| brazil | amazonas | proechimys quadruplicatus | species | 3 | 0 |
| ecuador | francisco de orellana province | proechimys quadruplicatus | species | 6 | 0 |
| ecuador | napo province | proechimys quadruplicatus | species | 7 | 0 |
| peru | amazonas region | proechimys quadruplicatus | species | 2 | 0 |
| peru | loreto region | proechimys quadruplicatus | species | 14 | 0 |