"Shigella viscosa" (Snyder 1925) Bergey 1930 Dataset NCBI Taxonomy Classification phylum Pseudomonadota class Gammaproteobacteria order Pasteurellales family Pasteurellaceae genus Actinobacillus species Actinobacillus equuli Name Homonyms Shigella viscosa "Shigella viscosa" (Snyder 1925) Bergey 1930