sp. nov. and gen. nov., sp. nov., marine bacteria isolated from the sponge , and emended description of the genus .

Two Gram-stain-negative, strictly aerobic, marine bacteria, designated as strains RKSG066 and RKSG123, were isolated from a sponge collected at a depth of 15 m off the west coast of San Salvador, The Bahamas. Investigation of nearly full-length 16S rRNA gene and whole genome-based phylogenies revealed that both strains belong to the order within the class and phylum . Strain RKSG066 formed a monophyletic clade with described members of the genus , while strain RKSG123 formed a well-supported paraphyletic branch apart from this and other related genera within the family . For both RKSG066 and RKSG123, optimal growth parameters were 30-37 °C, pH 7-8 and 2-3 % (w/v) NaCl; cells were catalase- and oxidase-positive, and flexirubin-type pigments were absent. The predominant fatty acids were iso-C, C, C, iso-C 3-OH, C ω5, iso-C 3-OH, C ω9 and iso-C G for RKSG066, and iso-C 3-OH, C ω5, iso-C, C 3-OH and summed feature 4 (iso-C I and/or anteiso-C B) for RKSG123. Menaquinone-7 was the major respiratory quinone for both strains. The DNA G+C contents of RKSG066 and RKSG123 were 39.5 and 36.7 mol%, respectively. On the basis of phylogenetic distinctiveness and polyphasic analysis, the type strain RKSG066 (=TSD-73=LMG 29870) is proposed to represent a novel species of the genus , for which the name sp. nov. is proposed. The type strain RKSG123 (=TSD-75=LMG 30075) is proposed to represent the type species of a novel genus and species with the proposed name gen. nov., sp. nov. Additionally, the genus is emended to include strains of orange-pigmented colonies that contain the predominant cellular fatty acids C, C, C 5 and C 9.