Marortus luteolus Yu et al . 2019 is a later heterotypic synonym of Zhongshania marina On et al . 2019

Phylogeny of 16S rRNA gene sequences showed that Marortus luteolus ZX-21T and Zhongshania marina DSW25-10T are closely related, and form a monophyletic clade affiliated with the genus Zhongshania. Whole genome sequence comparisons showed that M. luteolus ZX-21T and Z. marina DSW25-10T shared 78.8 % digital DNA-DNA hybridization, 97.6 % average nucleotide identity and 98.1 % average amino acid identity. These values exceeded the recommended threshold values for species delineation. Thus, based on the principle of priority, we propose the reclassification of Marortus luteolus Yu et al. 2019 as a later heterotypic synonym of Zhongshania marina On et al. 2019.