Leptothyra grossa is a species of small sea snail with calcareous opercula, a marine gastropod mollusk in the family Colloniidae.Bouchet, P. (2012). Leptothyra grossa. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=578848 on 2013-02-10
Distribution This marine species occurs off China
References
External links World Register of Marine Species