anaerococcus lactolyticus anaerococcus lactolyticus anaerococcus lactolyticus is a bacterium from the family peptoniphilaceae. a. lactolyticus along a. vaginalis can be a dominant species in diabetic foot and pressure ulcers. it can also participate in polymicrobial infections of the urinary tract. anaerococcus lactolyticus scientific classification domain: bacteria phylum: bacillota class: clostridia order: eubacteriales family: peptoniphilaceae genus: anaerococcus species: a. lactolyticus binomial name anaerococcus lactolyticus(li et al. 1992) ezaki et al. 2001 synonyms peptostreptococcus lactolyticus