Two new species of Protoribates, P. osunensis from southwestern Nigeria and P. rioensis from southeastern Brazil are described. The morphological differences between each of these two species, the type species P. dentata and the classical species P. lophotrichus are highlighted and the haplozetid traits common to all species were compared. Critical attention is drawn to the taxonomical value of the families of the Protoribatidae and Xylobatidae, which have to be incorporated into the Family Haplozetidae. The genus Brasilobates is considered a synonym of Protoribates.