Williamia radiata nutata explained

Williamia radiata nutata is a subspecies of small sea snail or saltwater limpet with a lung, a marine pulmonate gastropod mollusc in the family Siphonariidae, the marine pulmonate limpets.^[1]

References

• Powell A. W. B., New Zealand Mollusca, William Collins Publishers Ltd, Auckland, New Zealand 1979
• Marshall B.A. (1981) The genus Williamia in the western Pacific (Mollusca: Siphonariidae). New Zealand Journal of Zoology 8: 487-492.

Notes and References

1. Bouchet, P. (2011). Williamia radiata nutata (Hedley, 1908). Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=559220 on 2012-04-11