This article is a validation list from the International Journal of Systematic and Evolutionary Microbiology announcing the formal validation of nine new bacterial names and combinations that were previously published in other journals. The validation list procedure ensures that new microbial taxa meet nomenclatural requirements for valid publication in bacteriological nomenclature. The validated names include one new genus and species (Cobetia marina), two new genera with species (Dehalospirillum multivorans and Rubritepida floccuulans), and six new species in established genera (Dysgonomonas mossii, Porphyrobacter sanguineus, Propionibacterium australiense, Ruminococcus luti, and Thermocrinis albus). Each entry includes nomenclatural types with strain designations and references to culture collections worldwide. The article emphasizes that validation date is the publication date of this list, not the original publication date, and that inclusion does not necessarily constitute permanent taxonomic acceptance, as organisms may later be reclassified or recognized as synonyms.

Key findings

• Nine new bacterial names and combinations were formally validated through IJSEM Validation List 88
• Taxa validated include the new genera Cobetia, Dehalospirillum, and Rubritepida along with six new species in existing genera
• All validated taxa have designated nomenclatural types with strain depositions in international culture collections
• Validation represents formal registration in bacteriological nomenclature with an effective date of list publication in 2002