Crook, Matthew B.

Two species have been named in the provisional genus ‘ Candidatus Nostocoides’: ‘ Ca . Nostocoides limicola’ corrig. Blackall et al . 2000 and ‘ Ca . Nostocoides acidiphilum’ corrig. Kulichevskaya et al . 2012. The type species of the genus, ‘ Ca . Nostocoides limicola’ has since been transferred to Tetrasphaera Maszenan et al . 2000, which was later renamed Nostocoides Deshmukh and Oren 2024. This leaves ‘ Ca . Nostocoides acidiphilum’ as an orphan species. Furthermore, Kulichevskaya et al . did not assign ‘ Ca . Nostocoides acidiphilum’ to ‘ Ca . Nostocoides’ corrig. Blackall et al . 2000. Instead, they proposed a new genus, ‘ Ca . Nostocoides’ corrig. Kulichevskaya et al . 2012, in the phylum Planctomycetota . This is in violation of Rule 51b (4) of the International Code of Nomenclature of Prokaryotes, making ‘ Ca . Nostocoides’ corrig. Kulichevskaya et al . 2012 and ‘ Ca . Nostocoides acidiphilum’ corrig. Kulichevskaya et al . 2012 pro-illegitimate names. To resolve this situation, I propose the replacement names ‘ Ca . Nostocimimus’ gen. nov. and ‘ Ca . Nostocimimus acidiphilus’ comb. nov., respectively.