| calomys callosus | | Bolivia: Santa Cruz, 10 KM N San Ramon | | 549439623 |
| calomys callosus | | Bolivia: Santa Cruz, 10 KM N San Ramon, 250 M | | 549439793 |
| calomys callosus | | Bolivia: Santa Cruz, 10 KM N San Ramon, 250 M | | 549440263 |
| calomys callosus | | Bolivia: Santa Cruz, 10 KM N San Ramon, 250 M; 16D36'S, 62D42'W | | 1237941144 |