"Spirillum fetus" Lehmann and Neumann 1927 Dataset NCBI Taxonomy Classification phylum Campylobacterota class Epsilonproteobacteria order Campylobacterales family Campylobacteraceae genus Campylobacter species Campylobacter fetus Name Homonyms Spirillum fetus "Spirillum fetus" Lehmann and Neumann 1927