sp. nov. and sp. nov., isolated from Jeongbang Waterfall on Jeju Island.

Two bacterial strains, designated MJB4 and SJ7, were isolated from water samples collected from Jeongbang Falls on Jeju Island, Republic of Korea. Phylogenetic analysis of 16S rRNA gene sequences indicated that the two strains belonged to the genera and , owing to their high similarities to DSM 29641 (97.5 %) and FA042 (96.3 %), respectively. These values are much lower than the gold standard for bacterial species (98.7 %). The average nucleotide identity values between strains MJB4, SJ7 and the reference strains, DSM 29641, MJ31 and T58 were 77.2, 75.9 and 75.4 %, respectively. Strains MJB4 and SJ7 and the type strains of the species involved in system incidence have average nucleotide identity and average amino acid threshold values of 60.1-82.6 % for the species boundary (95-96 %), which confirms that strains MJB4 and SJ7 represent two new species of genus and , respectively. Based on phylogenetic and phenotypic data, strains MJB4 and SJ7 are considered to represent novel species of the genus and , respectively, for which the names sp. nov. (type strain MJB4=KACC 21724=NBRC 114402) and sp. nov., (type strain SJ7=KACC 21715=NBRC 114486) have been proposed.