| china | | candidatus ishikawaella capsulata | species | 1 | 0 |
| japan | hiroshima prefecture | candidatus ishikawaella capsulata | species | 1 | 0 |
| japan | hyogo prefecture | candidatus ishikawaella capsulata | species | 1 | 0 |
| japan | ibaraki prefecture | candidatus ishikawaella capsulata | species | 1 | 0 |
| japan | kagoshima prefecture | candidatus ishikawaella capsulata | species | 1 | 0 |
| united states | | candidatus ishikawaella capsulata | species | 1 | 0 |
| united states | georgia | candidatus ishikawaella capsulata | species | 1 | 1 |