Bail, P., Limpus, A. 2005A Conchological Iconography 11, The Recent Volutes of New Zealand, with a revision of the genus Alcithoe H. & A. Adams, 1853, ConchBooks, Hackenheim, Germany (p.31)
Dell, R.K. 1978 Additions to the New Zealand Recent molluscan fauna with notes on Pachymelon (Palomelon), National Museum of New Zealand Records, 1(11) (p.167)
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.
K=
Kermadec Islands
A=
Aupourian - Kaipara Harbour, north around North Cape, encompassing the Three Kings Islands and south to East Cape
C=
Cookian - Lower North Island and the northern part of the South Island