Based upon material collected in Madagascar, Enewetak Atoll, New Caledonia, and the Moluccas, seventeen new species of Xarifia and one new species of a new xarifiid genus (Lipochrus) are described from various species of Acropora, Montipora, Alveopora, Cyphastrea, and Echinopora. Several previously known species of Xarifia are redescribed in part and new hosts and geographical records are listed. A key to the three genera of the Xarifiidae is provided, as well as tabular differentiation of the 39 species of Xarifia. The external morphology of Xarifia is discussed.