The Bacteriological Code regulates the naming of taxonomic ranks from class to subspecies. As for plants, names of orders end in ales, names of suborders end in ineae, and family names end in aceae. Names of classes have variable suffixes. Names at all taxonomic ranks are presented in italics:

Bacteria [kingdom]     Proteobacteria [phylum]     Gammaproteobacteria [class]     Enterobacterales [order]    Enterobacteriaceae [family]     Salmonella [genus]