South Africa (Indian Ocean): Knysna Estuary (Western Cape) and Haga Haga (Eastern Cape).
Day, J. H. (1961). The Polychaet [sic] Fauna of South Africa. Part 6. Sedentary species dredged off Cape coasts with a few new records from the shore. <em>Journal of the Linnean Society of London.</em> 44(299): 463-560.
Simon, C.A.; Worsfold, T.M.; Lange, L.; Sterley, J. (2010). The genus <i>Boccardia</i> (Polychaeta: Spionidae) associated with mollusc shells on the south coast of South Africa. <em>Journal of the Marine Biological Association of the United Kingdom.</em> 90(03): 585-598.available online athttps://doi.org/10.1017/S0025315409990452 Available for editors [request]