{{Short description|Genus of gastropods}} {{Automatic taxobox | image = Lithopoma undosum.jpg | image_caption = Shell of ''Megastraea undosa'' (W. Wood, 1828), with operculum measuring 71.4 mm height by 89.9 mm diameter, collected at Salt Creek Beach, Laguna Niguel, in California. | display_parents = 3 | taxon = Megastraea | authority = McLean, 1970<ref>McLean J.H. (1970) ''New eastern Pacific subgenera of Turbo Linnaeus, 1758 and Astraea Röding, 1798''. The Veliger 13(1): 71-72.</ref> | synonyms_ref = | synonyms = | type_species = ''Trochus undosus'' | type_species_authority = W. Wood, 1828 }}

'''''Megastraea''''' is a genus of medium-sized to large sea snails with a calcareous operculum, marine gastropod mollusks in the family Turbinidae, the turban snails.<ref>Bouchet, P.; Rosenberg, G. (2011). Megastraea McLean, 1970. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=528082</ref>

==Species== Species within this genus were previously placed in the genus ''Astraea''. They include: * ''Megastraea turbanica'' <small>(Dall, 1910)</small> * ''Megastraea undosa'' <small>(Wood, 1828)</small>

==References== {{Reflist}}

{{Taxonbar|from=Q3142422}}

Category:Megastraea Category:Turbinidae Category:Gastropod genera Category:Taxa named by James Hamilton McLean

{{Turbinidae-stub}}