Abstract
There are currently over 130 described species of Nephtyidae worldwide, with 18 species known from Australian waters belonging to four genera. Two new species are described, Micronephthys derupeli n. sp., and Nephtys triangula n. sp., from Eastern Australia. Descriptions are provided for all species examined. Comments are given about the recent transfer of Nephtys australiensis to Aglaophamus. A key to all Australian species of nephtyids is provided.