Proposal of Flavihumibacter fluvii sp. nov. as a replacement name for the effectively published but invalidated epithet Flavihumibacter fluminis Park et al. 2022.

The name Flavihumibacter fluminis Park et al. 2022, which was effectively published but invalidated, is an illegitimate homonymic epithet of Flavihumibacter fluminis Guo et al. 2023.

Flavihumibacter fluminis sp. nov. and Flavihumibacter rivuli sp. nov., isolated from a freshwater stream.

Two Gram-stain-positive, aerobic, chemoheterotrophic, non-motile, rod-shaped, and yellow-pigmented bacterial strains, designated IMCC34837 and IMCC34838, were isolated from a freshwater stream. Results of 16S rRNA gene-based phylogenetic analyses showed that strains IMCC34837 and IMCC34838 shared 96.3% sequence similarity and were most closely related to Flavihumibacter profundi Chu64-6-1 (99.