"Spirillum psychrophilum" Terasaki 1973 Dataset NCBI Taxonomy Classification kingdom Pseudomonadati phylum Pseudomonadota class Betaproteobacteria order Burkholderiales family Comamonadaceae genus Simplicispira species Simplicispira psychrophila Name Homonyms "Spirillum psychrophilum" Terasaki 1973 Spirillum psychrophilum