Polinices putealis Garrard, 1961 Height 27mm, Marine. Thinner shell than P.tawhitirahia, with an umbilicus that remains open at all stages of growth. Fawn to greenish periostracum Australia, Kermadec Islands and Northern NZ KA
Polinices tawhitirahia Powell, 1965 Height 34mm, Width 31mm, Marine. Heavy shell with thick callus that completely fills umbilicus. Colourless periostracum, fewer protoconch whorls than P. putealis, and a broader first protoconch whorl Northland to Poor Knights Islands. Also Norfolk Islands KA
Key to Geographical Ranges
The symbols K.A.C.F.M.An. are used to indicate the geographical range of the species.
They have been adopted to give an approxomation of the range of each species within New Zealand.
Aupourian - Kaipara Harbour, north around North Cape, encompassing the Three Kings Islands and south to East Cape
Cookian - Lower North Island and the northern part of the South Island