Gillisia marina sp. nov., from seashore sand, and emended description of the genus Gillisia A Gram-staining-negative, strictly aerobic, rod-shaped bacterium, designated CBA3202 T , was isolated from seashore sand on Jeju Island, Republic of Korea. Based on the 16S rRNA gene sequence analysis, strain CBA3202 T was allocated to the genus Gillisia (family Flavobacteriaceae) and was most closely related to the type strain of Gillisia mitskevichiae (99.0 % 16S rRNA gene sequence similarity). Optimal growth occurred at 25 6C and with 3 % NaCl. The only isoprenoid quinone was menaquinone-6 (MK-6), the predominant fatty acids were C 16 : 0 , iso-C 15 : 1 G, iso-C 16 : 0 and summed feature 3 (comprising C 16 : 1 v6c and/or C 16 : 1 v7c), and the DNA G+C content was 34.9 mol%. The polar lipids were phosphatidylethanolamine, two unidentified aminolipids and several unidentified polar lipids. Based on phylogenetic inference and phenotypic data, we conclude that strain CBA3202 T represents a novel species of the genus Gillisia, for which the name Gillisia marina sp. nov. is proposed. The type strain is CBA3202 T