| brazil | | proechimys guyannensis | species | 1 | 0 |
| brazil | amazonas | proechimys guyannensis | species | 1 | 3 |
| brazil | maranhao | proechimys guyannensis | species | 0 | 1 |
| brazil | para | proechimys guyannensis | species | 0 | 1 |
| brazil | roraima | proechimys guyannensis | species | 1 | 0 |
| french guiana | | proechimys guyannensis | species | 14 | 0 |
| guyana | demerara-mahaica region | proechimys guyannensis | species | 7 | 0 |
| guyana | east berbice-corentyne region | proechimys guyannensis | species | 2 | 0 |
| guyana | potaro-siparuni region | proechimys guyannensis | species | 2 | 0 |
| guyana | upper demerara-berbice region | proechimys guyannensis | species | 1 | 0 |
| guyana | upper takutu-upper essequibo region | proechimys guyannensis | species | 47 | 0 |
| suriname | nickerie district | proechimys guyannensis | species | 18 | 0 |
| venezuela | amazonas | proechimys guyannensis | species | 3 | 0 |
| venezuela | bolivar | proechimys guyannensis | species | 1 | 0 |