Marshall, B.A. 2016 New species of Venustatrochus Powell, 1951 from New Zealand, and new species of Falsimargarita Powell, 1951 and a new genus of the Calliostomatidae from the southwest Pacific, with comments on some other calliostomatid genera (Mollusca: Gastropoda), Molluscan Research, 36(2) (p.139)
Marshall, B.A. 1995 Calliostomatidae (Gastropoda: Trochoidea) from New Caledonia, the Loyalty Islands, and the northern Lord Howe Rise. Resultats des Campagnes Musorstom volume 14, Mémoires du Muséum National d'Histoire Naturelle, 167 (p.411)
Marshall, B.A. 1979 The Trochidae and Turbinidae of the Kermadec Ridge (Mollusca: Gastropoda), New Zealand Journal of Zoology, 6(4) (p.538)
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