"Cycloclasticus zancles" Pieper 2012 Dataset NCBI Taxonomy Classification phylum Pseudomonadota class Gammaproteobacteria order Thiotrichales family Piscirickettsiaceae genus Cycloclasticus species Cycloclasticus zancles Name Homonyms Cycloclasticus zancles "Cycloclasticus zancles" Pieper 2012