| lactobacillus delbrueckii | species | bacteria | bacteria | species | 1584 |
| lactobacillus delbrueckii subsp. bulgaricus | subspecies | bacteria | bacteria | subspecies | 1585 |
| lactobacillus delbrueckii subsp. bulgaricus pb2003/044-t3-4 | no rank | bacteria | bacteria | no rank | 784613 |
| lactobacillus delbrueckii subsp. lactis | subspecies | bacteria | bacteria | subspecies | 29397 |
| lactobacillus delbrueckii subsp. lactis dsm 20072 | no rank | bacteria | bacteria | no rank | 888027 |