Fissurellidea megatrema is a species of sea snail, a marine gastropod mollusk in the family Fissurellidae, the keyhole limpets and slit limpets.Rosenberg, G. (2012). Fissurellidea megatrema d'Orbigny, 1839. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=532850 on 2012-12-31McLean J.H. (1984) Shell reduction and loss in fissurellids: A review of genera and species in the Fissurellidea group. American Malacological Bulletin 2: 21-34.
Description The size of the shell varies between 17 mm and 32 mm.
Distribution This species occurs in the Atlantic Ocean off Brazil, Uruguay, Argentina
References
Ihering, H. von. 1907. Les Mollusques fossiles du Tertiare et du Crétacé Supérieur de l'Argentine. Anales del Museo Nacional de Buenos Aires (3)7: xiii + 611 pp., 18 pls.
External links Biodiversity Heritage Library (8 publications) Encyclopedia of Life World Register of Marine Species