We do not know the species names of any of these organisms as yet. It takes a great deal of biochemical and genetic work to identify a bacterial species, and many different ones are found in SLiMEs. In fact, finding a new bacterial species is not very noteworthy in itself. As near as microbiologists can figure, we only know about one-tenth of one percent of all bacterial species that are found in nature. One can find a new bacterial species in virtually any handful of soil.
Microbial ecology is one of the frontiers of science, with much yet to be discovered.
We expect that as the CRB communities are examined more closely, new species will be described. The CRB is an enormous volume of volcanic rock that covers over 163,000 square kilometers in the Northwestern United States. It consists of many layers of lava flows, known as flood basalts, with water confined in aquifers between the flows. These layers can be up to 3000 meters deep. We did not initially expect to find living organisms there, because little or no organic carbon exists in lava flows.