The purpose of this application is the conservation of the specific names of Geophilus brevilabiatiis Newport, 1845 (currently Orphnaeus brevilabiatus) and Chomatobius brasilianus Humbert & Saussure, 1870 (currently O. brasilianus) for two widely distributed species of geophilomorph centipedes (family oryidae). Although senior subjective synonyms for these two nominal species have been used only infrequently, the junior names do not fully meet the criteria for protection under Article 23.9 of the Code. Scolopendra phosphorea Linnaeus, 1758, a senior synonym of G. brevilabiatus, has been used once as a valid name in 1901. There are two senior synonyms of the nominal species G. brasilianus— G. lineatus and G. whitei, both of Newport (1845), but neither has been used as the valid name of the taxon.Facultad de Ciencias Naturales y Museo