In a taxonomic study of the Ostracoda from two localities in northern Port PhiIlip Bay, Victoria, 32 new species are proposed. These are: Cytherelloidea keiji, Paracypris bradyi, Australoecia victoriensis, Loxocythere hornibrooki, Australocyrheridea vandenboldi, Copytus rara, Parakrithella australis, Cytherura taylori, Semicytherura tenuireticulata, S. angusta, S. paenenuda, Hemicytherura seaholmensis, Microcytherura australis, M. gawemuelleri, M. triebeli, Callistocythere puri, C. hartmanni, C. insolita, 'Hemicytheridea' portjacksonensis, Loxoconcha trita, L. gilli, Loxoconchella pulchra, Paradoxostoma romei, P. commune, P. trapezoideum, Cytherois dissimilis, C. bonaducei, Paracytherois portphillipensis, Microcythere macphersoni, Cletocythereis curta, Xestoleberis briggsi, and Doratocythcre foveata. In addition, the genera Australoecia (type species Australoecia victoriensis), Australocytheridea (type species Australocytheidea(sic) vandenboldi), Ponticocythereis (type species Ponticocythereis militaris (Brady), 1866) and Doratocythere (type species Doratocythere foveata) are described as new. The study closes with a brief comment on the distinctive features of each faunule.