| Specimen ID | 237981 |
| Group | Fishes |
| Genus | Poecilia |
| Species | vivipara |
| Common Name | Guaru |
| State | PR |
| County | Mayaguez |
| Locality | Cano Majagual, Mayaguez, small side stream entering the Cano, ca. 500 m from its mouth |
| Mapping Accuracy | Approximate |
| HUC8 Name | Culebrinas-Guanajibo |
| HUC8 Number | 21010003 |
| HUC10 Number | 2101000304 |
| Map | |
| Collection Day | 9 |
| Collection Month | 6 |
| Collection Year | 1973 |
| Year Accuracy | Actual |
| Potential Pathway | stocked for biocontrol |
| Status | established |
| Comments | Side stream ca. 1-3 ft wide & 1-8 in deep draining a red mangrove swamp. |
| Record Type | Specimen |
| Disposal | University of Michigan Museum of Natural History |
| Museum Cat Number | UMMZ 198775 |
| Verifier | R. R. Miller |
| Freshwater/Marine | Brackish |
| Size | 22-42 mm SL |
| Number Preserved | 25 |