Caecum digitulum is a species of small sea snail, a marine gastropod mollusc or micromollusc in the family Caecidae.Rosenberg, G. (2012). Caecum digitulum. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=598626 on 2012-05-31
References
Further reading Powell A. W. B., New Zealand Mollusca, William Collins Publishers Ltd, Auckland, New Zealand 1979