Haemophilus haemolyticus Dataset NCBI Taxonomy Rank SPECIES Classification phylum Pseudomonadota class Gammaproteobacteria order Pasteurellales family Pasteurellaceae genus Haemophilus species Haemophilus haemolyticus Name Synonyms "Bacillus X" Pritchett and Stillman 1919 Bacillus X Haemophilus haemolyticus Bergey et al. 1923 Homonyms Haemophilus haemolyticus Haemophilus haemolyticus Bergey et al. 1923