatum Jekelius, 1944 † (unaccepted > superseded combination)
Species Didacna prona Pravoslavlev, 1939 † accepted as Didacna grimmi Pravoslavlev, 1939 † (tentative subjective synonym)
Species Didacna pseudoprotracta Livental, 1931 † accepted as Didacna crassa (Eichwald, 1829) accepted as Didacna eichwaldi (Krynicki, 1837) (unaccepted > junior subjective synonym)
Species Didacna radiiferum (Andrusov, 1902) † accepted as Andrusovicardium radiiferum (Andrusov, 1902) † (unaccepted > superseded combination)
Species Didacna rarissima Stevanović, 1951 † accepted as Pontalmyra rarissima (Stevanović, 1951) † (unaccepted > superseded combination)
Species Didacna repens Taktakishvili, 1966 † accepted as Pontalmyra repens (Taktakishvili, 1966) † (unaccepted > superseded combination)
Species Didacna roseni Pravoslavlev, 1939 † accepted as Didacna subrudis Pravoslavlev, 1939 † accepted as Didacna grimmi Pravoslavlev, 1939 † (subjective synonym)
Species Didacna ruzhencevi Asadullaev, 1966 † accepted as Didacna charamica Fedorov, 1953 † (unaccepted > junior subjective synonym)
Species Didacna schemachinica Andrusov, 1909 † accepted as Pontalmyra schemachinica (Andrusov, 1909) † (unaccepted > superseded combination)
Species Didacna serrata Livental, 1931 † accepted as Tschaudia tschaudae guriana (Livental, 1931) † (tentative subjective synonym)
Species Didacna spratti (T. Fuchs, 1877) † accepted as Pontalmyra bollenensis (Mayer, 1871) † (unaccepted > junior subjective synonym, tentative junior subjective synonym)
Species Didacna squamosa G. F. Schneider, 1933 † accepted as Pontalmyra squamosa (G. F. Schneider, 1933) † (unaccepted > superseded combination)
Species Didacna squamulosa Stevanović, 1951 † accepted as Pontalmyra squamulosa (Stevanović, 1951) † (unaccepted > superseded combination)
Species Didacna subcarditoides Pravoslavlev, 1939 † accepted as Didacna subrudis Pravoslavlev, 1939 † accepted as Didacna grimmi Pravoslavlev, 1939 † (subjective synonym)
Species Didacna subcarinata (Deshayes, 1838) † accepted as Pontalmyra subcarinata (Deshayes, 1838) † (unaccepted > superseded combination)
Species Didacna subcrassatellata Andrusov, 1910 † accepted as Pontalmyra subcrassatellata (Andrusov, 1910) † (unaccepted > superseded combination)
Species Didacna subcrenulata Andrusov, 1910 † accepted as Pontalmyra subcrenulata (Andrusov, 1910) † (unaccepted > superseded combination)
Species Didacna subdepressa Andrusov, 1910 † accepted as Pontalmyra subdepressa (Andrusov, 1910) † (unaccepted > superseded combination)
Species Didacna subdeserta (Lörenthey, 1902) † accepted as Lymnocardium subdesertum Lörenthey, 1902 † (unaccepted > superseded combination)
Species Didacna subincerta Andrusov, 1910 † accepted as Pontalmyra subincerta (Andrusov, 1910) † (unaccepted > superseded combination)
Species Didacna subintermedia Andrusov, 1923 † accepted as Turcmena intermedia (Eichwald, 1841) † (unaccepted > junior subjective synonym)
Species Didacna submedeae Gabuniya, 1953 † accepted as Pontalmyra multistriata (Rousseau, 1842) † (unaccepted > junior subjective synonym)
Species Didacna subovalis Pravoslavlev, 1939 † (unaccepted, tentative junior subjective synonym)
Species Didacna suboxypleura Gabuniya, 1953 † (unaccepted > junior subjective synonym)
Species Didacna subpallasi Pravoslavlev, 1939 † (unaccepted, subjective synonym)
Species Didacna subparallella Bogachev & Gadzhiev, 1967 † (unaccepted, tentative junior subjective synonym)
Species Didacna subpaucicostata (R. Hoernes, 1874) † (unaccepted > junior subjective synonym)
Species Didacna subprotracta G. I. Popov, 1983 † (unaccepted, tentative junior subjective synonym)
Species Didacna subrudis Pravoslavlev, 1939 † (unaccepted, subjective synonym)
Species Didacna subsulcatina Andrusov, 1910 † (unaccepted, superseded rank and combination)
Species Didacna subsuscaltina [sic] † (unaccepted > misspelling)
Species Didacna sundica Andrusov, 1909 † (unaccepted > superseded combination)
Species Didacna triangula G. F. Schneider, 1933 † (unaccepted > superseded combination)
Species Didacna triquetra Livental, 1931 † (unaccepted > superseded combination)
Species Didacna turkmena Andrusov, 1923 † (unaccepted > superseded combination)
Species Didacna verrucosicostata Seninski, 1905 † (unaccepted, superseded rank and combination)
