| anguilla | | proteocephalus macrocephalus | species | 0 | 11 |
| canada | nova scotia | proteocephalus macrocephalus | species | 0 | 1 |
| czech republic | central bohemian region | proteocephalus macrocephalus | species | 2 | 0 |
| france | corse region | proteocephalus macrocephalus | species | 0 | 1 |
| portugal | aveiro district | proteocephalus macrocephalus | species | 0 | 1 |
| united kingdom | england | proteocephalus macrocephalus | species | 169 | 0 |