Proposal of Allocatenococcus gen. nov., Allocoenonia gen. nov. and Allofournierella gen. nov. as replacement names for the illegitimate prokaryotic generic names Catenococcus Sorokin 1994, Coenonia Vandamme et al. 1999 and Fournierella Togo et al. 20

The prokaryotic generic names <i>Catenococcus</i> Sorokin 1994, <i>Coenonia</i> Vandamme <i>et al</i>. 1999 and <i>Fournierella</i> Togo <i>et al</i>. 2017 are illegitimate because they are later homonyms of <i>Catenococcus</i> Hindák 1977, <i>Coenonia</i> Van Tieghem 1884 and <i>Fournierella</i> Collignon 1966, respectively (Principle 2 and Rules 51b(5) and 51b(4) of the International Code of Nomenclature of Prokaryotes). We, therefore, propose the replacement generic names <i>Allocatenococcus</i>, <i>Allocoenonia</i> and <i>Allofournierella</i>, with type species <i>Allocatenococcus thiocycli</i>, <i>Allocoenonia anatina</i> and <i>Allofournierella massiliensis</i>, respectively.