| austria | | troglotrema acutum | species | 2 | 0 |
| austria | vienna | trichurus sp. | species | 1 | 0 |
| china | | trichurus sp. | species | 4 | 0 |
| germany | bavaria | troglotrema acutum | species | 0 | 1 |
| japan | fukushima prefecture | troglotrematidae sp. hs-2009 | species | 1 | 0 |
| lithuania | | trichurus sp. | species | 1 | 0 |
| slovakia | presov region | troglotrematidae sp. 3lf-1470 | species | 378 | 0 |
| slovakia | presov region | troglotrematidae sp. 3lf-1496 | species | 1 | 0 |
| slovakia | presov region | troglotrematidae sp. 3lf-1551 | species | 1 | 0 |
| slovakia | presov region | troglotrematidae sp. 3lf-1555 | species | 1 | 0 |
| spain | catalonia | troglotrema acutum | species | 0 | 1 |
| ukraine | | nephrotrema truncatum | species | 1 | 0 |
| united states | california | trichurus sp. | species | 1 | 0 |