sp. nov., sp. nov., sp. nov., sp. nov., sp. nov., sp. nov., sp. nov., sp. nov., sp. nov., sp. nov. and sp. nov., isolated from streams in China.

Twelve Gram-stain-negative, catalase- and oxidase-positive, rod-shaped and motile strains (CY7W, CY18W, CY22W, FT31W, FT137W, FT147W, BYS50W, BYS107W, LFS511W, LX15W, LX22W and NL8W) were isolated from streams in China. Comparisons based on 16S rRNA gene sequences indicated that these strains take species of genus as close neighbours. The reconstructed phylogenetic and phylogenomic trees also showed that these strains cluster with species of genus together. The genome G+C contents of these strains were in the range of 45.3 to 53.3 mol%. The calculated pairwise OrthoANIu values and digital DNA-DNA hybridization values among these strains and related strains were in the range of 70.4 to 94.1% and 19.3 to 55.3% except that the values between strains CY7W and BYS50W were 99.0 and 91.8 %, respectively. Q-8 was their predominant respiratory quinone. C c and C were their major fatty acids. Their polar lipids profiles were similar, including phosphatidylglycerol, phosphatidylethanolamine, one unidentified phospholipid and two kinds of unidentified aminolipids. Combining polyphasic taxonomic characteristics and phylogenetic relationships, twelve strains should represent eleven independent novel species of genus , for which the names sp. nov. (type strain BYS107W=GDMCC 1.2453=KCTC 82653), sp. nov. (type strain CY22W=GDMCC 1.1906=KACC 21951), sp. nov. (type strain FT137W=GDMCC 1.2456=KCTC 82656), sp. nov. (type strain LX15W=GDMCC 1.1910=JCM 34286), sp. nov. (type strain FT31W=GDMCC 1.1908=KACC 21953), sp. nov. (type strain CY18W=GDMCC 1.1904=KACC 21949), sp. nov. (type strain LFS511W=GDMCC 1.2458=KCTC 82658), sp. nov. (type strain LX22W=GDMCC 1.1912=KACC 21957), sp. nov. (type strain FT147W=GDMCC 1.2457=KCTC 82657), sp. nov. (type strain CY7W=GDMCC 1.1903=KACC 21961) and sp. nov. (type strain NL8W=GDMCC 1.1915=KACC 21960) are proposed.