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Volkmer-Ribeiro, C.; Rosa-Barboza, R.; Fonseca-Melho, H. (1983). The unspected occurrence of Drulia browni (Bowerbank, 1863) (Porifera, Spongillidae) in an oxbow lake at the extreme south of Brazil. Iheringia, Série Zoologia. 63: 3-10.