Many of the shells described in Australian Molluscan Notes, No. 1 were derived from dredgings dumped at Dundas, on the Parramatta River. Owing to the depression, the operations of the dredge Triton have been suspended for the past three years, and, for the same reason, the trawling fleet, another prolific source of interesting material, has not been working continuously. Nevertheless, consideration of the forms obtained from the Dundas dump, and the results of a few successful finds, necessitate a number of notes, and a large number of records has accrued. I again have to thank Miss J. Allan and Mr. G. C. Clutton, whose drawings and photographs make the species very easy to distinguish when specimens are compared.