| australia | | contracaecum microcephalum | species | 4 | 0 |
| australia | south australia | contracaecum microcephalum | species | 0 | 1 |
| germany | brandenburg | contracaecum microcephalum | species | 0 | 1 |
| iraq | | contracaecum microcephalum | species | 8 | 0 |
| montenegro | | contracaecum microcephalum | species | 5 | 0 |