According to Lai et al. (2010), this species is a later heterotypic synonym of Ruegeriamobilis Muramatsu et al. 2007.Publication:
Lai Q, Yuan J, Li F, Zheng T, Shao Z. Ruegeria pelagia is a later heterotypic synonym of Ruegeria mobilis. Int J Syst Evol Microbiol 2010; 60:1918-1920.
The phylogenetic position of this species was determined in a genome-scale analysis by Hördt et al. (2020).Publication:
Hördt A, García-López M, Meier-Kolthoff JP, Schleuning M, Weinhold LM, Tindall BJ, Gronow S, Kyrpides NC, Woyke T, Göker M. Analysis of 1,000+ Type-Strain Genomes Substantially Improves Taxonomic Classification of Alphaproteobacteria. Front. Microbiol. 2020; 11:468.