Annotated type catalogue of Orthalicoidea (Mollusca, Gastropoda) in the Natural History Museum, London: A supplement

Recently a number of previously unrecognised type specimens representing 8 taxa were found in the general collection of the Natural History Museum, belonging to the Orthalicoidea. We have documented this material in this publication, as a supplement to previous papers published in 2011, 2012, 2014 and 2015. A corrected taxon index to all publications in this series is also part of this paper.