sp. nov. and sp. nov., isolated from seawater.

Two Gram-stain-negative, catalase- and oxidase-positive, and aerobic bacteria, strains MSW7 and MSW13, were isolated from seawater. Cells of strains MSW7 and MSW13 are motile and non-motile rods, respectively. Strain MSW7 optimally grew at 25 °C and pH 7.0 and in the presence of 3 % (w/v) NaCl, whereas strain MSW13 optimally grew at 25 °C and pH 6.0-7.0 and in the presence of 2 % NaCl. As the sole respiratory quinone and the major fatty acids and polar lipids, strain MSW7 contained ubiquinone-8, C, C 8, C 8 and summed feature 3 (C 7 and/or C 6), and phosphatidylethanolamine and phosphatidylglycerol, respectively, whereas strain MSW13 contained menaquinone-6, C 6, iso-C, anteiso-C, and iso-C 3-OH, and phosphatidylethanolamine, respectively. The DNA G+C contents of strains MSW7 and MSW13 were 37.3 and 29.9 %, respectively. Phylogenetic analyses based on 16S rRNA gene sequences showed that strains MSW7 and MSW13 were most closely related to A3 and WP25 with 98.8 and 98.1 % sequence similarities, respectively. The average nucleotide identity and digital DNA-DNA hybridization values between strain MSW7 and A3 and between strain MSW13 and KACC 17473 were 73.6 and 22.6 % and 80.4 and 23.8 %, respectively. Based on phenotypic, chemotaxonomic and phylogenetic data, strains MSW7 and MSW13 represent novel species of the genera and , respectively, for which the names sp. nov. and sp. nov. are proposed, respectively. The type strains of sp. nov. and sp. nov. are MSW7 (=KACC 22339=JCM 35001) and MSW13 (=KACC 22341=JCM 35021), respectively.