The length of the shell varies between 4 mm and 11 mm.
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Distribution
This species occurs in the Atlantic Ocean from Western nOrway to the British Isles; in the Mediterranean Sea in the Alboran Sea.
References
^ abRissoa membranacea (Adams J., 1800). Gofas, S. (2009). Rissoa membranacea (Adams J., 1800). In: Bouchet, P.; Gofas, S.; Rosenberg, G. (2009) World Marine Mollusca database. Accessed through the World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=141359 on 9 August 2010 .
Risso, A., 1826 - Histoire naturelle des principales productions de l'Europe Méridionale et particulièrement de celles des environs de Nice et des Alpes-Maritimes. Mollusques, vol. 4, p. 1-439, 12 pls
Arnaud, P. M., 1978. - Révision des taxa malacologiques méditerrannéens introduits par Antoine Risso. Annales du Muséum d'Histoire Naturelle de Nice "1977"5: 101-