| Specimen ID | 237443 |
| Group | Fishes |
| Genus | Gambusia |
| Species | holbrooki |
| Common Name | Eastern Mosquitofish |
| State | PR |
| County | Cayey |
| Locality | Cayey River near Cayey |
| Mapping Accuracy | Accurate |
| HUC8 Name | Eastern Puerto Rico |
| HUC8 Number | 21010005 |
| HUC10 Name | Rio de la Plata Watershed |
| HUC10 Number | 2101000507 |
| HUC12 Name | Rio de la Plata at Represa Comerio Dam |
| HUC12 Number | 210100050707 |
| Map | |
| Collection Day | 20 |
| Collection Month | 2 |
| Collection Year | 1931 |
| Year Accuracy | Actual |
| Potential Pathway | stocked for biocontrol |
| Status | established |
| Record Type | Specimen |
| Disposal | University of Michigan Museum of Natural History |
| Museum Cat Number | UMMZ 160631 |
| Verifier | C. L. Hubbs and R. R. Miller |
| Freshwater/Marine | Freshwater |
| Size | 21-29 mm SL |
| Number Preserved | 12 |