Species Didacna vicina Pravoslavlev, 1939 † (unaccepted, subjective synonym)
Species Didacna voskobojnikovi Andrusov, 1910 † (unaccepted > superseded combination)
Species Didacna zhukovi Fedorov, 1953 † (unaccepted > junior subjective synonym)
Subgenus Didacna (Didacna) Eichwald, 1838 (alternate representation)
Species Didacna bacuana Eberzin † (uncertain)
Species Didacna becenensis Andrusov, 1910 † (uncertain > taxon inquirendum)
Species Didacna bendovanica Gadzhiev, 1968 (uncertain > unassessed)
Species Didacna carinata Nevesskaja, 2007 (uncertain > taxon inquirendum)
Species Didacna celaeno Davitashvili, 1932 † (uncertain > taxon inquirendum)
Species Didacna charamica Ruzhentsev, 1928 † (uncertain > taxon inquirendum)
Species Didacna exlex Davitashvili, 1933 † (uncertain > taxon inquirendum)
Species Didacna karabugasica Bogachev † (uncertain)
Species Didacna latens Bogachev, 1932 † (uncertain > taxon inquirendum)
Species Didacna protracta (Eichwald, 1829) † (uncertain > taxon inquirendum)
Species Didacna pseudoovata Gillet, 1965 † (uncertain > taxon inquirendum)
Species Didacna pseudoschemachinica Gillet, 1961 † (uncertain > taxon inquirendum)
Species Didacna putcaradze Gadzhiev, 1968 (uncertain > unassessed)
Species Didacna puteana Bogachev, 1932 † (uncertain > taxon inquirendum)
Species Didacna roseni Ostroumov, 1912 (uncertain > taxon inquirendum)
Species Didacna agalarovae Bogachev & Gadzhiev, 1967 †
Species Didacna akschaena G. I. Popov, 1983 †
Species Didacna aligulica Nevesskaja, 2007 †
Species Didacna anomala Nevesskaja, 2007 †
Species Didacna artemiana Bogachev, 1932 †
Species Didacna baeri (Grimm, 1877)
Species Didacna baericrassa (Pavlov, 1925) †
Species Didacna barbotdemarnii (Grimm, 1877)
Species Didacna bergi Fedorov, 1948 †
Species Didacna borisphenica Nevesskaja, 1963 †
Species Didacna capellinii Gillet, 1963 †
Species Didacna carditoides Andrusov, 1910 †
Species Didacna catalaunica Gillet, 1959 †
Species Didacna catillus (Eichwald, 1841) †
Species Didacna celekenica Fedorov, 1948 †
Species Didacna charamica Fedorov, 1953 † (accepted > unreplaced junior homonym, invalid: junior homonym of Didacna charamica Ruzhentsev, 1928)
Species Didacna corpulenta Zhukov, 1933 †
Species Didacna cristata Bogachev, 1932 †
Species Didacna curta G. I. Popov, 1983 †
Species Didacna delenda Bogachev, 1932 †
Species Didacna dilatata Pravoslavlev, 1939 †
Species Didacna ebersini Fedorov, 1953 †
Species Didacna eichwaldi (Krynicki, 1837)
Species Didacna elongata Taner, 1974 † (accepted > unreplaced junior homonym)
Species Didacna emendata G. I. Popov, 1983 †
Species Didacna eulachia Fedorov, 1948 †
Species Didacna fedorovi Nevesskaja, 2007 †
Species Didacna fuchsi (Philippson, 1890) † (accepted > unreplaced junior homonym, junior homonym of Cardium fuchsi Capellini, 1873 and Cardium fuchsi Neumayr, 1875)
Species Didacna gilgilica Nevesskaja, 2007 †
Species Didacna golubyatnikovi Yanina & Svitoch, 1987 †
Species Didacna grimmi Pravoslavlev, 1939 †
Species Didacna gurganica Vekilov, 1969 †
Species Didacna guriensis Nevesskaja, 1963 †
Species Didacna hospes Vekilov, 1969 †
Species Didacna hyrcana G. I. Popov, 1983 † (accepted > unreplaced junior homonym)
Species Didacna itilica G. I. Popov, 1983 †
Species Didacna kolesnikovi Fedorov, 1953 †
Species Didacna kovalevskii Bogachev, 1932 †
Species Didacna laodicaeensis (Oppenheim, 1919) †
Species Didacna lectosis (Fontannes, 1882) †
Species Didacna lindleyi Fedorov, 1948 †
Species Didacna lissitzyni G. I. Popov, 1983 †
Species Didacna longipes (Grimm, 1877)
Species Didacna mingetschaurica Vekilov, 1969 †
Species Didacna mischovdagica Vekilov, 1969 †
Species Didacna miussica G. I. Popov, 1983 †
Species Didacna monodacnoides G. I. Popov, 1983 † (accepted > unreplaced junior homonym)
Species Didacna nalivkini Vassoevich, 1930 †
Species Didacna obliquetrigona Pravoslavlev, 1939 †
Species Didacna obunca G. I. Popov, 1983 †
Species Didacna olla Nevesskaja, 1963 †
Species Didacna ovalis Yanina & Svitoch, 1987 †
Species Didacna ovatocrassa Pravoslavlev, 1939 †
Species Didacna parallella Bogachev, 1932
Species Didacna parvula Nalivkin, 1915 †
Species Didacna phrygica (Oppenheim, 1919) †
Species Didacna plana Nevesskaja, 1958 †
