Pleomorphobacterium xiamenense Yin et al. 2013 is a later heterotypic synonym of Oceanicella actignis Albuquerque et al. 2012 Huang, Zhaobin and Lai, Qiliang and Shao, Zongze,, 67, 3532-3534 (2017), doi = https://doi.org/10.1099/ijsem.0.002160, publicationName = Microbiology Society, issn = 1466-5026, abstract= Pleomorphobacterium xiamenense CLWT was compared with Oceanicella actignis PRQ-67T to examine the taxonomic relationship between the two organisms. The 16S rRNA gene sequence comparison showed that the two strains had 99.9 % sequence similarity. Phylogenetic analysis showed the two strains formed an independent tight cluster, distinctly branching from the closely related species in the family Rhodobacteraceae . Whole genomic comparison between the two strains revealed a digital DNA–DNA hybridization estimate of 88.4 % and average nucleotide identity of 98.8 %, strongly supporting that the two strains represented a single species. In addition, neither strain displayed any striking difference in biochemical characteristics, fatty acid composition, and polar lipid profile. According to priority, Pleomorphobacterium xiamenense is reclassified as a later heterotypic synonym of Oceanicella actignis based on the phylogenetic relationship, whole genomic comparison, fatty acid composition and polar lipid profile, and other phenotypic and biochemical properties., language=, type=