Marshall, B.A. 1991 Mollusca Gastropoda: Seguenziidae from New Caledonia and the Loyalty Islands. Resultats des Campagnes Musorstom volume 7, Mémoires du Muséum National d'Histoire Naturelle, 150 (p.60)
Marshall, B.A. 1983 Recent and Tertiary Seguenziidae (Mollusca: Gastropoda) from the New Zealand region, New Zealand Journal of Zoology, 10(3) (p.253)
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 approximation 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