Species Didacna pontocaspia (Pavlov, 1925) †
Species Didacna porsugelica Nevesskaja, 1958 †
Species Didacna praetrigonoides Nalivkin & Anisimov, 1914 †
Species Didacna pravoslavlevi Fedorov, 1948 †
Species Didacna profundicola Logvinenko & Starobogatov, 1966
Species Didacna protracta (Eichwald, 1841)
Species Didacna pseudocrassa (Pavlov, 1925) †
Species Didacna pseudoplanicostata Gillet, 1965 †
Species Didacna pseudosulcatina Gillet, 1965 †
Species Didacna pyramidata (Grimm, 1877)
Species Didacna raricostata G. I. Popov, 1983 †
Species Didacna rudis Nalivkin, 1915 †
Species Didacna schirvanica Vekilov & Asadullaev, 1964 †
Species Didacna schuraosenica Svitoch & Chernova, 1978 †
Species Didacna spondylopsis (Almera & Bofill y Poch, 1894) †
Species Didacna subartemiana Pravoslavlev, 1939 †
Species Didacna subcatillus Andrusov, 1910 †
Species Didacna subcrassa Pravoslavlev, 1939 †
Species Didacna subimbricata Pravoslavlev, 1939 †
Species Didacna sublongipes Pravoslavlev, 1939 †
Species Didacna subpyramidata Pravoslavlev, 1939 †
Species Didacna subquadrata Nevesskaja, 2007 † (accepted > unreplaced junior homonym, junior homonym of Didacna grimmi var. subquadrata Pravoslavlev, 1939)
Species Didacna subtrigonula Nevesskaja, 2007 †
Species Didacna surachanica Andrusov, 1910 †
Species Didacna symmetrica G. I. Popov, 1983 †
Species Didacna tamanica Nevesskaja, 1963 †
Species Didacna tanaitica G. I. Popov, 1983 †
Species Didacna trigonoides (Pallas, 1771)
Species Didacna trigonula K. A. Ali-Zade, Vekilov & Geivandova, 1957 †
Species Didacna turkmenica Nevesskaja, 2007 †
Species Didacna ultima G. I. Popov, 1983 †
Species Didacna umbonata Ebersin, 1958 †
Species Didacna vulgaris Andrusov, 1910 †
Subgenus Didacna (Crassadacna) Eberzin, 1962 † accepted as Pontalmyra Stefanescu, 1896 † (unaccepted > junior subjective synonym)
» Species Didacna (Crassadacna) crassatellata (Deshayes, 1838) † accepted as Pontalmyra crassatellata (Deshayes, 1838) † (unaccepted > superseded combination, subgenus is a junior synonym)
» Species Didacna (Crassadacna) portaferrica Papaianopol & Marinescu, 1975 † accepted as Pontalmyra portaferrica (Papaianopol & Marinescu, 1975) † (unaccepted > superseded combination, subgenus is a junior synonym)
Subgenus Didacna (Pontalmyra) Stefanescu, 1896 † accepted as Pontalmyra Stefanescu, 1896 † (unaccepted > superseded rank)» Species Didacna (Crassadacna) portaferrica Papaianopol & Marinescu, 1975 † accepted as Pontalmyra portaferrica (Papaianopol & Marinescu, 1975) † (unaccepted > superseded combination, subgenus is a junior synonym)
» Species Didacna (Pontalmyra) cismontana Eberzin, 1962 † accepted as Pontalmyra cismontana (Eberzin, 1962) † (unaccepted > superseded combination)
» Species Didacna (Pontalmyra) convexa Taner, 1974 † accepted as Pontalmyra convexa (Taner, 1974) † (unaccepted > superseded combination)
» Species Didacna (Pontalmyra) falconensis Papaianopol, 1974 † accepted as Pontalmyra subincerta (Andrusov, 1910) † (unaccepted > junior subjective synonym)
» Species Didacna (Pontalmyra) georgiana Eberzin, 1962 † accepted as Pontalmyra georgiana (Eberzin, 1962) † (unaccepted > superseded combination)
» Species Didacna (Pontalmyra) kamyshburunensis Kafanov, 1980 † accepted as Pontalmyra kamyshburunensis (Kafanov, 1980) † (unaccepted > superseded combination)
» Species Didacna (Pontalmyra) kubanica Eberzin, 1962 † accepted as Pontalmyra kubanica (Eberzin, 1962) † (unaccepted > superseded combination)
» Species Didacna (Pontalmyra) occidentalis Eberzin, 1962 † accepted as Pontalmyra occidentalis (Eberzin, 1962) † (unaccepted > superseded combination)
» Species Didacna (Pontalmyra) planicostata (Deshayes, 1838) † accepted as Pontalmyra planicostata (Deshayes, 1838) † (unaccepted > superseded combination)
» Species Didacna (Pontalmyra) praecrenulata Eberzin, 1962 † accepted as Pontalmyra praecrenulata (Eberzin, 1962) † (unaccepted > superseded combination)
» Species Didacna (Pontalmyra) praekarpinskyi Eberzin, 1962 † accepted as Pontalmyra karpinskyi (Andrusov, 1910) † (unaccepted > junior subjective synonym)
» Species Didacna (Pontalmyra) rostriformis Taner, 1974 † accepted as Didacna phrygica (Oppenheim, 1919) † (unaccepted > junior subjective synonym)
