Finlay, H.J. 1926. A further commentary on New Zealand molluscan systematics. Transactions of the New Zealand Institute 57: 320-485, pls. 18-23. http://rsnz.natlib.govt.nz/volume/rsnz_57/rsnz_57_00_003550.html.
Finlay, 1926. Trans. Proc. New Zealand Inst. 57: 463.
Type species: Kellia bifurica Webster, 1908 = Arthritica bifurica
Finlay, 1926. Trans. Proc. New Zealand Inst. 57: 462.
Type species: Zemysia (Zemysina) globus Finlay, 1926 = Zemysina globus
Finlay, 1926. Trans. Proc. New Zealand Inst. 57: 462.