A revision of the Australian and tropical Indo-Pacific Tertiary and Recent species of Pisinna (= Estea) (Mollusca: Gastropoda: Rissoidae)
The Recent and Tertiary species of Pisinna Monterosato (= Estea Iredale) from Australia and the tropical Indo-Pacific are reviewed. 26 species are recognised from temperate Australia and 11 from tropical Australia and the Indo-Pacific. The extralimital species, with the exception of those from New Zealand, are also briefly reviewed. 10 new species and 2 new subspecies are described and radulae and opercula of some species are illustrated.