Rank: Species
Lineage: Bacteria;Actinobacteria;Actinobacteria;Bifidobacteriales;Bifidobacteriaceae;Bifidobacterium;Bifidobacterium animalis subsp. lactis
Description: Bifidobacterium animalis and Bifidobacterium lactis were originally considered to be separate species. Recent studies evaluating the DNA relatedness and phenotypic similarities of these species has determined that they represent a single species. Bifidobacterium animalis is now comprised of two subspecies Bifidobacterium animalis subsp. lactis and Bifidobacterium animalis subsp. animalis.
Reference Material:
https://www.ncbi.nlm.nih.gov/genome/?term=Bifidobacterium%20animalis%20subsp.%20lactis