| butyrivibrio fibrisolvens | species | bacteria | bacteria | species | 831 |
| butyrivibrio hungatei | species | bacteria | bacteria | species | 185008 |
| butyrivibrio proteoclasticus | species | bacteria | bacteria | species | 43305 |
| butyrivibrio sp. | no rank | bacteria | bacteria | species | 28121 |
| pseudobutyrivibrio sp. | species | | | species | 2014367 |
| pseudobutyrivibrio sp. 12 | no rank | | | species | 1365929 |
| pseudobutyrivibrio sp. 13 | no rank | | | species | 1365930 |
| pseudobutyrivibrio sp. 28 | no rank | | | species | 1365931 |
| pseudobutyrivibrio sp. 33 | no rank | | | species | 1365932 |
| pseudobutyrivibrio sp. 36 | no rank | | | species | 1365933 |