| india | tamil nadu | hirudinella ventricosa | species | 0 | 1 |
| japan | | hirudinella ventricosa | species | 1 | 0 |
| united states | wisconsin | hirudinella ahi | species | 1 | 0 |
| united states | wisconsin | hirudinella sp. a ssc-2013 | species | 2 | 0 |
| united states | wisconsin | hirudinella sp. b ssc-2013 | species | 1 | 0 |
| united states | wisconsin | hirudinella ventricosa | species | 1 | 0 |