Abstract
A total of 434 taxa belonging mainly to Chlorophyceae, Myxophyceae and Bacillariophyceaeare added to the previous additions to the check list of the freshwater algae of New Zealand. Some of the names are from the references mentioned in an earlier check list but which held been overlooked; some are from earlier literature not covered by previous check lists; others are from papers published since 1966, and the remainder are from the authors' unpublished records.