Mendax trizonalis is a species of small sea snail, a marine gastropod mollusc in the family Cerithiopsidae.Marshall, B.; Rosenberg, G. (2014). Mendax trizonalis (Odhner, 1924). Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=591954 on 2014-12-14
Subspecies Mendax trizonalis odhneri (Powell, 1927) Mendax trizonalis trizonalis (Odhner, 1924) represented as Mendax trizonalis (Odhner, 1924) (alternate representation
References
Spencer, H.G., Marshall, B.A. & Willan, R.C. (2009). Checklist of New Zealand living Mollusca. pp 196–219 in Gordon, D.P. (ed.) New Zealand inventory of biodiversity. Volume one. Kingdom Animalia: Radiata, Lophotrochozoa, Deuterostomia. Canterbury University Press, Christchurch.
Further reading Powell A. W. B., New Zealand Mollusca, William Collins Publishers Ltd, Auckland, New Zealand 1979