| argentina | | farlowella hahni | species | 2 | 0 |
| brazil | | farlowella amazonum | species | 2 | 0 |
| brazil | | farlowella nattereri | species | 1 | 0 |
| brazil | | farlowella oxyrryncha | species | 6 | 0 |
| brazil | | farlowella paraguayensis | species | 2 | 0 |
| brazil | | farlowella platorynchus | species | 2 | 0 |
| brazil | | farlowella schreitmuelleri | species | 2 | 0 |
| french guiana | | farlowella reticulata | species | 6 | 0 |
| guyana | | farlowella aff. rugosa ansp 179 768 | species | 2 | 0 |
| guyana | | farlowella nattereri | species | 4 | 0 |
| guyana | | farlowella platorynchus | species | 2 | 0 |
| paraguay | | farlowella paraguayensis | species | 2 | 0 |
| peru | | farlowella hasemani | species | 1 | 0 |
| peru | | farlowella henriquei | species | 1 | 0 |
| peru | | farlowella knerii | species | 2 | 0 |
| peru | | farlowella nattereri | species | 1 | 0 |
| peru | | farlowella oxyrryncha | species | 9 | 0 |
| peru | | farlowella platorynchus | species | 2 | 0 |
| peru | | farlowella rugosa | species | 1 | 0 |
| peru | | farlowella smithi | species | 3 | 0 |
| suriname | sipaliwini district | farlowella reticulata | species | 1 | 0 |
| venezuela | | farlowella acus | species | 2 | 0 |
| venezuela | | farlowella curtirostra | species | 2 | 0 |
| venezuela | | farlowella mariaelenae | species | 2 | 0 |
| venezuela | | farlowella martini | species | 2 | 0 |
| venezuela | | farlowella taphorni | species | 2 | 0 |
| venezuela | | farlowella vittata | species | 2 | 0 |