"Bacterium viscosum equi" Magnusson 1917 Dataset NCBI Taxonomy Classification phylum Pseudomonadota class Gammaproteobacteria order Pasteurellales family Pasteurellaceae genus Actinobacillus species Actinobacillus equuli Name Homonyms Bacterium viscosum equi "Bacterium viscosum equi" Magnusson 1917