gemella palaticanis gemella palaticanis gemella palaticanis is a species of bacteria within the genus gemella. strains of this species were originally isolated from the mouth of a dog and are unique among gemella species in that they can ferment lactose. gemella palaticanis scientific classification domain: bacteria phylum: bacillota class: bacilli order: bacillales family: staphylococcaceae genus: gemella species: g. palaticanis binomial name gemella palaticaniscollins et al. 1999