» Species Didacna (Pontalmyra) savii (Capellini, 1880) † accepted as Pontalmyra savii (Capellini, 1880) † (unaccepted > superseded combination)
» Species Didacna (Pontalmyra) tosunlari Taner, 1974 † accepted as Didacna elongata Taner, 1974 † (subjective synonym)
» Species Didacna (Pontalmyra) transcaspica Eberzin, 1962 † accepted as Pontalmyra transcaspica (Eberzin, 1962) † (unaccepted > superseded combination)
» Species Didacna (Pontalmyra) elongata Taner, 1974 † represented as Didacna elongata Taner, 1974 †
Species Didacna agolarovae [sic] † accepted as Didacna agalarovae Bogachev & Gadzhiev, 1967 † (unaccepted > misspelling)» Species Didacna (Pontalmyra) convexa Taner, 1974 † accepted as Pontalmyra convexa (Taner, 1974) † (unaccepted > superseded combination)
» Species Didacna (Pontalmyra) falconensis Papaianopol, 1974 † accepted as Pontalmyra subincerta (Andrusov, 1910) † (unaccepted > junior subjective synonym)
» Species Didacna (Pontalmyra) georgiana Eberzin, 1962 † accepted as Pontalmyra georgiana (Eberzin, 1962) † (unaccepted > superseded combination)
» Species Didacna (Pontalmyra) kamyshburunensis Kafanov, 1980 † accepted as Pontalmyra kamyshburunensis (Kafanov, 1980) † (unaccepted > superseded combination)
» Species Didacna (Pontalmyra) kubanica Eberzin, 1962 † accepted as Pontalmyra kubanica (Eberzin, 1962) † (unaccepted > superseded combination)
» Species Didacna (Pontalmyra) occidentalis Eberzin, 1962 † accepted as Pontalmyra occidentalis (Eberzin, 1962) † (unaccepted > superseded combination)
» Species Didacna (Pontalmyra) planicostata (Deshayes, 1838) † accepted as Pontalmyra planicostata (Deshayes, 1838) † (unaccepted > superseded combination)
» Species Didacna (Pontalmyra) praecrenulata Eberzin, 1962 † accepted as Pontalmyra praecrenulata (Eberzin, 1962) † (unaccepted > superseded combination)
» Species Didacna (Pontalmyra) praekarpinskyi Eberzin, 1962 † accepted as Pontalmyra karpinskyi (Andrusov, 1910) † (unaccepted > junior subjective synonym)
» Species Didacna (Pontalmyra) rostriformis Taner, 1974 † accepted as Didacna phrygica (Oppenheim, 1919) † (unaccepted > junior subjective synonym)
» Species Didacna (Pontalmyra) savii (Capellini, 1880) † accepted as Pontalmyra savii (Capellini, 1880) † (unaccepted > superseded combination)
» Species Didacna (Pontalmyra) tosunlari Taner, 1974 † accepted as Didacna elongata Taner, 1974 † (subjective synonym)
» Species Didacna (Pontalmyra) transcaspica Eberzin, 1962 † accepted as Pontalmyra transcaspica (Eberzin, 1962) † (unaccepted > superseded combination)
» Species Didacna (Pontalmyra) elongata Taner, 1974 † represented as Didacna elongata Taner, 1974 †
Species Didacna alata Bogachev & Gadzhiev, 1967 † accepted as Didacna eulachia Fedorov, 1948 † (tentative junior subjective synonym)
Species Didacna alibajramliensis Gadzhiev, 1966 † accepted as Didacna baeri (Grimm, 1877) (unaccepted > junior subjective synonym)
Species Didacna alibajramlinica Vekilov, 1969 † accepted as Didacna carditoides Andrusov, 1910 † (unaccepted > junior subjective synonym)
Species Didacna andrusovi Gude, 1913 † accepted as Pontalmyra ovata (Deshayes, 1838) † (unnecessary replacement name; junior synonym)
Species Didacna annosa Chelidze, 1947 † accepted as Pontalmyra annosa (Chelidze, 1947) † (unaccepted > superseded combination)
Species Didacna apscheronica Geivandova, 1956 † accepted as Didacna delenda Bogachev, 1932 † (unaccepted > junior subjective synonym, tentative junior subjective synonym)
Species Didacna atschistskalensis Gabuniya, 1953 † accepted as Pontalmyra subcrenulata (Andrusov, 1910) † (unaccepted > junior subjective synonym)
Species Didacna bogatschevi Pravoslavlev, 1939 † accepted as Didacna subcrassa subcrassa Pravoslavlev, 1939 † (tentative subjective synonym)
Species Didacna bollenensis (Mayer, 1871) † accepted as Pontalmyra bollenensis (Mayer, 1871) † (unaccepted > superseded combination)
Species Didacna catilloides Pravoslavlev, 1939 † accepted as Didacna grimmi Pravoslavlev, 1939 † (subjective synonym)
Species Didacna chiae (Almera, 1894) † accepted as Pontalmyra incerta chiae (Almera, 1894) † (superseded rank and combination)
Species Didacna colossea Asadullaev, 1965 † accepted as Didacna pravoslavlevi pravoslavlevi Fedorov, 1948 † (unaccepted > junior subjective synonym)
