according to rule 12c of the IBCN. The term "Candidatus" is used for proposed species for which the lack of information (cf. ) prevents it from being a validated species according to the bacteriological code, such as deposition in two public cell repositories or lack of FAME analysis whereas "Candidatus Pelagibacter communis" is not in ATCC and DSMZ , nor has analysis of lipids and quinones been conducted. HTTC1062 is the type strain of the species "Ca. P. communis", which in turn is the type species of the genus "Candidatus Pelagibacter", which in turn is the type genus of the SAR11 clade or family "Pelagibacteraceae". Bacteriophage It was reported in Nature in February 2013 that the bacteriophage HTVC010P, which attacks "Ca. P. communis", has been discovered and "it probably really is the commonest organism on the planet". See also Prochlorococcus Synechococcus References External links MicrobeWiki entry BBC News: Ocean bug has 'smallest genome' Alphaproteobacteria Environmental microbiology Oligotrophs Bacteria described in 2002 Candidatus taxa