Salipiger nanhaiensis Dai et al. 2015 is a later heterotypic synonym of Thiobacimonas profunda Li et al. 2015.

Salipiger nanhaiensis ZH114T was compared with Thiobacimonas profunda JLT2016T to clarify their taxonomic relationship. The results of the 16S rRNA gene sequence comparison indicated that the two strains had 99.7 % sequence similarity. Results of phylogenetic analysis indicated that the two strains formed a tight cluster, distinctly branching from Salipiger mucosus A3T and other representatives in the family Rhodobacteraceae. Whole genomic comparison between the two strains yielded a digital DDH estimate of 97.3 % and ANI value of 99.7 %, strongly supporting the hypothesis that the two strains represented a single species. In addition, the two strains displayed no striking differences in physiological and biochemical properties, fatty acid composition or polar lipids profile. Due to priority, Salipiger nanhaiensis is reclassified as a later heterotypic synonym of Thiobacimonas profunda based on the phylogenetic relationship inferred from the 16S rRNA gene sequence, whole genomic comparison, fatty acid composition and polar lipid profile and other phenotypic and biochemical properties.