A Gram-stain-negative, aerobic, non-motile, salt- and alkali-tolerant, pear to oval shaped, rosette-forming, white coloured, bacterium, designated as strain JC646^T, was isolated from a sediment sample collected from Chilika lagoon, India. Strain JC646^T reproduced through budding, grew well at up to pH 9.0 and tolerated up to 7 % NaCl. Strain JC 646^T utilized α-d-glucose, fumarate, lactose, sucrose, fructose, d-galactose, mannose, maltose and d-xylose as carbon sources. Peptone, l-isoleucine, l-serine, l-lysine, l-glutamic acid, l-aspartic acid, dl-threonine and l-glycine were used by the strain as nitrogen sources for growth. The respiratory quinone was MK6. Major fatty acids were C_16 : 1 ω7c/C_16 : 1 ω6c and C_16 : 0. The polar lipids of strain JC646^T comprised phosphatidyl-dimethylethanolamine, phosphatidylcholine, diphosphatidylglycerol, an unidentified amino lipid and two unidentified lipids. Strain JC646^T had highest (97.3 %) 16S rRNA gene sequence identity to the only species of the genus Gimesia , Gimesia maris DSM 8797^T. The genome of strain JC646^T was 7.64 Mbp with a DNA G+C content of 53.2 mol%. For the resolution of the phylogenetic congruence of the novel strain, the phylogeny was also reconstructed with the sequences of 92 housekeeping genes. Based on phylogenetic analyses, digital DNA–DNA hybridization (19.0 %), genome average nucleotide identity (74.5 %) and average amino acid identity/percentageof conserved proteins (77 %) results, chemotaxonomic characteristics, and differential physiological properties, strain JC646^T is recognized as representing a new species of the genus Gimesia , for which we propose the name Gimesia chilikensis sp. nov. The type strain is JC646^T (=KCTC 72175^T=NBRC 113881^T).

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