kingdom Monera, Monera - prokaryotic bacteria and blue-green algae and various primitive pathogens; because of lack of consensus on how to divide the organisms into phyla informal names are used for the major divisions

bacteria family - a family of bacteria

genus Lactobacillus - type genus of the family Lactobacillaceae

genus Diplococcus - a genus of bacteria

genus Streptococcus - a genus of bacteria