Peptostreptococcus russellii Whitehead et al. 2011 Whitehead T.R. Cotta M.A. Falsen E. Moore E. Lawson P.A. Peptostreptococcus russellii sp. nov., isolated from a swine-manure storage pit 2011 61 8 1875 1879 International Journal of Systematic and Evolutionary Microbiology Int J Syst Evol Microbiol 1466-5026 1466-5034 10.1099/ijs.0.023762-0 20833884