There are 14 species in this genus, divided among 3 subgenera. • †
Orcula alvarium Schlickum, 1975 •
Orcula austriaca Zimmermann 1932 •
Orcula conica (Rossmässler 1837) •
Orcula dolium (Draparnaud 1801) •
Orcula fuchsi Zimmermann 1931 •
Orcula gularis (Rossmässler 1837) •
Orcula gularis gularis (Rossmässler 1837) •
Orcula gularis oreina Ehrmann 1933 •
Orcula imbricata (Jickeli, 1873) •
Orcula jetschini (Kimakowicz 1883) • †
Orcula oviformis (Michaud, 1838) •
Orcula pseudodolium A. J. Wagner 1912 •
Orcula restituta (Westerlund 1887) •
Orcula schmidti (Küster 1843) •
Orcula (Illyriobanatica) schmidtii schmidtii (Küster, 1843) •
Orcula schmidti transversalis (Westerlund 1894) •
Orcula spoliata (Rossmässler 1837) •
Orcula tolminensis A. J. Wagner 1912 •
Orcula tomlini Connolly, 1931 •
Orcula wagneri Sturany 1914 •
Orcula wagneri wagneri Sturany 1914 •
Orcula wagneri ljubetenensis Sturany 1914 •
Orcula zilchi Urbański, 1960 ;Species brought into synonymy: •
Orcula bulgarica P. Hesse, 1915: synonym of
Orculella bulgarica (P. Hesse, 1915) (original combination) •
Orcula corrugata Locard, 1894: synonym of
Abida cylindrica (Michaud, 1829) (junior synonym) •
Orcula cylindriformis Locard, 1894: synonym of
Abida cylindrica (Michaud, 1829) (junior synonym) •
Orcula dobrogica (Grossu 1986): synonym of
Sphyradium doliolum (Bruguière, 1792) (junior synonym) •
Orcula doliolum (Bruguière, 1792): synonym of
Sphyradium doliolum (Bruguière, 1792) (unaccepted combination) •
Orcula driana Kaltenbach, 1943: synonym of
Orculella driana (Kaltenbach, 1943) (original combination) •
Orcula falkneri Hausdorf, 1995 †: synonym of
Nordsieckula falkneri (Hausdorf, 1995) † (new combination) •
Orcula multidentata Kaltenbach, 1943: synonym of
Orculella multidentata (Kaltenbach, 1943) (original combination) •
Orcula plateaui (Cossmann, 1889) †: synonym of
Orcula oviformis (Michaud, 1838) † (junior synonym) •
Orcula pollonerae (Pini 1884): synonym of
Orcula spoliata (Rossmässler 1837) •
Orcula scyphus (L. Pfeiffer, 1848): synonym of
Schileykula scyphus (L. Pfeiffer, 1848) (unaccepted combination) •
Orcula striata Kaltenbach, 1943: synonym of
Orculella striata (Kaltenbach, 1943) (original combination) •
Orcula subconica (F. Sandberger, 1858) †: synonym of
Nordsieckula subconica (F. Sandberger, 1858) † (new combination) •
Orcula tingitana Pallary, 1918: synonym of
Orculella tingitana (Pallary, 1918) (original combination) •
Orcula tomlini Connolly, 1931: synonym of
Orculella tomlini (Connolly, 1931) (basionym) •
Orcula tripolitana Kaltenbach, 1943: synonym of
Orculella templorum tripolitana (Kaltenbach, 1943) (basionym) •
Orcula turcica Letourneux, 1884: synonym of
Orculella critica (L. Pfeiffer, 1856) (junior synonym) ==References==