sp. nov., isolated from seawater.

A Gram-stain-negative, aerobic, motile and rod-shaped bacterial strain, designated OISW-25, was isolated from seawater in Republic of Korea. Strain OISW-25 grew optimally at 25 °C and in the presence of 2.0 % (w/v) NaCl. The phylogenetic trees based on 16S rRNA gene sequences showed that strain OISW-25 fell within the clade comprising the type strains of species. Strain OISW-25 exhibited 16S rRNA gene sequence similarity values of 97.5, 97.2 and 97.1 % to the type strains of , and , respectively, and of 93.6-96.6 % to the type strains of the other species. The average nucleotide identity values between strain OISW-25 and ATCC BAA-637 and two non-type strains of were 78.16-79.35 % and DNA-DNA relatedness value of strain OISW-25 with the type strain of . was 17 %. The DNA G+C content of strain OISW-25 was 39.2 mol% (HPLC) or 38.7 mol% (genome data). Strain OISW-25 contained Q-8 as the predominant ubiquinone and summed feature 3 (C 7 and/or C 6) and C as the major fatty acids. The major polar lipids of strain OISW-25 were phosphatidylethanolamine and phosphatidylglycerol. Distinguished phenotypic properties, along with the phylogenetic and genetic distinctiveness, revealed that strain OISW-25 is distinct from species. On the basis of the data presented, strain OISW-25 is considered to represent a novel species of the genus , for which the name sp. nov. is proposed. The type strain is OISW-25 (=KCTC 62426=NBRC 113187).