| abstract | Four new species of Halacaridae (Acarina: Prostigmata) are described from Australian coastal waters: Lohmannella pinggi sp. n., Agauopsis mokari sp. n., Agauopsis collaris sp. n. and Copidognathus scuna sp. n.; Thalassarachna lubricus (Bartsch), a species described from New Zealand, is recorded from Australia, and the descriptions of the female and the deutonymph are given. |