Diodora is a genus of small to medium-sized keyhole limpet in the family Fissurellidae.
Life habits
Like all other fissurellids, Diodora species are herbivores, and use the radula to scrape algae from rocks. An exception is D. apertura, which grazes on sponges such as Hymeniacidon.
Water for respiration and excretion is drawn in under the edge of the shell and exits through the "keyhole" at or near the apex.
Species
Species in this genus include:
Diodora aguayoi Pérez Farfante, 1943
Diodora alta (Adams, 1852) Diodora arcuata (Sowerby, 1862) Diodora arnoldi McLean, 1966 Diodora aspera (Rathke, 1833) Diodora australis (Krauss, 1848) Diodora benguelensis (Dunker, 1846) Diodora bermudensis (Dall & Bartsch, 1911) Diodora bollonsi (Oliver, 1915) Diodora calyculata (Sowerby, 1823) Diodora canariensis Verstraeten & Naef, 2007 Diodora candida (Sowerby, 1835) Diodora cayenensis (Lamarck, 1822) Diodora corbicula (Sowerby, 1862) Diodora cruciata (Gould, 1846) Diodora crucifera Pilsbry, 1890 Diodora delicata (Smith, 1899) Diodora demartiniorum Buzzurro & Russo, 2004 Diodora digueti (Mabille, 1895) Diodora dorsata (Monterosato, 1878) Diodora dysoni (Reeve, 1850) Diodora edwardsi (Dautzenberg & H. Fischer, 1896) Diodora elevata (Dunker, 1846) Diodora elizabethae (Smith, 1901) Diodora fargoi Olsson & McGinty, 1958 Diodora fluviana (Dall, 1889) Diodora fontainiana (d'Orbigny, 1841) Diodora fragilis Pérez Farfante & Henríquez, 1947 Diodora funiculata (Reeve, 1850) Diodora fuscocrenulata (Smith, 1906) érez Farfante Diodora galeata (Helbing, 1779) Diodora giannispadai Aissaoui, Puillandre & Bouchet, 2017 Diodora gibberula (Lamarck, 1822) Diodora graeca (Linnaeus, 1758) Diodora granifera (Pease, 1861) Diodora harrassowitzi (Ihering, 1927) Diodora inaequalis (Sowerby, 1835) Diodora italica (DeFrance, 1820) Diodora jaumei Aguayo & Rehder, 1936 Diodora jukesii (Reeve, 1850) Diodora levicostata (Smith, 1914) Diodora lima (Sowerby, 1862) Diodora lincolnensis (Cotton, 1930) Diodora lineata (Sowerby, 1835) Diodora listeri (d'Orbigny, 1847) Diodora lorenzi Cossignani, 2020 Diodora magnifica Poppe & Tagaro, 2020 Diodora menkeana (Dunker, 1846) Diodora meta (Ihering, 1927) Diodora minuta (Lamarck, 1822) Diodora mirifica Métivier, 1972 Diodora namibiensis Poppe, Tagaro & Sarino, 2011 Diodora occidua (Cotton, 1930) Diodora occultata Poppe & Tagaro, 2020 Diodora octagona (Reeve, 1850) Diodora panamensis (Sowerby, 1835) Diodora parviforata (Sowerby, 1889) Diodora patagonica (d'Orbigny, 1839) Diodora philippiana (Dunker, 1846) Diodora pica (Sowerby, 1835) Diodora producta (Monterosato, 1880) Diodora punctifissa McLean, 1970 Diodora pusilla Berry, 1959 Diodora quadriradiata (Reeve, 1850) Diodora ruppellii (Sowerby, 1835) † Diodora sancticlementensis Landau, Van Dingenen & Ceulemans, 2017 Diodora sarasuae Espinosa, 1984 Diodora saturnalis (Carpenter, 1864) Diodora sayi (Dall, 1889) Diodora sculptilis Rolán & Gori, 2011 Diodora serae Espinosa & Ortea, 2011 Diodora sieboldii (Reeve, 1850) Diodora singaporensis (Reeve, 1850) Diodora spreta (Smith, 1901) † Diodora stalennuyi Dell'Angelo, Sosso, O. Anistratenko & V. Anistratenko, 2017 Diodora tanneri (Verrill, 1882) Diodora tenuiclathrata (Seguenza, 1863) Diodora terezae Neves, Castillo & Ramil, 2019 Diodora ticaonica (Reeve, 1850) Diodora variegata (Sowerby, 1862) Diodora vetula (Woodring, 1928) Diodora viridula (Lamarck, 1822) Diodora wetmorei Pérez Farfante, 1945
Synonyms: Diodora fimbriata Reeve, 1850 : synonym of Diodora jukesii (Reeve, 1850) Diodora natalensis ((Krauss, 1848), 1848): synonym of Fissurella natalensis Krauss, 1848 Diodora nigropunctata Thiele, 1930: synonym of Diodora jukesii (Reeve, 1850) Diodora noachina (Linnaeus, 1771): synonym of Puncturella noachina (Linnaeus, 1771) Diodora octogona [sic]: synonym of Diodora octagona (Reeve, 1850) Diodora ovalis Thiele, 1930: synonym of Diodora singaporensis (Reeve, 1850) Diodora philippiana (Finlay, 1930): synonym of Lucapina philippiana (Finlay, 1930) Diodora plicifera Thiele, 1930: synonym of Diodora jukesii (Reeve, 1850) Diodora reevei Schepman, 1908: synonym of Diodora octagona (Reeve, 1850) Diodora ruppellii (G.B. Sowerby I, 1835): synonym of Diodora rueppellii (G.B. Sowerby I, 1835) Diodora rugosa Thiele, 1930: synonym of Diodora lineata (G.B. Sowerby I, 1835)