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Pisionidae
Members of the family Pisionidae are widespread members of the interstitial fauna of soft sediments. They are rarely common, however, and are poorly known. There are several studies of development and reproduction, but little is known of their ecology and feeding biology. The classification followed in the interactive key follows Fauchald (1977) and Laubier (1967) in recognising four genera of Pisionidae: Pisionella, Pisionidens, Anoplopisione and Pisione. About 23 species of pisionidsare described globally. In Australia, two named species are known as well as several possibly undescribed species.
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