{{Short description|Genus of gastropods}} {{Automatic taxobox | image = Zeidora crepidula (MNHN-IM-2000-25322).jpeg | image_caption = Shell of ''Zeidora crepidula'' | taxon = Zeidora | authority = Adams, 1860{{No-gastropod-genus-ref}} | synonyms_ref = <ref name="WoRMS" /> | synonyms = * † ''Crepiemarginula'' <small>Seguenza, 1880</small> * ''Emarginula (Nesta)'' <small>H. Adams, 1870</small> · * ''Legrandia'' <small>Beddome, 1883</small> (invalid: junior homonym of ''Legrandia'' <small>Hanley, 1872</small>) * ''Nesta'' <small>Adams, 1870</small> * ''Zidora'' <small>Fischer, 1885</small> (invalid: unjustified emendation of ''Zeidora'' <small>Adams, 1860</small>) | type_species = ''Zeidora calceolina'' | type_species_authority = Adams, 1860 |display_parents= 3 }}
'''''Zeidora''''' is a genus of sea snails, marine gastropod mollusks in the family Fissurellidae, the keyhole limpets.<ref name="WoRMS">{{WRMS species|138016|''Zeidora'' Adams, 1860||27 July 2011}}</ref>
==Description== The genus ''Zeidora'' was instituted by A. Adams in 1860, for the reception of two Japanese shells having the outer aspect of ''Emarginula'' and an internal shelf as in ''Crepidula''.<ref>[https://www.biodiversitylibrary.org/page/16141956 Tate, R. (1894). On the occurrence of the fissurellid genus Zidora in Australian waters. Transactions of the Royal Society of South Australia. 18: 118-119]</ref>
The shell resembles ''Emarginula'', with the margin of the aperture crenulated and anteriorly deeply fissured, but there is posteriorly an internal, flat, semilunar septum present, which distinguishes this genus from any other Fissurellidae.<ref>[http://www.biodiversitylibrary.org/item/100489 Tryon (1882) Structural and systematic conchology vol. I]</ref>
==Species== Species within the genus ''Zeidora'' include: * ''Zeidora amamiensis'' <small>(Habe, 1963)</small> *''Zeidora antarctica'' <small>Aldea, Zelaya & Troncoso, 2011</small> *''Zeidora bahamondei'' <small>Rehder, 1980</small> *''Zeidora bigelowi'' <small>Pérez Farfante, 1947</small><ref>{{WRMS species|419375|''Zeidora bigelowi'' Pérez Farfante, 1947||19 April 2010}}</ref> *''Zeidora calceolina'' <small>Adams, 1860</small> * † ''Zeidora clypeata'' <small>(Lamarck, 1803)</small> *''Zeidora crepidula'' <small>Simone & Cunha, 2014</small> *''Zeidora flabellum'' <small>(Dall, 1896)</small> *''Zeidora galapagensis'' <small>(McLean, 1970)</small> * † ''Zeidora geigeri'' <small>Helwerda & Wesselingh, 2014</small> * † ''Zeidora gruelli'' <small>R. Janssen, 1984</small> * † ''Zeidora lacipidinae'' <small>Lozouet, 1999</small> * † ''Zeidora ligustica'' <small>Bellardi, 1878</small> *''Zeidora lodderae'' <small>(Tate & May, 1900)</small> * ''Zeidora macleani'' <small>Gálvez & Torres, 2019</small> *''Zeidora maoria'' <small>Powell, 1936</small> *''Zeidora milerai'' <small>Espinosa, Ortea & Fernandez-Garces, 2004</small><ref>{{WRMS species|388685|''Zeidora milerai'' Espinosa, Ortea & Fernandez-Garces, 2004||19 April 2010}}</ref> *''Zeidora naufraga'' <small>Watson, 1883</small><ref>{{WRMS species|139977|''Zeidora naufraga'' Watson, 1883||19 April 2010}}</ref> *''Zeidora neritica'' <small>Espinosa, Ortea & Fernandez-Garces, 2004</small><ref>{{WRMS species|388686|''Zeidora neritica'' Espinosa, Ortea & Fernandez-Garces, 2004||19 April 2010}}</ref> *''Zeidora nesta'' <small>(Pilsbry, 1890)</small> *''Zeidora pussa'' <small>Simone & Cunha, 2014</small> *''Zeidora reticulata'' <small>Adams, 1862</small> *''Zeidora tasmanica'' <small>(Beddome, 1883)</small> * † ''Zeidora virodunensis'' <small>Lozouet, 1999</small> ;Species brought into synonymy: *''Zeidora candida'' <small>(Adams, 1870)</small>: synonym of ''Zeidora nesta'' <small>(Pilsbry, 1890)</small> *''Zeidora legrandi'' <small>Tate, 1894</small>: synonym of ''Zeidora tasmanica'' <small>(Beddome, 1883)</small> *''Zeidora limatulaeformis'' <small>Horikoshi, 1944</small>: synonym of ''Zeidora calceolina'' <small>A. Adams, 1860</small> * † ''Zeidora seguenzae'' <small>R. B. Watson, 1883</small>: synonym of † ''Zeidora ligustica'' <small>Bellardi, 1878</small>
==References== {{Reflist}} * Higo, S., Callomon, P. & Goto, Y. (1999) ''Catalogue and Bibliography of the Marine Shell-Bearing Mollusca of Japan''. Elle Scientific Publications, Yao, Japan, 749 pp. * Gofas, S.; Le Renard, J.; Bouchet, P. (2001). Mollusca, in: Costello, M.J. et al. (Ed.) (2001). ''European register of marine species: a check-list of the marine species in Europe and a bibliography of guides to their identification''. Collection Patrimoines Naturels, 50: pp. 180–213 * Spencer, H.; Marshall. B. (2009). ''All Mollusca except Opisthobranchia''. In: Gordon, D. (Ed.) (2009). New Zealand Inventory of Biodiversity. Volume One: Kingdom Animalia. 584 pp * Aldea C., Zelaya D.G. & Troncoso J.S. (2011) ''A new gigantic species of Zeidora Adams, 1860 from Antarctic waters (Gastropoda: Fissurellidae).'' The Nautilus 125(2): 79-82
==External links== {{Commons category}} * [http://www.biodiversitylibrary.org/page/2320773 Adams, A. (1860). On some new genera and species of Mollusca from Japan. Annals and Magazine of Natural History. (3) 5: 299-303] * [https://www.biodiversitylibrary.org/page/28554801 Adams, H. (1870). Descriptions of a new genus, and of eighteen new species of Molluscs. Proceedings of the Zoological Society of London. 1870: 5-9]
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Category:Zeidora
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