The Recent species of the Bryozoan family Macroporidae are discussed after study of type and newly collected material using the Scanning Electron Microscope (SEM). The diagnosis of the family and the descriptions of Recent species are updated, using characters previously overlooked or incompletely known. Three new species are described: Macropora brownisp. nov. and Macropora uttleyisp. nov. from Three Kings Island, New Zealand, the latter differing from other species in the features of female zooids and ovicells and in its uniserial growth; Macropora georgiensissp. nov., the first macroporid found in the Atlantic Ocean and the southernmost in distribution, being found on South Georgia Island. The geographical range of the family is extended to sub-Antarctic waters of the Atlantic Ocean. A study on the ontogeny of the ovicells of Macroporidae is included and the conclusion is drawn that, in most cases, the ovicell is subimmersed, supported by a kenozooid, and that maternal zooids are differentiated early in ontogeny into female zooids (here termed gynozooids).