Two Gram-stain-positive, aerobic, pink, curved, rod-shaped, non-motile bacterial strains, designated MI-28T and SKY-11, were isolated from freshwater samples taken from a river and fish pond, respectively. Based on characterization using a polyphasic approach, the two strains showed highly similar phenotypic, physiological and genetic profiles. They demonstrated 99.9 % 16S rRNA gene sequence similarity and a 93–95 % DNA-DNA relatedness value, suggesting that they represent a single genomic species. Phylogenetic analyses, based on 16S rRNA gene sequences, showed that strains MI-28T and SKY-11 form a distinct lineage with respect to closely related genera within the family Microbacteriaceae of the class Actinobacteria , which is most closely related to Rhodoluna and Pontimonas , and levels... of 16S rRNA gene sequence similarity with the type species of related genera were less than 95 %. Cell-wall analysis showed that the peptidoglycan contained 2,4-diaminobutyric acid, alanine, glycine and glutamic acid. The predominant fatty acids were iso-C14 : 0, anteiso-C15 : 0 and iso-C16 : 0. The polar lipid profile consisted of a mixture of phosphatidylglycerol, diphosphatidylglycerol, an uncharacterized glycolipid and an uncharacterized aminophospholipid. The major polyamine was putrescine. The major isoprenoid quinone was MK-10. The G+C content of DNA was between 62.6 and 62.9 mol%. On the basis of the genotypic and phenotypic data, strains MI-28T and SKY-11 represent a novel genus and species of the family Microbacteriaceae , for which the name Puzihella rosea gen. nov., sp. nov. is proposed. The type strain of the type species is MI-28T (=BCRC 80688T=LMG 27848T=KCTC 29239T).