Species Didacna convexa Geivandova, 1956 † accepted as Didacna umbonata Ebersin, 1958 † (unaccepted > junior subjective synonym)
Species Didacna crassa (Eichwald, 1829) accepted as Didacna eichwaldi (Krynicki, 1837)
Species Didacna crassatellata (Deshayes, 1838) † accepted as Pontalmyra crassatellata (Deshayes, 1838) † (unaccepted > superseded combination)
Species Didacna crassatelloides Andrusov, 1909 † accepted as Pontalmyra crassatelloides (Andrusov, 1909) † (unaccepted > superseded combination)
Species Didacna deltastriata Livental, 1931 † accepted as Tschaudia tschaudae guriana (Livental, 1931) † (tentative subjective synonym)
Species Didacna depereti Andrusov, 1909 † accepted as Pontalmyra depereti (Andrusov, 1909) † (unaccepted > superseded combination)
Species Didacna deserta (Stoliczka, 1862) † accepted as Pontalmyra deserta (Stoliczka, 1862) † (unaccepted > superseded combination)
Species Didacna digressa Livental, 1931 † accepted as Tschaudia digressa (Livental, 1931) † (unaccepted > superseded combination)
Species Didacna elongatoovata Pravoslavlev, 1939 † accepted as Didacna obliquetrigona Pravoslavlev, 1939 † (tentative subjective synonym)
Species Didacna frequens Pravoslavlev, 1939 † accepted as Didacna subrudis Pravoslavlev, 1939 † accepted as Didacna grimmi Pravoslavlev, 1939 † (subjective synonym)
Species Didacna gibba Pravoslavlev, 1939 † accepted as Didacna subrudis Pravoslavlev, 1939 † accepted as Didacna grimmi Pravoslavlev, 1939 † (tentative subjective synonym)
Species Didacna gmelini Pravoslavlev, 1939 † accepted as Didacna subcrassa subcrassa Pravoslavlev, 1939 † (subjective synonym)
Species Didacna guriana Livental, 1931 † accepted as Tschaudia tschaudae guriana (Livental, 1931) † (superseded rank and combination)
Species Didacna hebes Pravoslavlev, 1939 † accepted as Didacna subcrassa subcrassa Pravoslavlev, 1939 † (tentative subjective synonym)
Species Didacna hians Pravoslavlev, 1939 † accepted as Didacna obliquetrigona Pravoslavlev, 1939 † (tentative subjective synonym)
Species Didacna hyrcana Andrusov, 1923 † accepted as Turcmena intermedia (Eichwald, 1841) † (unaccepted > junior subjective synonym)
Species Didacna incerta (Deshayes, 1838) † accepted as Pontalmyra incerta (Deshayes, 1838) † (unaccepted > superseded combination)
Species Didacna incrassa Pravoslavlev, 1939 † accepted as Didacna subcrassa subcrassa Pravoslavlev, 1939 † (subjective synonym)
Species Didacna incrassata Bogachev, 1932 † accepted as Didacna nalivkini Vassoevich, 1930 † (unaccepted > junior subjective synonym)
Species Didacna infidelis "Taktakishvili, 1962" † (unaccepted > nomen nudum)
Species Didacna janischevckii Geivandova, 1956 † accepted as Didacna artemiana Bogachev, 1932 † (unaccepted > junior subjective synonym)
Species Didacna karelini Fedorov, 1953 † accepted as Didacna pravoslavlevi karelini Fedorov, 1953 † (unaccepted > superseded rank)
Species Didacna karpevitschae Bogachev & Gadzhiev, 1967 † accepted as Didacna porsugelica Nevesskaja, 1958 † (tentative junior subjective synonym)
Species Didacna karpinskyi Andrusov, 1910 † accepted as Pontalmyra karpinskyi (Andrusov, 1910) † (unaccepted > superseded combination)
Species Didacna knipovitshi Bogachev & Gadzhiev, 1967 † accepted as Didacna eulachia Fedorov, 1948 † (tentative junior subjective synonym)
Species Didacna kurovdagica Vekilov, 1969 † accepted as Didacna charamica Fedorov, 1953 † (unaccepted > junior subjective synonym)
Species Didacna laskarevi Andrusov, 1909 † accepted as Pontalmyra laskarevi (Andrusov, 1909) † (unaccepted > superseded combination)
Species Didacna lindeyi [sic] † accepted as Didacna lindleyi Fedorov, 1948 † (unaccepted > misspelling)
Species Didacna lintriculus Pravoslavlev, 1939 † accepted as Didacna subrudis Pravoslavlev, 1939 † accepted as Didacna grimmi Pravoslavlev, 1939 † (subjective synonym)
Species Didacna loerentheyi Andrusov, 1923 † accepted as Turcmena loerentheyi (Andrusov, 1923) † (unaccepted > superseded combination)
Species Didacna longintermedia Andrusov, 1923 † accepted as Turcmena intermedia (Eichwald, 1841) † (unaccepted > junior subjective synonym)
Species Didacna lutrae Andrusov, 1909 † accepted as Pontalmyra incerta lutrae (Andrusov, 1909) † (superseded rank and combination)
