| brazil | | marmosa murina | species | 24 | 0 |
| brazil | amazonas | marmosa murina | species | 0 | 1 |
| brazil | bahia | marmosa murina | species | 1 | 0 |
| brazil | espirito santo | marmosa murina | species | 2 | 0 |
| brazil | mato grosso | marmosa murina | species | 10 | 0 |
| brazil | para | marmosa murina | species | 0 | 1 |
| brazil | pernambuco | marmosa murina | species | 0 | 1 |
| brazil | tocantins | marmosa murina | species | 0 | 1 |
| ecuador | francisco de orellana province | marmosa murina waterhousei | subspecies | 3 | 0 |
| ecuador | napo province | marmosa murina waterhousei | subspecies | 5 | 0 |
| french guiana | | marmosa murina | species | 41 | 0 |
| french guiana | guyane | marmosa murina | species | 6 | 0 |
| guyana | | marmosa murina | species | 3 | 0 |
| guyana | demerara-mahaica region | marmosa murina | species | 4 | 0 |
| guyana | potaro-siparuni region | marmosa murina | species | 3 | 0 |
| guyana | upper demerara-berbice region | marmosa murina | species | 2 | 0 |
| guyana | upper takutu-upper essequibo region | marmosa murina | species | 2 | 0 |
| peru | loreto region | marmosa murina | species | 3 | 0 |
| peru | loreto region | marmosa murina waterhousei | subspecies | 3 | 0 |
| suriname | paramaribo district | marmosa murina | species | 1 | 0 |