streptococcus peroris streptococcus peroris streptococcus peroris is a species of streptococcus. in foods, s. peroris was firstly reported in tarhana (fermented turkish food) by researchers. streptococcus peroris scientific classification domain: bacteria phylum: bacillota class: bacilli order: lactobacillales family: streptococcaceae genus: streptococcus species: s. peroris binomial name streptococcus peroriskawamura et al. 1998