Pupillaea annulus explained

Pupillaea annulus is a species of sea snail, a marine gastropod mollusk in the family Fissurellidae, the keyhole limpets and slit limpets.^{[1] [2]}

External links

• World Register of Marine Species

Notes and References

1. Bouchet, P. (2012). Pupillaea annulus (Odhner, 1932). Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=699297 on 2012-12-31
2. McLean 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.