Species Didacna medeae Davitashvili, 1932 † accepted as Pontalmyra medeae (Davitashvili, 1932) † (unaccepted > superseded combination)
Species Didacna megrelica Taktakishvili, 1966 † accepted as Pontalmyra megrelica (Taktakishvili, 1966) † (unaccepted > superseded combination)
Species Didacna meissarensis Andrusov, 1909 † accepted as Pontalmyra meissarensis (Andrusov, 1909) † (unaccepted > superseded combination)
Species Didacna multintermedia Andrusov, 1923 † accepted as Turcmena intermedia (Eichwald, 1841) † (unaccepted > junior subjective synonym)
Species Didacna multistriata (Rousseau, 1842) † accepted as Pontalmyra multistriata (Rousseau, 1842) † (unaccepted > superseded combination)
Species Didacna mutabilis G. F. Schneider, 1933 † accepted as Pontalmyra mutabilis (G. F. Schneider, 1933) † (unaccepted > superseded combination)
Species Didacna naviculata Pravoslavlev, 1939 † accepted as Didacna grimmi Pravoslavlev, 1939 † (subjective synonym)
Species Didacna novarossica (Barbot de Marny, 1869) † accepted as Pontalmyra novarossica (Barbot de Marny, 1869) † (unaccepted > superseded combination)
Species Didacna oriovacensis (Neumayr, 1875) † accepted as Plagiodacna carinata (Deshayes, 1838) † accepted as Plagiodacna angulosa (Deshayes, 1857) † (unaccepted > junior subjective synonym)
Species Didacna ostroumovi Pravoslavlev, 1939 † accepted as Didacna subrudis Pravoslavlev, 1939 † accepted as Didacna grimmi Pravoslavlev, 1939 † (subjective synonym)
Species Didacna otiophora (Brusina, 1884) † accepted as Pontalmyra otiophora (Brusina, 1884) † (unaccepted > superseded combination)
Species Didacna ovata (Deshayes, 1838) † accepted as Pontalmyra ovata (Deshayes, 1838) † (unaccepted > superseded combination)
Species Didacna ovatula Pravoslavlev, 1939 † accepted as Didacna obliquetrigona Pravoslavlev, 1939 † (tentative subjective synonym)
Species Didacna oxypleura Davitashvili, 1930 † accepted as Pontalmyra oxypleura (Davitashvili, 1930) † (unaccepted > superseded combination)
Species Didacna paleotrigonoides Fedorov, 1953 † accepted as Didacna praetrigonoides paleotrigonoides Fedorov, 1953 † (unaccepted > superseded rank)
Species Didacna pallasi Pravoslavlev, 1939 † accepted as Didacna subpyramidata Pravoslavlev, 1939 † (subjective synonym)
Species Didacna paracrassa Pravoslavlev, 1939 † accepted as Didacna subcrassa subcrassa Pravoslavlev, 1939 † (subjective synonym)
Species Didacna parallela [sic] accepted as Didacna parallella Bogachev, 1932 (unaccepted > misspelling)
Species Didacna partschi (Mayer, 1871) † accepted as Pontalmyra partschi (Mayer, 1871) † (unaccepted > superseded combination)
Species Didacna paucicostata (Deshayes, 1838) † accepted as Pontalmyra kamyshburunensis (Kafanov, 1980) † (unaccepted > junior homonym, junior homonym of Cardium paucicostatum G. B. Sowerby II, 1834; Didacna (Pontalmyra) kamyshburunensis is a replacement name)
Species Didacna paucintermedia Andrusov, 1923 † accepted as Turcmena intermedia (Eichwald, 1841) † (unaccepted > junior subjective synonym)
Species Didacna pavlovi Livental, 1931 † accepted as Tschaudia tschaudae guriana (Livental, 1931) † (tentative subjective synonym)
Species Didacna perfecta Chelidze, 1947 † accepted as Pontalmyra perfecta (Chelidze, 1947) † (unaccepted > superseded combination)
Species Didacna pirsagatica Andrusov, 1909 † accepted as Pontalmyra pirsagatica (Andrusov, 1909) † (unaccepted > superseded combination)
Species Didacna planicostata (Deshayes, 1838) † accepted as Pontalmyra planicostata (Deshayes, 1838) † (unaccepted > superseded combination)
Species Didacna pleistopleura (Davitashvili, 1930) † accepted as Submonodacna pleistopleura (Davitashvili, 1930) † (unaccepted > superseded combination)
Species Didacna plesiochora (Davitashvili, 1930) † accepted as Pontalmyra plesiochora (Davitashvili, 1930) † (unaccepted > superseded combination)
Species Didacna plurintermedia Andrusov, 1923 † accepted as Turcmena intermedia (Eichwald, 1841) † (unaccepted > junior subjective synonym)
Species Didacna postcarditoides Nalivkin & Anisimov, 1914 † accepted as Didacna nalivkini Vassoevich, 1930 † (unaccepted > junior subjective synonym)
Species Didacna praepallasi Fedorov, 1999 † accepted as Didacna pseudocrassa pseudocrassa (Pavlov, 1925) † (unaccepted > junior subjective synonym)
