{{Short description|Genus of gastropods}} {{Italic title}} {{Automatic_taxobox | image = Megalophaedusa martensi 02.jpg | image_caption = ''Megalophaedusa martensi''. The individual in the photo has a shell 45.5 mm long and weighs 3.2g with the soft parts intact. | status = | taxon = Megalophaedusa | authority = Boettger, 1877 [http://www.ubio.org/NZ/search.php?search=megalophaedusa&quickSearch=QuickSearch&selectall=Check+All&colname=on&colcategory=on&colauthority=on&colcomments=on&page=&vol=] |synonyms= * ''Aprosphyma'' <small>A. J. Wagner, 1920</small> (junior synonym) * ''Clausilia (Megalophaedusa)'' <small>O. Boettger, 1877</small> * ''Decolliphaedusa'' <small>Azuma, 1982</small> * ''Hemiphaedusa (Pinguiphaedusa)'' <small>Azuma, 1982</small> * ''Hemiphaedusa (Placeophaedusa)'' <small>Minato, 1994</small> * ''Megalophaedusa (Aulacophaedusa)'' <small>Habe, 1958</small> · alternate representation * ''Megalophaedusa (Dimphaedusa)'' <small>Motochin & Ueshima, 2017</small> · alternate representation * ''Megalophaedusa (Megalophaedusa)'' <small>O. Boettger, 1877</small> · alternate representation * ''Megalophaedusa (Mesozaptyx)'' <small>Kuroda, 1963</small> (not available: nomen nudum) * ''Megalophaedusa (Mundiphaedusa)'' <small>Minato, 1979</small> * ''Megalophaedusa (Neophaedusa)'' <small>Kuroda & Minato, 1975</small> · alternate representation * ''Megalophadeusa (Pauciphaedusa)'' <small>Minato & Habe, 1983</small> · alternate representation * ''Megalophaedusa (Pinguiphaedusa)'' <small>Azuma, 1982</small> · alternate representation * ''Megalophaedusa (Tyrannophaedusa)'' <small>Pilsbry, 1900</small> · alternate representation * ''Megalophaedusa (Tyrannophaedusoides)'' <small>Motochin & Ueshima, 2017</small> · alternate representation * ''Megalophaedusa (Ventriphaedusa)'' <small>Azuma, 1982</small> · alternate representation * ''Megalophaedusa (Vitriphaedusa)'' <small>Azuma, 1982</small> · alternate representation * ''Mundiphaedusa'' <small>Minato, 1979</small> * ''Mundiphaedusa (Aulacophaedusa)'' <small>Habe, 1958</small> * ''Neophaedusa'' <small>Kuroda & Minato, 1975</small> (original rank) * ''Pauciphaedusa'' <small>Minato & Habe, 1983</small> * ''Pinguiphaedusa'' <small>Azuma, 1982</small> * ''Spinulaphaedusa'' <small>Minato, 1994</small> * ''Tyrannophaedusa'' <small>Pilsbry, 1900</small> * ''Tyrannophaedusa (Aulacophaedusa)'' <small>Habe, 1958</small> * ''Tyrannophaedusa (Decolliphaedusa)'' <small>Azuma, 1982</small> * ''Tyrannophaedusa (Tyrannophaedusa)'' <small>Pilsbry, 1900</small> * ''Ventriphaedusa'' <small>Azuma, 1982</small> * ''Vitriphaedusa'' <small>Azuma, 1982</small> }}
'''Megalophaedusa''' is a genus of medium-sized air-breathing land snails, terrestrial pulmonate gastropod mollusks in the family Clausiliidae, the door snails, all of which have a clausilium.<ref name="WoRMS">MolluscaBase eds. (2022). MolluscaBase. Megalophaedusa O. Boettger, 1877. Accessed through: World Register of Marine Species at: https://www.marinespecies.org/aphia.php?p=taxdetails&id=996166 on 2022-07-03</ref>
This genus occurs in Japan.
==Species== Species within the genus ''Megalophaedusa'' include: [http://malacos.chez.com/htm/J32.HTM]
* ''Megalophaedusa concrescens'' <small>(Pilsbry 1905)</small> * ''Megalophaedusa hickanis mikawa'' <small> Pilsbry 1905</small> * ''Megalophaedusa hiraseana'' <small> (Pilsbry 1901)</small> * ''Megalophaedusa martensi'' <small> (Von Martens 1860)</small> ** ''Megalophaedusa martensi tinctilabris'' <small> (Pilsbry 1902)</small> * ''Megalophaedusa spelaeonis'' <small>(Kuroda & Minato, 1975)</small> * ''Megalophaedusa vasta'' <small> Boettger 1877</small> * ''Megalophaedusa yokohamensis'' <small> (Crosse 1876)</small>
==References== {{reflist}} * [http://www.ubio.org/NZ/search.php?search=megalophaedusa&quickSearch=QuickSearch&selectall=Check+All&colname=on&colcategory=on&colauthority=on&colcomments=on&page=&vol= Nomenclator Zoologicus info]
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Category:Clausiliidae
{{Clausiliidae-stub}}