Species Didacna praeprotracta Pravoslavlev, 1939 † accepted as Didacna obliquetrigona Pravoslavlev, 1939 † (tentative subjective synonym)
Species Didacna promultistriata (Jekelius, 1944) † accepted as Lymnocardium promultistriatum Jekelius, 1944 † (unaccepted > superseded combination)
Species Didacna prona Pravoslavlev, 1939 † accepted as Didacna grimmi Pravoslavlev, 1939 † (tentative subjective synonym)
Species Didacna pseudoprotracta Livental, 1931 † accepted as Didacna crassa (Eichwald, 1829) accepted as Didacna eichwaldi (Krynicki, 1837) (unaccepted > junior subjective synonym)
Species Didacna radiiferum (Andrusov, 1902) † accepted as Andrusovicardium radiiferum (Andrusov, 1902) † (unaccepted > superseded combination)
Species Didacna rarissima Stevanović, 1951 † accepted as Pontalmyra rarissima (Stevanović, 1951) † (unaccepted > superseded combination)
Species Didacna repens Taktakishvili, 1966 † accepted as Pontalmyra repens (Taktakishvili, 1966) † (unaccepted > superseded combination)
Species Didacna roseni Pravoslavlev, 1939 † accepted as Didacna subrudis Pravoslavlev, 1939 † accepted as Didacna grimmi Pravoslavlev, 1939 † (subjective synonym)
Species Didacna ruzhencevi Asadullaev, 1966 † accepted as Didacna charamica Fedorov, 1953 † (unaccepted > junior subjective synonym)
Species Didacna schemachinica Andrusov, 1909 † accepted as Pontalmyra schemachinica (Andrusov, 1909) † (unaccepted > superseded combination)
Species Didacna serrata Livental, 1931 † accepted as Tschaudia tschaudae guriana (Livental, 1931) † (tentative subjective synonym)
Species Didacna spratti (T. Fuchs, 1877) † accepted as Pontalmyra bollenensis (Mayer, 1871) † (unaccepted > junior subjective synonym, tentative junior subjective synonym)
Species Didacna squamosa G. F. Schneider, 1933 † accepted as Pontalmyra squamosa (G. F. Schneider, 1933) † (unaccepted > superseded combination)
Species Didacna squamulosa Stevanović, 1951 † accepted as Pontalmyra squamulosa (Stevanović, 1951) † (unaccepted > superseded combination)
Species Didacna subcarditoides Pravoslavlev, 1939 † accepted as Didacna subrudis Pravoslavlev, 1939 † accepted as Didacna grimmi Pravoslavlev, 1939 † (subjective synonym)
Species Didacna subcarinata (Deshayes, 1838) † accepted as Pontalmyra subcarinata (Deshayes, 1838) † (unaccepted > superseded combination)
Species Didacna subcrassatellata Andrusov, 1910 † accepted as Pontalmyra subcrassatellata (Andrusov, 1910) † (unaccepted > superseded combination)
Species Didacna subcrenulata Andrusov, 1910 † accepted as Pontalmyra subcrenulata (Andrusov, 1910) † (unaccepted > superseded combination)
Species Didacna subdepressa Andrusov, 1910 † accepted as Pontalmyra subdepressa (Andrusov, 1910) † (unaccepted > superseded combination)
Species Didacna subdeserta (Lörenthey, 1902) † accepted as Lymnocardium subdesertum Lörenthey, 1902 † (unaccepted > superseded combination)
Species Didacna subincerta Andrusov, 1910 † accepted as Pontalmyra subincerta (Andrusov, 1910) † (unaccepted > superseded combination)
Species Didacna subintermedia Andrusov, 1923 † accepted as Turcmena intermedia (Eichwald, 1841) † (unaccepted > junior subjective synonym)
Species Didacna submedeae Gabuniya, 1953 † accepted as Pontalmyra multistriata (Rousseau, 1842) † (unaccepted > junior subjective synonym)
Species Didacna subovalis Pravoslavlev, 1939 † (unaccepted, tentative junior subjective synonym)
Species Didacna suboxypleura Gabuniya, 1953 † (unaccepted > junior subjective synonym)
Species Didacna subpallasi Pravoslavlev, 1939 † (unaccepted, subjective synonym)
Species Didacna subparallella Bogachev & Gadzhiev, 1967 † (unaccepted, tentative junior subjective synonym)
Species Didacna subpaucicostata (R. Hoernes, 1874) † (unaccepted > junior subjective synonym)
Species Didacna subprotracta G. I. Popov, 1983 † (unaccepted, tentative junior subjective synonym)
Species Didacna subrudis Pravoslavlev, 1939 † (unaccepted, subjective synonym)
Species Didacna subsulcatina Andrusov, 1910 † (unaccepted, superseded rank and combination)
Species Didacna subsuscaltina [sic] † (unaccepted > misspelling)
Species Didacna sundica Andrusov, 1909 † (unaccepted > superseded combination)
Species Didacna triangula G. F. Schneider, 1933 † (unaccepted > superseded combination)
Species Didacna triquetra Livental, 1931 † (unaccepted > superseded combination)
Species Didacna turkmena Andrusov, 1923 † (unaccepted > superseded combination)
Species Didacna verrucosicostata Seninski, 1905 † (unaccepted, superseded rank and combination)
Species Didacna vicina Pravoslavlev, 1939 † (unaccepted, subjective synonym)
Species Didacna voskobojnikovi Andrusov, 1910 † (unaccepted > superseded combination)
Species Didacna zhukovi Fedorov, 1953 † (unaccepted > junior subjective synonym)
Subgenus Didacna (Didacna) Eichwald, 1838 (alternate representation)
» Species Didacna (Didacna) budmani (Brusina, 1884) † accepted as Pontalmyra budmani (Brusina, 1884) † (unaccepted > superseded combination)
Species Didacna bacuana Eberzin † (uncertain)
Species Didacna becenensis Andrusov, 1910 † (uncertain > taxon inquirendum)
Species Didacna bendovanica Gadzhiev, 1968 (uncertain > unassessed)
Species Didacna carinata Nevesskaja, 2007 (uncertain > taxon inquirendum)
Species Didacna celaeno Davitashvili, 1932 † (uncertain > taxon inquirendum)
Species Didacna charamica Ruzhentsev, 1928 † (uncertain > taxon inquirendum)
Species Didacna exlex Davitashvili, 1933 † (uncertain > taxon inquirendum)
Species Didacna karabugasica Bogachev † (uncertain)
Species Didacna latens Bogachev, 1932 † (uncertain > taxon inquirendum)
Species Didacna protracta (Eichwald, 1829) † (uncertain > taxon inquirendum)
Species Didacna pseudoovata Gillet, 1965 † (uncertain > taxon inquirendum)
Species Didacna pseudoschemachinica Gillet, 1961 † (uncertain > taxon inquirendum)
Species Didacna putcaradze Gadzhiev, 1968 (uncertain > unassessed)
Species Didacna puteana Bogachev, 1932 † (uncertain > taxon inquirendum)
Species Didacna roseni Ostroumov, 1912 (uncertain > taxon inquirendum)
recent + fossil
feminine
Eichwald, E. (1838). Faunae Caspii Maris primitiae. <em>Bulletin de la Société Impériale des Naturalistes de Moscou.</em> 11(2): 125-174., available online at https://www.biodiversitylibrary.org/page/41342125
page(s): 166 [details]
page(s): 166 [details]
MolluscaBase eds. (2022). MolluscaBase. Didacna Eichwald, 1838. Accessed at: https://molluscabase.org/aphia.php?p=taxdetails&id=381889 on 2023-03-24
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original description
Eichwald, E. (1838). Faunae Caspii Maris primitiae. <em>Bulletin de la Société Impériale des Naturalistes de Moscou.</em> 11(2): 125-174., available online at https://www.biodiversitylibrary.org/page/41342125
page(s): 166 [details]
original description (of Cardium (Pseudocardita) Oppenheim, 1919 †) Oppenheim, P. (1919). Das Neogen in Kleinasien. <em>Zeitschrift der Deutschen Geologischen Gesellschaft.</em> 70, 1–210, 12 pls.
page(s): 136-138 [details]
basis of record Poorten, J.J. ter, 2005. Outline of a systematic index - Recent Cardiidae (Lamarck, 1809). VISAYA net. (Updated 2009 for WoRMS), available online at http://www.conchology.be/en/shelltopics/visaya-net/date.php?year=2005 [details]
additional source Bogutskaya, N.G.; Kijashko, P.V.; Naseka, A.M.; Orlova, M.I. (2013). Opredelitel' ryb i bespozvonochnykh Kaspiyskogo morya. T. 1. Ryby i mollyuski [ldentification keys for fish and invertebrates. Volume 1. Fish and molluscs]. КМК Scientific Press Ltd., St. Petersburg/Moscow. 543 pp., 56 pl. [In Russian]. [details] Available for editors
[request]
page(s): 166 [details]
original description (of Cardium (Pseudocardita) Oppenheim, 1919 †) Oppenheim, P. (1919). Das Neogen in Kleinasien. <em>Zeitschrift der Deutschen Geologischen Gesellschaft.</em> 70, 1–210, 12 pls.
page(s): 136-138 [details]
basis of record Poorten, J.J. ter, 2005. Outline of a systematic index - Recent Cardiidae (Lamarck, 1809). VISAYA net. (Updated 2009 for WoRMS), available online at http://www.conchology.be/en/shelltopics/visaya-net/date.php?year=2005 [details]
additional source Bogutskaya, N.G.; Kijashko, P.V.; Naseka, A.M.; Orlova, M.I. (2013). Opredelitel' ryb i bespozvonochnykh Kaspiyskogo morya. T. 1. Ryby i mollyuski [ldentification keys for fish and invertebrates. Volume 1. Fish and molluscs]. КМК Scientific Press Ltd., St. Petersburg/Moscow. 543 pp., 56 pl. [In Russian]. [details] Available for editors
[request] 